Quantifying the contributions of road and air traffic to ambient ultrafine particles in two urban communities
This study aims to delineate and quantify the traffic's contributions to size-resolved and total UFPs in two urban communities. To achieve this, stationary sampling was conducted at near-road and near-airport communities in Seattle, Washington State, to monitor UFP number concentrations during 2018-2020. Comprehensive correlation analyses among all variables were performed. Furthermore, a fully adjusted generalized additive model, incorporating meteorological factors, was developed to quantify the contributions of road and air traffic to size-resolved and total UFPs. The study found that vehicle emissions accounted for 29%...
Source: Environmental Pollution - March 31, 2024 Category: Environmental Health Authors: Chunliang Wang Jianbang Xiang Elena Austin Timothy Larson Edmund Seto Source Type: research
Effect of pyrolysis temperature and molecular weight on characterization of biochar derived dissolved organic matter from invasive plant and binding behavior with the selected pharmaceuticals
In this study, the binding behavior of BDOM pyrolyzed at 300-700 °C with sulfathiazole, acetaminophen, chloramphenicol (CAP), and carbamazepine (CMZ) was investigated based on a multi-analytical approach. Generally, the pyrolysis temperature exhibited a more significant impact on the spectral properties of BDOM and pharmaceutical binding behavior than those of the molecular weight. With increased pyrolysis temperature, the dissolved organic carbon decreased while the proportion of the protein-like substance increased. The highest binding capacity towards the drugs was observed for the BDOM pyrolyzed at 500 °C with the mo...
Source: Environmental Pollution - March 31, 2024 Category: Environmental Health Authors: Wangyu Wang Minghua Nie Caixia Yan Yulong Yuan Aoxue Xu Mingjun Ding Peng Wang Min Ju Source Type: research
The effects and potential mechanisms of essential metals on the associations of polycyclic aromatic hydrocarbons with blood cell-based inflammation markers
CONCLUSION: 1-OH-Pyr and tin were significantly associated with LMR. Modification effects indicated that the inverse association of 1-OH-Pyr with LMR was mitigated with an increase in tin. The mediation effect of 8-OHdG on the inverse association of 1-OH-Pyr with LMR may be partially dependent on tin.PMID:38556152 | DOI:10.1016/j.envpol.2024.123856 (Source: Environmental Pollution)
Source: Environmental Pollution - March 31, 2024 Category: Environmental Health Authors: Xiaojing Liao Haimei Wu Kang Liu Yansen Bai Degang Wu Chaofan Guo Xin Liu Zhaorui Zhang Yongshun Huang Na Zhao Yongmei Xiao Qifei Deng Source Type: research
Preparation of highly adsorptive biochar by sequential iron impregnation under refluxing and pyrolysis at low temperature for removal of tetracycline
Environ Pollut. 2024 Mar 29;348:123886. doi: 10.1016/j.envpol.2024.123886. Online ahead of print.ABSTRACTIron-doping modification is a prevailing approach for improving adsorption capability of biochar with environmental friendliness, but usually requires high temperature and suffers from iron aggregation. Herein, a highly adsorptive biochar was manufactured via sequential disperse impregnation of iron by refluxing and pyrolysis at low temperature for eliminating tetracycline (TC) from aqueous solution. Iron oxides and hydroxides were impregnated and stably dispersed on the carbon matrix as pyrolyzed at 200 °C, meanwhile ...
Source: Environmental Pollution - March 31, 2024 Category: Environmental Health Authors: Ahui Sun Siyao Bian Linzhou Li Zijing Guo Wanjie Li Jihui Li Shuying Xu Pan-Dao Liu Source Type: research
Identification of particle distribution pattern in vertical profile via unmanned aerial vehicles observation
Environ Pollut. 2024 Mar 29:123893. doi: 10.1016/j.envpol.2024.123893. Online ahead of print.ABSTRACTBelow the boundary layer, the air pollutants have been confirmed to present the decreasing trend with the height in most situaitons. However, the disperiosn rate of air pollutants in the vertical profile is rarely investigated in detail, especially through in-situ measurement. With this consideration, we employed an unmanned aerial vehicle equipped with portable monitoring equipments to scrutinize the vertical distribution of PM2.5. Based on the original data, we found that PM2.5 concentration decreases gradually with altit...
Source: Environmental Pollution - March 31, 2024 Category: Environmental Health Authors: Zhi-Heng Chen Bo-Wen Li Bai Li Zhong-Ren Pengd Hai-Chao Huang Jun-Qi Wu Hong-Di He Source Type: research
Sublethal acetamiprid exposure induces immunity, suppresses pathways linked to juvenile hormone synthesis in queens and affects cycle-related signaling in emerging bees
Environ Pollut. 2024 Mar 29:123901. doi: 10.1016/j.envpol.2024.123901. Online ahead of print.ABSTRACTAcetamiprid is the only neonicotinoid registered in the European Union because the risks of neonicotinoids to honey bees and other pollinators are strictly regulated. Herein, we orally exposed honey bee colonies to sublethal concentrations of acetamiprid (20 μg/L) under isolated conditions. After one month of continuous exposure, the emerging bees and queens were collected and analyzed via high-throughput label-free quantitative proteomics using a data-independent acquisition strategy. Six and 34 significantly differential...
Source: Environmental Pollution - March 31, 2024 Category: Environmental Health Authors: Tomas Erban Martin Markovic Bruno Sopko Source Type: research
Comparison of the potential toxicity induced by microplastics made of polyethylene terephthalate (PET) and polylactic acid (PLA) on the earthworm Eiseniafoetida
This study aimed at exploring the potential toxicity induced by the exposure for 28 days to irregular shaped and differently sized MPs made of a fossil-based (polyethylene terephthalate - PET) and a bioplastic (polylactic acid - PLA) polymer on the earthworm Eisenia foetida. Two amounts (1 g and 10 g/kkg of soil, corresponding to 0.1% and 1% of soil weight) of both MP types were administered to the earthworms. A multi-level approach was used to investigate the MP-induced effects at sub-individual and individual level. Changes in the activity of antioxidant and detoxifying enzymes, as well as in lipid peroxidation levels, w...
Source: Environmental Pollution - March 31, 2024 Category: Environmental Health Authors: Marco Parolini Beatrice De Felice Stefano Gazzotti Michela Sugni Marco Aldo Ortenzi Source Type: research
Light oxygenated volatile organic compound concentrations in an Eastern Mediterranean urban atmosphere rivalling those in megacities
This study highlights the seasonal variability of OVOCs, the potential role of background pollution on OVOC concentrations, traffic emissions of OVOCs, and the secondary production of OVOCs during both summer and winter. The primary and secondary OVOC fractions were estimated using two methods based on the night-time emission ratio and photochemical age. Our calculations coupled with a correlation analysis revealed the following: firstly, background concentrations contributed significantly, especially for longer-lived OVOCs, such as methanol and acetone (30%-80%). Secondly, secondary production in summer increased up to 60...
Source: Environmental Pollution - March 31, 2024 Category: Environmental Health Authors: Agn ès Borbon Th érèse Salameh St éphane Sauvage Charbel Afif Source Type: research
Quantifying the contributions of road and air traffic to ambient ultrafine particles in two urban communities
This study aims to delineate and quantify the traffic's contributions to size-resolved and total UFPs in two urban communities. To achieve this, stationary sampling was conducted at near-road and near-airport communities in Seattle, Washington State, to monitor UFP number concentrations during 2018-2020. Comprehensive correlation analyses among all variables were performed. Furthermore, a fully adjusted generalized additive model, incorporating meteorological factors, was developed to quantify the contributions of road and air traffic to size-resolved and total UFPs. The study found that vehicle emissions accounted for 29%...
Source: Environmental Pollution - March 31, 2024 Category: Environmental Health Authors: Chunliang Wang Jianbang Xiang Elena Austin Timothy Larson Edmund Seto Source Type: research
Effect of pyrolysis temperature and molecular weight on characterization of biochar derived dissolved organic matter from invasive plant and binding behavior with the selected pharmaceuticals
In this study, the binding behavior of BDOM pyrolyzed at 300-700 °C with sulfathiazole, acetaminophen, chloramphenicol (CAP), and carbamazepine (CMZ) was investigated based on a multi-analytical approach. Generally, the pyrolysis temperature exhibited a more significant impact on the spectral properties of BDOM and pharmaceutical binding behavior than those of the molecular weight. With increased pyrolysis temperature, the dissolved organic carbon decreased while the proportion of the protein-like substance increased. The highest binding capacity towards the drugs was observed for the BDOM pyrolyzed at 500 °C with the mo...
Source: Environmental Pollution - March 31, 2024 Category: Environmental Health Authors: Wangyu Wang Minghua Nie Caixia Yan Yulong Yuan Aoxue Xu Mingjun Ding Peng Wang Min Ju Source Type: research
The effects and potential mechanisms of essential metals on the associations of polycyclic aromatic hydrocarbons with blood cell-based inflammation markers
CONCLUSION: 1-OH-Pyr and tin were significantly associated with LMR. Modification effects indicated that the inverse association of 1-OH-Pyr with LMR was mitigated with an increase in tin. The mediation effect of 8-OHdG on the inverse association of 1-OH-Pyr with LMR may be partially dependent on tin.PMID:38556152 | DOI:10.1016/j.envpol.2024.123856 (Source: Environmental Pollution)
Source: Environmental Pollution - March 31, 2024 Category: Environmental Health Authors: Xiaojing Liao Haimei Wu Kang Liu Yansen Bai Degang Wu Chaofan Guo Xin Liu Zhaorui Zhang Yongshun Huang Na Zhao Yongmei Xiao Qifei Deng Source Type: research
Preparation of highly adsorptive biochar by sequential iron impregnation under refluxing and pyrolysis at low temperature for removal of tetracycline
Environ Pollut. 2024 Mar 29:123886. doi: 10.1016/j.envpol.2024.123886. Online ahead of print.ABSTRACTIron-doping modification is a prevailing approach for improving adsorption capability of biochar with environmental friendliness, but usually requires high temperature and suffers from iron aggregation. Herein, a highly adsorptive biochar was manufactured via sequential disperse impregnation of iron by refluxing and pyrolysis at low temperature for eliminating tetracycline (TC) from aqueous solution. Iron oxides and hydroxides were impregnated and stably dispersed on the carbon matrix as pyrolyzed at 200 °C, meanwhile abun...
Source: Environmental Pollution - March 31, 2024 Category: Environmental Health Authors: Ahui Sun Siyao Bian Linzhou Li Zijing Guo Wanjie Li Jihui Li Shuying Xu Pan-Dao Liu Source Type: research
Impact of meteorological factors on Cd availability and average concentration prediction in rice growth cycle
This study supported a novel foundation for the precise prediction of Cd content in rice.PMID:38554834 | DOI:10.1016/j.envpol.2024.123858 (Source: Environmental Pollution)
Source: Environmental Pollution - March 30, 2024 Category: Environmental Health Authors: Yuanlong Wang Liang Peng Xiao Deng Hejun Ao Huijuan Song Xiaolin Kuang Anwei Chen Source Type: research
Statistical modelling, optimization, and mechanistic exploration of novel ureolytic Enterobacter hormaechei IITISM-SA3 in cadmium immobilization under microbial inclusive and cell-free conditions through microbially induced calcite precipitation
Environ Pollut. 2024 Mar 28:123880. doi: 10.1016/j.envpol.2024.123880. Online ahead of print.ABSTRACTThe study aimed to evaluate the potential of a novel isolated ureolytic Enterobacter hormaechei IITISM-SA3 in cadmium bioremoval through MICP. The optimization and modelling of the biotic and abiotic factors affecting the process of mineralization were also performed. In addition, the underlying mechanism of MICP-driven Cd mineralization under microbial-inclusive and cell-free conditions was revealed and supported through the characterization of the bio-precipitates obtained using various characterization techniques. The re...
Source: Environmental Pollution - March 30, 2024 Category: Environmental Health Authors: Saumya Anand Vipin Kumar Ankur Singh Dixita Phukan Nishant Pandey Source Type: research
Using the fish plasma model to evaluate potential effects of pharmaceuticals in effluent from a large urban wastewater treatment plant
Environ Pollut. 2024 Mar 28:123842. doi: 10.1016/j.envpol.2024.123842. Online ahead of print.ABSTRACTSeveral pharmaceuticals and personal care products (PPCPs) were evaluated using the fish plasma model (FPM) for juvenile Chinook salmon exposed to effluent from a large urban wastewater treatment plant. The FPM compares fish plasma concentrations to therapeutic values determined in human plasma as an indication of potential adverse effects. We used human Cmax values, which are the maximum plasma concentration for a minimum therapeutic dose. Observed and predicted plasma concentrations from juvenile Chinook salmon exposed to...
Source: Environmental Pollution - March 30, 2024 Category: Environmental Health Authors: James P Meador Suzanne C Ball C Andrew James Jenifer K McIntyre Source Type: research
