Journal of Environmental Health Science and Engineering This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

Concentration and source allocation of black carbon by AE-33 model in urban area of Shenzhen, southern China
ConclusionThis study showed that the concentration of BC is lower than other regions, and the source allocation is mainly local fossil fuels (vehicle emission, etc.). (Source: Journal of Environmental Health Science and Engineering)
Source: Journal of Environmental Health Science and Engineering - March 10, 2022 Category: Environmental Health Source Type: research

Optimizing the effect of hydrochar on anaerobic digestion of organic fraction municipal solid waste for biogas and methane production
ConclusionAs an OFMSW HTC pretreatment for AD, hydrochar additive has a significantly positive and negative effect on biogas production, methane production, and methane content of biogas depending on operating conditions. Therefore. It is necessary to consider the individual and interaction effects of the temperature and hydrochar: OFMSW ratio, obtain the optimal conditions and determine responses. (Source: Journal of Environmental Health Science and Engineering)
Source: Journal of Environmental Health Science and Engineering - March 9, 2022 Category: Environmental Health Source Type: research

Effects of tobacco smoke on indoor air quality: the use of mosses in biomonitoring
AbstractThis research was carried out to assess the possibility of usingPleurozium schreberi mosses as bioindicators of atmospheric aerosol pollution in living quarters (kitchen and bedroom), with metals originating from tobacco smoke from various types of cigarettes: conventional cigarettes, e-cigarettes and heated tobacco products. Themoss-bag method of active biomonitoring was used. The mosses were exposed in these indoor spaces for three months and, after the exposition period, their analytes – Ni, Cu, Zn, Cd and Pb – were determined using flame atomic absorption spectrometry(F-AAS). Results were interpreted using ...
Source: Journal of Environmental Health Science and Engineering - February 28, 2022 Category: Environmental Health Source Type: research

Elimination and detoxification of phenanthrene assisted by a laccase from halophile Alkalibacillus almallahensis
In this study, the removal or (oxidizing) ability of Phe by a laccase fromAlkalibacillus almallahensis was investigated. The laccase (12 U mL−1) was able to remove 63% of Phe (50  mg L−1) under optimal conditions of 40  °C, pH 8, 1.5 M NaCl and in the presence of 1 mM HBT as a laccase mediator after a 72 h incubation period. The results for the effect of different solvents, ionic and non-ionic surfactants on the activity of the halophilic laccase towards Phe showed that the addition of these compounds increase removal efficiency and complete enzymatic removal of Phe will achieve in a solution of 5% (v/v) acetone a...
Source: Journal of Environmental Health Science and Engineering - February 28, 2022 Category: Environmental Health Source Type: research

Polyaromatic hydrocarbons biodegradation using mix culture of microorganisms from sewage waste sludge: application of artificial neural network modelling
ConclusionThe results indicated that the mixed culture of microorganisms from sewage waste sludge could effectively consume naphthalene and phenanthrene as carbon and energy sources. Also, the ANN model could efficiently predict the experimental results for biodegradation treatment. (Source: Journal of Environmental Health Science and Engineering)
Source: Journal of Environmental Health Science and Engineering - February 26, 2022 Category: Environmental Health Source Type: research

Evaluation of the relationship between psychological distress and sleep problems with annoyance caused by exposure to environmental noise in the adult population of Tehran Metropolitan City, Iran
ConclusionThe findings indicated that the study population was highly sensitive to noise. In addition, the relatively high percentage of people who exposed to non-standard levels of sound indicates that this exposure has the potential to cause physical and mental consequences among them. (Source: Journal of Environmental Health Science and Engineering)
Source: Journal of Environmental Health Science and Engineering - February 26, 2022 Category: Environmental Health Source Type: research

Identification and determination of the volatile organics of third-hand smoke from different cigarettes and clothing fabrics
In this study, toluene-reference concentration (TRC) was calculated for volatile compounds and estimated based on the basic response characteristics of GC/MS. Among the identified analytes, 16 compounds were quantified presenting high toxicity and/or abundance in smoke, such as: benzene, toluene, xylene, pyridine, limonene, naphthalene, furfural and nicotine. The results showed that the total quantified volatile organics released for cotton, wool, polyester and filament fabrics were 92.37, 93.09, 87.88, and 50.22  μg/l fabric, respectively. Fabric structure significantly affects chemical off-gassing. Natural fibers were ...
Source: Journal of Environmental Health Science and Engineering - February 22, 2022 Category: Environmental Health Source Type: research

Potential of lytic bacteriophages as disinfectant to control of Pseudomonas aeruginosa on fomites
ConclusionsBacteriophages can be used as a new option for the development of biological products aimed at the control and deletion of pathogens on contaminated hard surfaces. (Source: Journal of Environmental Health Science and Engineering)
Source: Journal of Environmental Health Science and Engineering - February 7, 2022 Category: Environmental Health Source Type: research

Evaluation of pollutants in perfumes, colognes and health effects on the consumer: a systematic review
This article aims to review the relevant literature published up to August 2020 to determine whether perfumes and colognes can affect people ’s health. Relevant articles were identified through electronic search. A total of 562 articles were selected and finally 37 related articles were included in the study after the screening process. The results of this systematic study showed that phthalates, aldehydes, parabens and aluminum-based salts are the most important contaminants in aromatic products that cause side effects such as allergies, breast cancer, reproductive disorders, especially in males, skin allergies, nervous...
Source: Journal of Environmental Health Science and Engineering - February 3, 2022 Category: Environmental Health Source Type: research

Risk assessment of uptake of trace elements through consumption of cereals: a pilot study in Yerevan, Armenia
AbstractThe study aimed to assess the dietary exposure and related human health risks associated with trace elements through the intake of staple cereals, including buckwheat, rice, and emmer. The contents of Lead (Pb), Cadmium (Cd), Mercury (Hg), Nickel (Ni), Molybdenum (Mo), Iron (Fe), and Copper (Cu) were determined using Atomic Absorption Spectrometry. Cereal consumption data were obtained through a Semi-Quantitative Food Frequency Questionnaire amongst the Yerevan adult population. Concentrations of Pb, Cd, Hg, Ni, Mo, Fe and Cu were 0.75-5.56  µg/kg, 1.21-6 µg/kg, 6.7-6.99 µg/kg, 50.6-111 µg/kg, 20-429 µg/k...
Source: Journal of Environmental Health Science and Engineering - January 31, 2022 Category: Environmental Health Source Type: research

Influence of alumina nanoparticles on the performance of polyacrylonitrile membranes in MBR
This study aims to investigate the effect of using Al2O3 nanoparticles (NPs) in membrane structure on the operation condition of the membrane bioreactor. To this end, alumina NPs as the high hydrophilic agents with an approximate size of 40  nm and a concentration of 0–3 wt.% were placed within the PAN polymeric membrane matrix structure with high hydrophilicity and high mechanical resistance over the others via the phase inversion method. Characterization of synthesized nanocomposite membranes was carried out by SEM analysis. In th e presence of the alumina NPs, the porosity of the membranes improved. The water contact...
Source: Journal of Environmental Health Science and Engineering - January 30, 2022 Category: Environmental Health Source Type: research

The assessment of lead concentration in raw milk collected from some major dairy farms in Iran and evaluation of associated health risk
AbstractMilk is one of the most consumed sources among people, especially children. hence, its contamination with heavy metals can pose a serious risk to children. Therefore, this study aimed to measure the lead concentration as one of the most dangerous heavy metals in the raw milk of several major animal husbandries in Tehran province from Iran. A total of 57 raw milk samples were collected from different regions of Tehran province. The lead contents were measured using a graphite furnace atomic absorption spectrometer. To evaluate the risk of the samples and hazard quotient (HQ) were calculated. The results showed that ...
Source: Journal of Environmental Health Science and Engineering - January 29, 2022 Category: Environmental Health Source Type: research

Toxicity and Anti-feeding effect of Aesculushippocastanum, Thymus daenensis, Artemisia abrotanum, and Chrozophora tinctoria on Sitophillus oryzae
ConclusionsThe use of plants in the control against storage pests such as rice weevils will have favorable environmental results, human health and less storage is dangerous. (Source: Journal of Environmental Health Science and Engineering)
Source: Journal of Environmental Health Science and Engineering - January 29, 2022 Category: Environmental Health Source Type: research

Hybrid magnetic core –shell TiO2@CoFe3O4 composite towards visible light-driven photodegradation of Methylene blue dye and the heavy metal adsorption: isotherm and kinetic study
This study focused on several factors that influence metal ion adsorption, including initia l concentrations, adsorbent dose, pH, and contact time. The TCM nanocomposite successfully separated the heavy metal ion Pb(II) from aqueous solutions, and the model predictions exactly matched the experimental results. For TCM material, the maximum adsorption efficiency for Pb(II) was 33.09 mg/g. The photocatalytic performance of TiO2 and TCM is about 12% and 91% after 60  min for MB dye degradation. It was found that TiO2@CoFe3O4 core –shell nanoparticles perform better as photo catalysts than pure TiO2 and CoFe3O4due to their...
Source: Journal of Environmental Health Science and Engineering - January 27, 2022 Category: Environmental Health Source Type: research

A comprehensive study on the adsorption-photocatalytic processes using CoFe2O4/SiO2/MnO2 magnetic nanocomposite as a novel photo-catalyst for removal of Cr (VI) under simulated sunlight: Isotherm, kinetic and thermodynamic studies
ConclusionsThe results showed that the synthesized CoFe2O4/SiO2/MnO2 magnetic nanocomposite holds a great potential for use as a photocatalyst to remove Cr (VI) in adsorption reactions. It can be used as an effective catalyst in the eradication of Cr (VI) wastewater.Graphical abstract (Source: Journal of Environmental Health Science and Engineering)
Source: Journal of Environmental Health Science and Engineering - January 25, 2022 Category: Environmental Health Source Type: research