The relationship between energy production and simultaneous nitrification and denitrification via bioelectric derivation of microbial fuel cells at different anode numbers.
In this study, three microbial fuel cells (MFCs) with different numbers of anodes (i.e., 1A, 3A, and 5A) were constructed to study the effects of a multi-anode (MA) system on power generation performance and nitrogen (N) removal from low carbon (C)/N wastewater. The maximum power density of 3A-MFC was 236.7 mW m-3, which was 2.6-fold and 1.2-fold that of 1A-MFC and 5A-MFC, respectively. The 3A-MFC system produced the highest total energy output in one cycle, approximately 41.7 mW h, which was 1.5-fold and 1.3-fold that of 1A-MFC and 5A-MFC, respectively. 3A-MFC also had the highest total N (TN) removal ...
Source: Environmental Research - February 11, 2020 Category: Environmental Health Authors: Huang S, Zhu G, Gu X Tags: Environ Res Source Type: research
Microbial community analysis and correlation with 2-methylisoborneol occurrence in landscape lakes of Beijing.
In this study, focusing on seven landscape lakes in Beijing, the microbial communities were investigated based on 16S rRNA gene amplicon sequencing, and typical odor-causing compounds and interfering factors were identified. The results showed that 2-methylisoborneol (MIB) was the major odor-causing compound responsible for the earthy/musty odor in landscape lakes. For algal communities, Chlorella and Diatoms were the main eukaryote algae in the water. The bacterial community was dominated by Proteobacteria at the phylum level, and then Cyanobacteria, Actinobacteria, and Firmicutes, etc., most of which were the major phyla...
Source: Environmental Research - February 10, 2020 Category: Environmental Health Authors: Zhang J, Zhang H, Li L, Wang Q, Yu J, Chen Y Tags: Environ Res Source Type: research
CuCo2O4 supported on activated carbon as a novel heterogeneous catalyst with enhanced peroxymonosulfate activity for efficient removal of organic pollutants.
Abstract CuCo2O4 was synthesized via a relatively simple method, and innovatively supported onto the activated carbon (AC) by calcination to obtain a novel heterogeneous catalyst (AC-CuCo2O4). Brilliant red 3BF (3BF) was selected as the probe compound to investigate the catalytic activity of AC-CuCo2O4 in the presence of peroxymonosulfate (PMS). The results showed that 98% removal rate could be achieved and the reaction rate constant (0.476 min-1) was 5.2 times greater than that of CuCo2O4 alone (0.091min-1), suggesting that the introduction of AC could greatly enhance the catalytic activity of pure CuCo2O4. Typic...
Source: Environmental Research - February 10, 2020 Category: Environmental Health Authors: Chen S, Liu X, Gao S, Chen Y, Rao L, Yao Y, Wu Z Tags: Environ Res Source Type: research
Removal of copper(II) ions and lead(II) from aqueous solutions using seeds of Azadirachta indica A. Juss as bioadsorvent.
ra RN Abstract In recent decades, aquatic environment pollution has become a global challenge due to a rapid industrial growth. In this context, adsorption has become one of the most used methods, gaining importance especially in the last decades, given the growing concern over environmental damages caused by these pollutants. Additionally, its low cost and bioavailability are attractive. Therefore, the present study proposed to investigate the adsorption potential of A. indica seeds for Cu(II) and Pb(II) removal in synthetic solutions. Equilibrium studies were carried out via isothermal adsorption in batch system...
Source: Environmental Research - February 8, 2020 Category: Environmental Health Authors: Costa WD, da Silva Bento AM, de Araújo JAS, Menezes JMC, da Costa JGM, da Cunha FAB, Coutinho HDM, de Paula Filho FJ, Pereira Teixeira RN Tags: Environ Res Source Type: research
The interactions and adsorption mechanisms of ternary heavy metals on boron nitride.
Abstract In this work, the interactions and adsorption mechanisms of Cu2+, Cd2+, and Ni2+ on boron nitride (BN) were tested by the simultaneous removal of metal ions from synthetic wastewater. BN was characterized using XRD, SEM, and FTIR spectroscopy. The adsorption differences between BN and the metal ions were explored through comparative studies in a single and ternary system. In the ternary system, adsorption occurs rapidly in the first 2 min for the metal ions, and the affinity order follows Cu2+>Cd2+>Ni2+. However, adsorption behavior changes due to the interaction between metal ions in the terna...
Source: Environmental Research - February 8, 2020 Category: Environmental Health Authors: Han F, Zong Y, Jassby D, Wang J, Tian J Tags: Environ Res Source Type: research
Cylindrospermopsin induces abnormal vascular development through impairing cytoskeleton and promoting vascular endothelial cell apoptosis by the Rho/ROCK signaling pathway.
In this study, we examined the toxic effects of CYN on vascular development and the possible mechanism of vascular toxicity induced by CYN using zebrafish embryos and human umbilical vein endothelial cells (HUVECs). CYN exposure induced abnormal vascular development and led to an increase in the growth of common cardinal vein (CCV), in which CCV remodeling was delayed as reflected by the larger CCV area and wider ventral diameter. CYN decreased HUVECs viability, inhibited HUVECs migration, promoted HUVECs apoptosis, destroyed cytoskeleton, and increased intracellular ROS levels. Additionally, CYN could promote the expressi...
Source: Environmental Research - February 7, 2020 Category: Environmental Health Authors: Wang L, Chen G, Xiao G, Han L, Wang Q, Hu T Tags: Environ Res Source Type: research
Simulated photocatalytic aging of biochar in soil ecosystem: Insight into organic carbon release, surface physicochemical properties and cadmium sorption.
Abstract Photochemical/photocatalytic reaction, one of the aging pathway of biochar in soil, not only changed the physicochemical properties of biochar, but also affected the migration and transformation of pollutants. Wheat straw biochar was photocatalytic aged in a Fenton-like system using organic acid as buffer solution under light sources, the organic carbon release and surface chemical changes of biochar were investigated to illustrate the adsorption behaviors. With Fe(III) or α-Fe2O3 added, the total organic carbon (TOC) of aged biochar solution was influenced more by buffer system than light sources, ...
Source: Environmental Research - February 7, 2020 Category: Environmental Health Authors: Quan G, Fan Q, Cui L, Zimmerman AR, Wang H, Zhu Z, Gao B, Wu L, Yan J Tags: Environ Res Source Type: research
Menstrual blood concentrations of parabens and benzophenones and related factors in a sample of Spanish women: An exploratory study.
CONCLUSIONS: This study reveals, to our knowledge for the first time, the widespread presence of several PBs and BzPs in intimate contact with gynecological tissues, although their concentrations in menstrual blood were not correlated with those in peripheral blood from the same women. These results shed light on the information provided by the menstrual blood as a potential matrix for characterizing exposure to PBs and BzPs, whose consequences for women's reproductive health need to be addressed. PMID: 32062483 [PubMed - as supplied by publisher] (Source: Environmental Research)
Source: Environmental Research - February 7, 2020 Category: Environmental Health Authors: Iribarne-Durán LM, Domingo-Piñar S, Peinado FM, Vela-Soria F, Jiménez-Díaz I, Barranco E, Olea N, Freire C, Artacho-Cordón F, Ocón-Hernández O Tags: Environ Res Source Type: research
A probabilistic modeling framework for assessing the impacts of large reservoirs on river thermal regimes - A case of the Yangtze River.
Abstract Hydrological and thermal river regimes have changed greatly due to the construction of reservoirs and dams. Water temperature changes have important significance for aquatic habitats and freshwater ecosystems. To investigate the impact of large reservoirs on the water temperature regime along the middle reach of the Yangtze River, we present a probabilistic modeling framework to ascertain the joint dependence structures of air-water temperature and discharge-water temperature between pre-reservoir and post-reservoir periods based on the copula theory. The results show that the principle of maximum entropy...
Source: Environmental Research - February 7, 2020 Category: Environmental Health Authors: Tao Y, Wang Y, Wang D, Ni L, Wu J Tags: Environ Res Source Type: research
Comparison of temperature-mortality associations using observed weather station and reanalysis data in 52 Spanish cities.
CONCLUSIONS: Reanalysis data allow the estimation of the health effects of temperature, even in areas located far from weather stations or without any available. PMID: 32058146 [PubMed - as supplied by publisher] (Source: Environmental Research)
Source: Environmental Research - February 6, 2020 Category: Environmental Health Authors: Royé D, Íñiguez C, Tobías A Tags: Environ Res Source Type: research
Inhibitory functions of maslinic acid on particulate matter-induced lung injury through TLR4-mTOR-autophagy pathways.
In conclusion, these findings indicate that MA has a critical anti-inflammatory effect due to its ability to regulate both the TLR4-MyD88 and mTOR-autophagy pathways and may thus be a potential therapeutic agent against diesel PM2.5-induced lung injury. PMID: 32058145 [PubMed - as supplied by publisher] (Source: Environmental Research)
Source: Environmental Research - February 5, 2020 Category: Environmental Health Authors: Jeong SY, Kim J, Park EK, Baek MC, Bae JS Tags: Environ Res Source Type: research
Hotspot detection and socio-ecological factor analysis of asthma hospitalization rate in Guangxi, China.
CONCLUSIONS: The GDP per capita appears to have the strongest correlation with asthma hospitalization rates. High-risk areas were identified in central and western Guangxi characterized by high GDP per capita. These findings may be helpful for authorities developing targeted asthma prevention policies for high-risk areas and vulnerable populations, especially during high-risk periods. PMID: 32050128 [PubMed - as supplied by publisher] (Source: Environmental Research)
Source: Environmental Research - February 5, 2020 Category: Environmental Health Authors: Ma R, Liang L, Kong Y, Zhai S, Gu J, Zhang G, Wang T Tags: Environ Res Source Type: research
Associations of maternal ozone exposures during pregnancy with maternal blood pressure and risk of hypertensive disorders of pregnancy: A birth cohort study in Guangzhou, China.
Abstract Although studies have assessed the associations of maternal exposure to ozone (O3) during pregnancy with blood pressure and the risk of hypertensive disorders of pregnancy (HDP), the results were inconsistent. Furthermore, no studies have been conducted in China where the ambient O3 concentration continuedly increased. The present study aimed to estimate the effects of maternal exposure to O3 during pregnancy on the HDP risk, systolic blood pressure (SBP), diastolic blood pressure (DBP) and pulse pressure (PP). All participants of pregnant women were selected from the prospective birth cohort study on Pre...
Source: Environmental Research - February 5, 2020 Category: Environmental Health Authors: Cao W, Dong M, Sun X, Liu X, Xiao J, Feng B, Zeng W, Hu J, Li X, Guo L, Wan D, Sun J, Ning D, Wang J, Chen D, Zhang Y, Du Q, Ma W, Liu T Tags: Environ Res Source Type: research
Reduced repressive epigenetic marks, increased DNA damage and Alzheimer's disease hallmarks in the brain of humans and mice exposed to particulate urban air pollution.
, Varela-Nallar L Abstract Exposure to air pollutants is associated with an increased risk of developing Alzheimer's disease (AD). AD pathological hallmarks and cognitive deficits are documented in children and young adults in polluted cities (e.g. Metropolitan Mexico City, MMC). Iron-rich combustion- and friction-derived nanoparticles (CFDNPs) that are abundantly present in airborne particulate matter pollution have been detected in abundance in the brains of young urbanites. Epigenetic gene regulation has emerged as a candidate mechanism linking exposure to air pollution and brain diseases. A global decrease of ...
Source: Environmental Research - February 4, 2020 Category: Environmental Health Authors: Calderón-Garcidueñas L, Herrera-Soto A, Jury N, Maher BA, González-Maciel A, Reynoso-Robles R, Ruiz-Rudolph P, van Zundert B, Varela-Nallar L Tags: Environ Res Source Type: research
Degradation of the anticancer drug flutamide by solar photo-Fenton treatment at near-neutral pH: Identification of transformation products and in silico (Q)SAR risk assessment.
In this study, the degradation of FLUT, at two different initial concentrations in ultra-pure water, was carried out by SPF. The initial SPF conditions were pH0 5, [Fe2+]0 = 5 mg L-1, and [H2O2]0 = 50 mg L-1. Preliminary elimination rates of 53.4% and 73.4%. The kinetics of FLUT degradation could be fitted by a pseudo-first order model and the kobs were 6.57 × 10-3 and 9.13 × 10-3 min-1 t30W and the half-life times were 95.62 and 73.10 min t30W were achieved for [FLUT]0 of 5 mg L-1 and 500 μg L-1, respectively. Analysis usin...
Source: Environmental Research - February 4, 2020 Category: Environmental Health Authors: Della-Flora A, Wilde ML, Pinto IDF, Lima ÉC, Sirtori C Tags: Environ Res Source Type: research
Spatial and temporal assessment of radiofrequency electromagnetic fields emitted by smart meters and smart meter banks in urban environments.
Abstract This paper describes radiofrequency (RF) electromagnetic field (EMF) measurements in the vicinity of single and banks of advanced metering infrastructure (AMI) smart meters. The measurements were performed in a meter testing and distribution facility as well as in-situ at five urban locations. The measurements consisted of gauging the RF environment at the place of assessment, evaluating the worst-case electric-field levels at various positions around the assessed AMI meter configuration (spatial assessment), which ranged from a single meter to a bank of 81 m, and calculating the duty cycle of the sy...
Source: Environmental Research - February 4, 2020 Category: Environmental Health Authors: Aerts S, Van den Bossche M, Vergara X, Odie S, Verloock L, Martens L, Joseph W Tags: Environ Res Source Type: research
Iron foam combined ozonation for enhanced treatment of pharmaceutical wastewater.
In this study, iron foam combined ozonation was employed as an advanced oxidation process to treat the organic contaminants in real pharmaceutical wastewater. It was found that this procedure worked well in a wide range of pH, the existence of iron foam in ozonation system markedly elevated the mineralization level of organic contaminants. Within the reaction time of 120 min, iron foam combined ozonation achieved 53% of DOC removal percentage, which was 21% higher than that of ozone alone. Meanwhile, the biodegradability of the pharmaceutical wastewater was improved, a large part of the organic pollutants containing b...
Source: Environmental Research - January 31, 2020 Category: Environmental Health Authors: Huang Y, Jiang J, Ma L, Wang Y, Liang M, Zhang Z, Li L Tags: Environ Res Source Type: research
Ozone-related asthma emergency department visits in the US in a warming climate.
Abstract Ozone exposure is associated with higher risk of asthma-related emergency department visits. The meteorological conditions that govern ozone concentration are projected to be more favorable to ozone formation over much of the United States due to continued climate change, even as emissions of anthropogenic ozone precursors are expected to decrease by 2050. Our goal is to quantify the health benefits of a climate change mitigation scenario versus a "business-as-usual" scenario, defined by the United Nations Intergovernmental Panel on Climate Change Representative Concentration Pathways (RCPs) 4.5...
Source: Environmental Research - January 31, 2020 Category: Environmental Health Authors: Nassikas N, Spangler K, Fann N, Nolte CG, Dolwick P, Spero TL, Sheffield P, Wellenius GA Tags: Environ Res Source Type: research
Sustainable production of alkyl esters via thermal process in the presence of carbon black.
In this study, it is introduced a sustainable synthetic route of alkyl esters, considered value-added industrial chemicals and fuels, from volatile fatty acids (VFAs) that can potentially be generated from organic waste. In the presence of a porous carbon material, the thermally induced reaction could be conducted under an initial pressure of 1 atm. Even though the reaction was finished within 90 wt% yields. The carbon black showed better performance for both reactions than other commercially available porous material such as silica. This work suggests that carbon is a good option of being used as a porous materi...
Source: Environmental Research - January 30, 2020 Category: Environmental Health Authors: Kwon EE, Jung JM, Kim HJ, Lee J Tags: Environ Res Source Type: research
Interspecies comparison of the residue levels and profiles of persistent organic pollutants in terrestrial top predators.
Abstract Serum samples from three species of living terrestrial top predators were analysed for six groups of persistent organic pollutants (POPs), such as polychlorinated biphenyls (PCBs), dichlorodiphenyltrichloroethane and its metabolites (DDTs), chlordane compounds (CHLs), hexachlorocyclohexane isomers (HCHs), hexachlorobenzene (HCB) and polybrominated diphenyl ethers (PBDEs). The study included three carnivore species: lion (Panthera leo), hyena (Hyena brunnea) and cheetah (Acinonyx jubatus). All samples were collected from healthy living animals between 2004 and 2005. Most of the samples (wild lions (n ...
Source: Environmental Research - January 25, 2020 Category: Environmental Health Authors: Malarvannan G, Poma G, Covaci A Tags: Environ Res Source Type: research
Alzheimer disease starts in childhood in polluted Metropolitan Mexico City. A major health crisis in progress.
l A, Reynoso-Robles R, Mukherjee PS Abstract Exposures to fine particulate matter (PM2.5) and ozone (O3) above USEPA standards are associated with Alzheimer's disease (AD) risk. Metropolitan Mexico City (MMC) youth have life time exposures to PM2.5 and O3 above standards. We focused on MMC residents ≤30 years and reviewed 134 consecutive autopsies of subjects age 20.03 ± 6.38 y (range 11 months to 30 y), the staging of Htau and ß amyloid, the lifetime cumulative PM2.5 (CPM 2.5) and the impact of the Apolipoprotein E (APOE) 4 allele, the most prevalent genetic risk for AD. We als...
Source: Environmental Research - January 25, 2020 Category: Environmental Health Authors: Calderón-Garcidueñas L, Torres-Jardón R, Kulesza RJ, Mansour Y, González-González LO, Gónzalez-Maciel A, Reynoso-Robles R, Mukherjee PS Tags: Environ Res Source Type: research
Enhanced reduction of sulfate and chromium under sulfate-reducing condition by synergism between extracellular polymeric substances and graphene oxide.
In this study, bio-reduction of Cr was compared between free-living bacterium BY7 and immobilized BY7 (BY-rGO) on reduced GO particles. The role of extracellular polymeric substances (EPS) and rGO material on reduction of sulfate and Cr was investigated. Cr(VI) was reduced to Cr(III) and elemental Cr by BY-rGO particles up to 51% and 28%, respectively. EPS produced by the bacterium BY7 mainly consisted of proteins, polysaccharides, nucleic acids and humic substances. Concentration of EPS was sharply increased (about 54%) with the addition of graphene oxide, while the composition of EPS components was strongly affected by t...
Source: Environmental Research - January 25, 2020 Category: Environmental Health Authors: Yan J, Ye W, Liang X, Wang S, Xie J, Zhong K, Bao M, Yang J, Wen H, Li S, Chen Y, Gu JD, Zhang H Tags: Environ Res Source Type: research
Estimating health burden and economic loss attributable to short-term exposure to multiple air pollutants in China.
Abstract Existing studies focused on the evaluation of health burden of long-term exposure to air pollutants, whereas limited information is available on short-term exposure, particularly in China. Air pollutant concentrations in 338 Chinese cities in 2017 were used to estimate the air pollutants related health burden which was defined as premature mortalities from all-cause, cardiovascular and respiratory disease as well as hospital admissions for cardiovascular and respiratory disease. Log-linear model was used as the exposure-response function to estimate the health burden attributable to each air pollutant. Th...
Source: Environmental Research - January 25, 2020 Category: Environmental Health Authors: Yao M, Wu G, Zhao X, Zhang J Tags: Environ Res Source Type: research
Air Quality Index and air quality awareness among adults in the United States.
CONCLUSIONS: Among U.S. adults, air quality awareness increases with increasing days with alerts of unhealthy air. These findings improve our understanding of the extent to which air quality alerts prompt people to take actions to protect their health amidst poor air quality. PMID: 32007750 [PubMed - as supplied by publisher] (Source: Environmental Research)
Source: Environmental Research - January 25, 2020 Category: Environmental Health Authors: Mirabelli MC, Ebelt S, Damon SA Tags: Environ Res Source Type: research
Treatment enhances the prevalence of antibiotic-resistant bacteria and antibiotic resistance genes in the wastewater of Sri Lanka, and India.
Abstract Wastewater treatment plants (WWTPs) are being debated for being the hot spots for the development of antibiotic resistance in pathogenic microbial communities. We observed the prevalence of antibiotic-resistant bacteria (ARB), antibiotic resistance genes (ARG), and multidrug resistance (MDR) in two municipal WWTPs and one hospital WWTP in Western and Southern Sri Lanka, and compared the results with particular reference to Indian and the World scenario to trace the imprints of treatment on ARB and ARG. Result suggests that although wastewater treatment resulted in higher than 1.06 log Escherichia coli (E....
Source: Environmental Research - January 24, 2020 Category: Environmental Health Authors: Kumar M, Ram B, Sewwandi H, Sulfikar, Honda R, Chaminda T Tags: Environ Res Source Type: research
Towards a risk evaluation of workers' exposure to handborne and airborne microbial species as exemplified with waste collection workers.
In conclusion, the workers were exposed to several species of microorganisms of which some to varying degrees can be evaluated concerning risk. Thus, some microorganisms belong to Risk Group 2, and some are described as causing agents of occupational health problems, emerging pathogens, or intrinsically antibiotic resistant. For some other species very little is known. The TIP, cytotoxicity, and ability to form biofilm of the dominating fungi support and expand previous findings. These parameters depended on the species and the dose, thus highlighting the importance of species identification and exposure level in the risk ...
Source: Environmental Research - January 23, 2020 Category: Environmental Health Authors: Madsen AM, Frederiksen MW, Jacobsen MH, Tendal K Tags: Environ Res Source Type: research
Predictors of urinary and blood Metal(loid) concentrations among pregnant women in Northern Puerto Rico.
er JD Abstract Given the potential adverse health effects related to toxic trace metal exposure and insufficient or excessive levels of essential trace metals in pregnant women and their fetuses, the present study characterizes biomarkers of metal and metalloid exposure at repeated time points during pregnancy among women in Puerto Rico. We recruited 1040 pregnant women from prenatal clinics and collected urine, blood, and questionnaire data on demographics, product use, food consumption, and water usage at up to three visits. All samples were analyzed for 16 metal(loid)s: arsenic (As), barium (Ba), beryllium (Be)...
Source: Environmental Research - January 23, 2020 Category: Environmental Health Authors: Ashrap P, Watkins DJ, Mukherjee B, Boss J, Richards MJ, Rosario Z, Vélez-Vega CM, Alshawabkeh A, Cordero JF, Meeker JD Tags: Environ Res Source Type: research
Metal(loid) exposure assessment and biomarker responses in captive and free-ranging European brown bear (Ursus arctos).
er Đ Abstract We investigated the level of five non-essential metal(loid)s (As, Cd, Hg, Tl, Pb) and nine essential metals (Mg, Ca, Mn, Fe, Co, Cu, Zn, Se, Mo) in hair and blood components of captive and free-ranging European brown bear populations in Croatia and Poland. Metal(loid) associations with biomarkers of oxidative stress (superoxide dismutase, SOD; glutathione-peroxidase, GSH-Px; malondialdehyde, MDA) and metal exposure (metallothionein, MT) were estimated in this top predatory mammal. Lead was the most abundant non-essential metal(loid) in both blood and hair, with 4 of 35 individuals having blood level...
Source: Environmental Research - January 23, 2020 Category: Environmental Health Authors: Lazarus M, Orct T, Sergiel A, Vranković L, Marijić VF, Rašić D, Reljić S, Aladrović J, Zwijacz-Kozica T, Zięba F, Jurasović J, Erk M, Maślak R, Selva N, Huber Đ Tags: Environ Res Source Type: research
Environmental performance of an industrial biofilter: Relationship between photochemical oxidation and odorous impacts.
Martín MA Abstract Biological techniques are widely used to treat gaseous streams derived from waste treatment plants. The generation of volatile organic compounds (VOCs) is one of the principal pollution sources in composting facilities from which nuisance odours are released. In addition, the generation of photochemical smog with other gases such as NOX can produce ozone at ground level due to their photochemical ozone creation potential (POCP). In this work, the performance of an industrial biofilter was evaluated from an environmental point of view. Specifically, this study evaluated the potential impa...
Source: Environmental Research - January 23, 2020 Category: Environmental Health Authors: Reyes J, Gutiérrez MC, Toledo M, Vera L, Sánchez L, Siles JA, Martín MA Tags: Environ Res Source Type: research
Effects of cold recovery technology on the microbial drinking water quality in unchlorinated distribution systems.
The objective of this study was to investigate the impact of cold recovery from DWDSs on the microbiological quality of drinking water. For this purpose, three pilot distribution systems were operated in parallel for 38 weeks. System 1 has an operational heat exchanger, mimicking the cold recovery system by maintaining the water temperature at 25 °C; system 2 operated with a non-operational heat exchanger and system 3 run without heat exchanger. The results showed no significant effects on drinking water quality: cell numbers and ATP concentrations remained around 3.5 × 105 cells/ml and 4 ...
Source: Environmental Research - January 23, 2020 Category: Environmental Health Authors: Ahmad JI, Liu G, van der Wielen PWJJ, Medema G, Peter van der Hoek J Tags: Environ Res Source Type: research
Climate adaptive crop-residue management for soil-function improvement; recommendations from field interventions at two agro-ecological zones in South Asia.
Abstract Utilization of biomass energy from various agricultural wastes for local usages and its removal through open burning potentially increase emission of Green House Gases (GHGs), deteriorate air-quality, formation of tropospheric ozone and create trans-boundary health hazards in countries of South East Asia. The effect of common agro-waste management practices in soil quality and agricultural production system over this part of the world is not well documented. In the present three-years long study, spanning over two entirely different agro-ecological zones of India and Bhutan, highlights the impacts of the ...
Source: Environmental Research - January 23, 2020 Category: Environmental Health Authors: Dey D, Gyeltshen T, Aich A, Naskar M, Roy A Tags: Environ Res Source Type: research
Comparing biochar- and bentonite-supported Fe-based catalysts for selective degradation of antibiotics: Mechanisms and pathway.
Abstract The selective degradation of recalcitrant antibiotics into byproducts with low toxicity and high biodegradability has been increasingly popular using peroxymonosulfate (PMS) based advanced oxidation processes (AOPs). In this paper, two Fe-based heterogeneous catalysts, bentonite supported Fe-Ni composite (BNF) and biochar-supported Fe composite (Fe/C), were tailored and comprehensively characterized for distinctive physicochemical properties, crystalline structures, and interfacial behaviors. Two widely used antibiotics, sulfapyridine (SPY) and oxytetracycline (OTCs) at their common concentrations in phar...
Source: Environmental Research - January 22, 2020 Category: Environmental Health Authors: Li Z, Sun Y, Yang Y, Han Y, Wang T, Chen J, Tsang DCW Tags: Environ Res Source Type: research
Validation of RUSLE K factor using aggregate stability in contrasted mediterranean eco-geomorphological landscapes (southern Spain).
This study deals with the validation of RUSLE K factor by means of soil aggregate stability analysed in two-contrasted watersheds from one Mediterranean mountainous region in South of Spain, under sub-humid and semiarid climatic conditions. In both of them, landscape dynamic from 1956 to 2016 was analysed in order to characterize the modifications in land uses. A total of 361-soil samples was also taken covering all land uses for analysing aggregate stability of soils as well as those soil properties needed to calculate the RUSLE K factor. The results indicated that: i) landscape dynamic was influenced by changes in land u...
Source: Environmental Research - January 21, 2020 Category: Environmental Health Authors: Martínez-Murillo JF, Remond R, Ruiz-Sinoga JD Tags: Environ Res Source Type: research
Residential exposure to outdoor air pollution and adult lung function, with focus on small airway obstruction.
het L Abstract Although a growing body of evidence suggests that chronic exposure to outdoor air pollution is linked to a decline in lung function, data on flow at low lung volumes that may be more specific of small airway obstruction are still scarce. We aimed to study the associations between residential exposure to air pollution and lung function, with specific focus on small airways obstruction. We assessed 2995 French participants (aged between 40 and 65) in the ELISABET cross-sectional survey. Residential exposures to nitrogen dioxide (NO2), particulate matter with a diameter
Source: Environmental Research - January 21, 2020 Category: Environmental Health Authors: Havet A, Hulo S, Cuny D, Riant M, Occelli F, Cherot-Kornobis N, Giovannelli J, Matran R, Amouyel P, Edmé JL, Dauchet L Tags: Environ Res Source Type: research
An integrated approach for tannery effluent treatment with ozonation and phycoremediation: A feasibility study.
Abstract For the exploration of an effective and economical method to treat composite raw tannery effluent, the integrated approach of Ozonation and phycoremediation was followed. In a lab-scale Ozone reactor, the highest performance index was attained, when it was operated at a low O3 flowrate (2 g/h) condition. The tannery effluent partially treated by Ozonation (≈60% COD removed in 90 min) with the ozone consumption of 1.5 g of O3/g of COD, at pH 7.6, coupled with phycoremediation had improved the tannery effluent characteristics to a considerable extent. Overall, the maximum reduction in p...
Source: Environmental Research - January 21, 2020 Category: Environmental Health Authors: Saranya D, Shanthakumar S Tags: Environ Res Source Type: research
Photo-induced degradation of bio-toxic Ciprofloxacin using the porous 3D hybrid architecture of an atomically thin sulfur-doped g-C3N4/ZnO nanosheet.
In this study, photocatalytic degradation using materials with high surface area and active sites was proposed to remove such contaminants. We demonstrated an easily scalable and simple synthesis route to prepare a 3D porous sulfur-doped g-C3N4/ZnO hybrid material, and the preparation process parameters were optimized using response surface methodology targeting Ciprofloxacin degradation. The hybrid material removed up to 98% of the bio-toxic Ciprofloxacin from synthetic water. The porous, defect engineered, thermally stable, and chemically interconnected hybrid material presented an 18 and 38% improved degradation efficie...
Source: Environmental Research - January 20, 2020 Category: Environmental Health Authors: Gupta B, Gupta AK, Ghosal PS, Tiwary CS Tags: Environ Res Source Type: research
Nonmetric multidimensional scaling and adverse effects on aquatic biota of polycyclic aromatic hydrocarbons in sediments: A case study of a typical aquaculture wetland, China.
Abstract Aquaculture wetlands, particularly those located within urban areas, are fragile ecosystems which are generally heavily impacted by urban and aquaculture activities. However, there are, to date, no reports on adverse effects related to polycyclic aromatic hydrocarbons (PAHs) in sediments from aquaculture wetlands in metropolitan areas. The characterization, sources, and incidence of adverse effects on aquatic biota of PAHs were studied in the riverine and estuarine sediments of the Rongjiang River in an aquaculture wetland in Chaoshan metropolis. The total PAH concentrations varied from 46.0 to 1665.2&nbs...
Source: Environmental Research - January 7, 2020 Category: Environmental Health Authors: Gu YG, Ke CL, Gao YP, Liu Q, Li YF Tags: Environ Res Source Type: research
A novel framework for decomposing PM2.5 variation and demographic change effects on human exposure using satellite observations.
This study proposed a novel diagnostic framework using satellite observations to decompose the variation in cρ resulting from change in the mean PM2.5 concentration, spatial difference in PM2.5 change, and demographic change. In this framework, we decomposed cρ into mean PM2.5 concentration (c0) and pollution-population-coincidence induced PM2.5 exposure (PPCE). We then used this framework to decompose the variation in cρ over China within three recent Five-Year Plans (FYPs) (2001-2015). The results showed that the decline in c0 reduced cρ in most provinces within the eleventh and twelfth FYPs. The spatial ...
Source: Environmental Research - January 7, 2020 Category: Environmental Health Authors: Lin C, Lau AKH, Lao XQ, Fung JCH, Lu X, Li Z, Ma J, Li C, Wong AHS Tags: Environ Res Source Type: research
Global impact of ciguatoxins and ciguatera fish poisoning on fish, fisheries and consumers.
ta PR Abstract Ciguatera fish poisoning (CFP) is one of the most devastating food-borne illnesses caused by fish consumption. Ciguatoxins (CTXs) are potent neurotoxins synthesized by the benthic microalgae Gambierdiscus spp. and Fukuyoa spp. that are transmitted to fish by grazing and predation. Despite the high incidence of CFP, affecting an estimated number of 50,000 persons per year in tropical and subtropical latitudes, the factors underlying CTXs occurrence are still not well understood. Toxin transfer and dynamics in fish and food-webs are complex. Feeding habits and metabolic pathways determine the toxin pr...
Source: Environmental Research - January 7, 2020 Category: Environmental Health Authors: Soliño L, Costa PR Tags: Environ Res Source Type: research
Urban-rural moisture contrast: Regulator of the urban heat island and heatwaves' synergy over a mediterranean city.
Abstract The current study observed the effect of the synergistic interaction of urban heat island (UHI) and heatwaves (HWs) which is different from the sum of their separate effects on the medium-sized town of Nicosia, Cyprus. From an analysis of hourly meteorological records of eight consecutive years (2007-2014) we defined HWs with respect to air temperature (T95-over the 95th percentile air temperatures) as well as the heat index (HI65-heat index over 65degC) and studied their effects on the local UHI phenomenon. Both heatwave types were characterized by increased air temperature, lower wind speed and increase...
Source: Environmental Research - January 3, 2020 Category: Environmental Health Authors: Pyrgou A, Hadjinicolaou P, Santamouris M Tags: Environ Res Source Type: research
Urinary bisphenol A and its analogues and haemato-biochemical alterations of pregnant women in Korea.
CONCLUSIONS: BPA has a harmful effect on hemato-biochemical changes that occur during pregnancy. Further studies should investigate the relation between widespread exposure to bisphenols and effects on human health. PMID: 31927299 [PubMed - as supplied by publisher] (Source: Environmental Research)
Source: Environmental Research - January 3, 2020 Category: Environmental Health Authors: Kang S, Shin BH, Kwon JA, Lee CW, Park EK, Park EY, Kim B Tags: Environ Res Source Type: research
Reviewing estimates of the basic reproduction number for dengue, Zika and chikungunya across global climate zones.
CONCLUSIONS: The results indicate climate zone to be an important determinant of the basic reproduction number, R0, for dengue, Zika virus, and chikungunya. The role of other factors as determinants of R0, such as methods, environmental and social conditions, and disease control, should be further investigated. The results suggest that R0 may increase in temperate regions in response to global warming, and highlight the increasing need for strengthening preparedness and control activities. PMID: 31927301 [PubMed - as supplied by publisher] (Source: Environmental Research)
Source: Environmental Research - January 3, 2020 Category: Environmental Health Authors: Liu Y, Lillepold K, Semenza JC, Tozan Y, Quam MBM, Rocklöv J Tags: Environ Res Source Type: research
Effects of variations in meteorological factors on daily hospital visits for asthma: A time-series study.
This study explored the associations between daily variations in meteorological factors and hospital visits for asthma among different ages, genders, and asthma subtypes in Shenyang, China. A distributed lag non-linear model with Poisson regression was used; confounding factors included day of the week, holidays, and seasonal patterns, and long-term trends and air pollutants were adjusted using natural cubic splines. The meteorological factor with the largest cumulative effect was barometric pressure, which increased the risk of hospital visits for adult asthma (relative risk [RR] = 2.414), followed by maximum wi...
Source: Environmental Research - January 3, 2020 Category: Environmental Health Authors: Zhang H, Liu S, Chen Z, Zu B, Zhao Y Tags: Environ Res Source Type: research
Environmental contaminant 2-chloro-N-(2,6-diethylphenyl)-N-(methoxymethyl)acetamide remediation via Xanthomonas axonopodis and Aspergillus niger.
Abstract Alachlor, a chloroacetanilide endocrine disruptor herbicide is precarious for humans as well as the environment. Though banned by the European Union and classified as moderately hazardous by WHO, yet it is nevertheless used in several countries posing austere human and environmental health issues. Alachlor attenuation was scrutinized through simulated biodegradation experiments using soil-isolated microbes. Bio-disintegrative assays of pure three fungal and one bacterial strain; Aspergillus flavus (AF), Penicillium chrysogenum (PC), Aspergillus niger (AN) and Xanthomonas axonopodis (XA), respectively were...
Source: Environmental Research - January 3, 2020 Category: Environmental Health Authors: Ahmad KS Tags: Environ Res Source Type: research
Impact of extreme temperatures on ambulance dispatches in London, UK.
CONCLUSIONS: Ambulance dispatches can be associated with extreme temperatures, dependent on the dispatch category. It is recommended that meteorological factors are factored into ambulance forecast models and warning systems, allowing for improvements in ambulance and general health service efficiency. PMID: 31918315 [PubMed - as supplied by publisher] (Source: Environmental Research)
Source: Environmental Research - January 3, 2020 Category: Environmental Health Authors: Sangkharat K, Mahmood MA, Thornes JE, Fisher PA, Pope FD Tags: Environ Res Source Type: research
Development and characterization of a human cell line-based transactivation assay to assess thyroid EDCs.
Abstract Thyroid hormones (THs) are one of the most important hormones, playing key roles in the regulation of various physiological functions. Although THs have important function in human, in vitro test methods based on human cells are currently insufficient to effectively screen and test TH-related endocrine disrupting chemicals (EDCs). We established a TH agonist TA assay using the adenocarcinomic human alveolar basal epithelial cell line A549 to test and screen potential TH agonists. To establish the TH agonist TA assay, a TRE-secNluc-IRES-EGFP reporter cassette was constructed and transfected into the A549&n...
Source: Environmental Research - January 2, 2020 Category: Environmental Health Authors: Lee SH, Seo H, Lee HS, Park Y Tags: Environ Res Source Type: research
Uranium concentration in umbilical cord may increase the risk for orofacial clefts.
CONCLUSION: Our study found that in utero exposure to high level of U was associated with increased risk of OFCs and its subtype CLP. PMID: 31918316 [PubMed - as supplied by publisher] (Source: Environmental Research)
Source: Environmental Research - December 31, 2019 Category: Environmental Health Authors: Guo Y, Liu L, Ni W, Pan Y, Chen Y, Xie Q, Liu Y, Jin L, Li Z, Ren A, Wang L Tags: Environ Res Source Type: research
Influence of El Ni ño events on sea surface salinity over the central equatorial Indian Ocean.
Influence of El Niño events on sea surface salinity over the central equatorial Indian Ocean. Environ Res. 2019 Dec 28;182:109097 Authors: Yue W, Lin L, Xiaotong Z Abstract The El Niño event is a major large-scale air-sea interaction phenomenon over the tropical Pacific region. Previous studies classified El Niño into three types - canonical El Niño, El Niño Modoki I, and El Niño Modoki II. This research reveals that different types of El Niño present dramatic effects on the interannual variability of sea surface salinity over the central equatorial Ind...
Source: Environmental Research - December 28, 2019 Category: Environmental Health Authors: Yue W, Lin L, Xiaotong Z Tags: Environ Res Source Type: research
The impact of permafrost on carbon dioxide and methane fluxes in Siberia: A meta-analysis.
Abstract There are serious concerns associated with greenhouse gases (GHG) fluxes in high latitude ecosystems and how the permafrost thawing may potentially affect the global climate, through the alteration of carbon (C) dioxide (CO2) and methane (CH4) emissions. We performed a meta-analysis of 3002 observations from 104 published studies on CO2 and CH4 fluxes in Siberia (Russian Federation). Siberia is a vast region characterized by a large C-rich permafrost region, which is already degrading due to escalating climate change, and also large wetland areas, also regarded as a source of CH4. GHG fluxes were strongly...
Source: Environmental Research - December 28, 2019 Category: Environmental Health Authors: Masyagina OV, Menyailo OV Tags: Environ Res Source Type: research
Impact of nanomaterials on ecosystems: Mechanistic aspects in vivo.
Abstract Nanotechnologies are becoming increasingly popular in modern era of human development in every aspect of life. Their impact on our ecosystem in air, soil, and water is largely unknown because of the limited amount of information available, and hence, they require considerable attention. This account highlights the important routes of nanomaterials toxicity in air, soil, and water, their possible impact on the ecosystem and aquatic life. The mechanistic aspects have been focused on the size, shape, and surface modifications of nanomaterials. The preventive measures and future directions along with appropri...
Source: Environmental Research - December 28, 2019 Category: Environmental Health Authors: Bakshi MS Tags: Environ Res Source Type: research