596,919 results match your criteria environmental pollution

Soybean residue based biochar prepared by ball milling assisted alkali activation to activate peroxydisulfate for the degradation of tetracycline.

J Colloid Interface Sci 2021 Apr 19;599:631-641. Epub 2021 Apr 19.

College of Environmental Science and Engineering, Hunan University, Lushan South Road, Yuelu District, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Lushan South Road, Yuelu District, Changsha 410082, PR China. Electronic address:

The advanced oxidation process (AOPs) has caused great concern in recent years. Among them, biochar has been widely studied as a catalyst for advanced oxidation process because of its low price and low environmental risk. In this study, a novel ball milling assisted KOH activation biochar (MKBC) was prepared and applied in peroxydisulfate (PDS) activation to degrade tetracycline hydrochloride (TC-H). Read More

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Polystyrene microplastics-induced ROS overproduction disrupts the skeletal muscle regeneration by converting myoblasts into adipocytes.

J Hazard Mater 2021 Apr 27;417:125962. Epub 2021 Apr 27.

College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China. Electronic address:

The environmental problem of Microplastics (MPs) pollution poses a great threat to human and animal health, which has attracted global attention. The physiological integrity of skeletal muscle is extremely important for the survival of animals. Here, we investigated the effect of two size polystyrene microplastics (PS-MPs, 1-10 µm and 50-100 µm) on the growth of anterior tibial (TA) muscle and repair after injury in mice. Read More

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In Situ Oil Separation and Collection from Water under Surface Wave Condition.

Langmuir 2021 May 12. Epub 2021 May 12.

Beijing Key Laboratory of Multiphase Flow and Heat Transfer for Low Grade Energy Utilization, North China Electric Power University, Beijing 102206, China.

Removal of oil from water is strongly desired due to environmental pollution, and related studies are mainly limited to the material itself. Here, we propose an oil-water separation device, called a floating well, which includes a container for oil collection and a modified mesh screen for oil separation. The mesh screen is superhydrophilic to oil and superhydrophobic to water. Read More

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Antibiotic residues in the aquatic environment - current perspective and risk considerations.

J Environ Sci Health A Tox Hazard Subst Environ Eng 2021 May 12:1-19. Epub 2021 May 12.

School of Biosystems and Food Engineering, University College Dublin, Dublin, Ireland.

Antimicrobial resistance is a major concern for human and animal health, projected to deteriorate with time and given current trends of antimicrobial usage. Antimicrobial use, particularly in healthcare and agriculture, can result in the release of antimicrobials into surface waters, promoting the development of antibiotic resistance in the environment, and potentially leading to human health risks. This study reviews relevant literature, and investigates current European and Irish antimicrobial usage trends in humans and animals, as well as potential pathways that antibiotics can take into surface waters following use. Read More

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Image of the environmental scientist.

Sci Prog 2021 Apr-Jun;104(2):368504211017420

Faculty of Life Sciences, Hefei Normal University, Hefei, China.

The environmental scientist has been playing an important role in preventing and mitigating environmental pollution. Individuals' images of the environmental scientist will likely impact and meditate their interest and attitudes toward environmental science as well as their willingness to take up an environmental science profession. However, prior studies focusing on the image of a professional are primarily of the general scientist. Read More

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Air quality in cabin environment of different passenger cars: effect of car usage, fuel type and ventilation/infiltration conditions.

Environ Sci Pollut Res Int 2021 May 12. Epub 2021 May 12.

Department of Mechanical Engineering, Environmental Technology Laboratory, University of Western Macedonia, Sialvera & Bakola Street, 50100, Kozani, Greece.

Despite that commuters spend only 5.5% of their time in cabin vehicles, their exposure to harmful air pollutants, originated from the vehicle itself, and traffic emission is considered significant. In this study, two passenger cars with different type of fuels were investigated in terms of air quality and thermal comfort of their cabin. Read More

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Spatial distribution of PM-bound elements in eighteen cities over China: policy implication and health risk assessment.

Environ Geochem Health 2021 May 12. Epub 2021 May 12.

Key Laboratory of Aerosol Chemistry & Physics (KLACP), Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710061, China.

In this study, 30 elements in fine particulate matter (PM) were measured in 18 Chinese cities in 2013. Elemental pollution in northern, southwest, and central China were severe, attributing to excessive coal and biomass combustion in these regions. The concentrations of S, Cl, and K in these areas were 8. Read More

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Biodegradation of chlorpyrifos by a Weissella confusa strain and evaluation of some probiotic traits.

Arch Microbiol 2021 May 12. Epub 2021 May 12.

Laboratory of Molecular Toxicology, Faculty of Nature and Life Sciences, University Mohamed Seddik Benyahia of Jijel, Jijel, Algeria.

Pesticides play an important role in agriculture; however, their excessive use causes several problems such as pollution of ecosystems and risks to human health. The presence of microorganisms able to degrade these pollutants can reduce their negative effect. The objective of this study was to test the capacity of Weissella confusa Lb. Read More

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Overall health impacts of a potential increase in cycle commuting in Stockholm, Sweden.

Scand J Public Health 2021 May 12:14034948211010024. Epub 2021 May 12.

Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden.

Aims: To estimate the overall health impact of transferring commuting trips from car to bicycle.

Methods: In this study registry information on the location of home and work for residents in Stockholm County was used to obtain the shortest travel route on a network of bicycle paths and roads. Current modes of travel to work were based on travel survey data. Read More

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Coal Is Dirty, but Where It Is Burned Especially Matters.

Environ Sci Technol 2021 May 12. Epub 2021 May 12.

College of Urban and Environmental Sciences, Laboratory for Earth Surface Processes, Sino-French Institute for Earth System Science, Peking University, Beijing 100871, China.

Coal abatement actions for pollution reduction often target total coal consumption. The health impacts of coal uses, however, vary extensively among sectors. Here, we modeled the sectorial contributions of coal uses to emissions, outdoor and indoor PM (particulate matter with an aerodynamic diameter of less than 2. Read More

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Analysis of income inequality and environmental pollution in BRICS using fresh asymmetric approach.

Environ Sci Pollut Res Int 2021 May 12. Epub 2021 May 12.

Pakistan Institute of Development Economics (PIDE), Islamabad, Pakistan.

With rapid economic growth, BRICS is facing enormous burdens of carbon emission and severe issues of income inequality. However, behind this economic success, the BRICS economies also face few thoughtful challenges to improve environmental quality by catching up the sustainable development goals. Consequently, the existing empirical research is concerned with the dynamic links between income inequality and CO emissions by using the novel nonlinear ARDL approach, but small attention has been paid to the BRICS in literature. Read More

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Understanding linkages between environmental risk factors and noncommunicable diseases-A review.

FASEB Bioadv 2021 May 4;3(5):287-294. Epub 2021 Mar 4.

Global Institute for Interdisciplinary Studies (GIIS) Kathmandu Nepal.

Environmental factors such as climate change are now underway, which have substantial impacts on health and well-being of human kind, but still imprecisely quantified, implications for human health. At present, one of the most significant discussions among scientists worldwide is interdependency of escalating environmental risk factors and the increasing rates of noncommunicable diseases (NCDs), which are the leading cause of death and disability worldwide. Climate change also triggers the occurrence of NCDs through a variety of direct and indirect pathways. Read More

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A study on the effects of regional differences on agricultural water resource utilization efficiency using super-efficiency SBM model.

Sci Rep 2021 May 11;11(1):9953. Epub 2021 May 11.

College of Economics and Trade, Xinjiang Agricultural University, Urumqi, 830052, Xinjiang, China.

This study evaluated the water resource utilization efficiency and resource consumption for planting, forestry, animal husbandry, and fishery in various regions of China. Using the super-efficiency Slacks-Based Measure (SBM) analysis method, the main agricultural pollution emissions (Chemical Oxygen Demand, ammonia nitrogen, and agricultural carbon emissions) were proposed as environmental constraints for the first time. The threshold regression model was used to measure the impact of agricultural water use efficiency on agricultural water consumption by constructing seven different explanatory variables. Read More

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Chronic airflow obstruction and ambient particulate air pollution.

Thorax 2021 May 11. Epub 2021 May 11.

Medicine, Obafemi Awolowo University, Ile-Ife, Osun, Nigeria.

Smoking is the most well-established cause of chronic airflow obstruction (CAO) but particulate air pollution and poverty have also been implicated. We regressed sex-specific prevalence of CAO from 41 Burden of Obstructive Lung Disease study sites against smoking prevalence from the same study, the gross national income per capita and the local annual mean level of ambient particulate matter (PM) using negative binomial regression. The prevalence of CAO was not independently associated with PM but was strongly associated with smoking and was also associated with poverty. Read More

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Efficient Nitrification and Low-Level NO Emission in a Weakly Acidic Bioreactor at Low Dissolved-Oxygen Levels Are Due to Comammox.

Appl Environ Microbiol 2021 May 11;87(11). Epub 2021 May 11.

School of the Environment, Guangdong Engineering Research Center of Water Treatment Processes and Materials, Jinan University, Guangzhou, China

Nitrification is an essential process for nutrient removal from wastewater and an important emission source of nitrous oxide (NO), which is a powerful greenhouse gas and a dominant ozone-depleting substance. In this study, nitrification and NO emissions were tested in two weakly acidic (pH 6.3 to 6. Read More

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Novel study on microbial fuel cells via a comprehensive bibliometric and dynamic approach.

Rev Environ Health 2021 May 11. Epub 2021 May 11.

Department of Environmental Engineering, University of Science and Technology Beijing, Beijing, China.

Microbial fuel cells (MFCs) are eco-friendly and useful bioelectrical devices that harness the natural metabolisms of microbes to produce electrical power directly from organic materials. In this study, a bibliometric analysis is conducted to evaluate MFC research from 2001 to 2018 on the basis of the Science Citation Index Expanded database. Overall, MFC research has experienced a dramatic increase over last 18 years, with an exponential growth in the accumulated number of publications. Read More

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Development of a new method for isolation of urban air particulates deposited in the human lung tissue.

Chemosphere 2021 Apr 27;280:130585. Epub 2021 Apr 27.

Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran; Department of Research Methodology and Data Analysis, Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran. Electronic address:

Particulate matters (PMs) are important pollutants in urban air pollution because of their variable composition. The pulmonary clearance of PMs is critical to prevent long-term immunological responses. This study established a new method for the isolation of probably deposited urban air particulates from the human lung tissue, to investigate the features of uncleared particulates. Read More

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Geochemical distribution and speciation of thallium in groundwater impacted by acid mine drainage (Southern China).

Chemosphere 2021 May 4;280:130743. Epub 2021 May 4.

School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China.

Thallium (Tl) commonly occurs in shallow groundwater affected by acid mine drainage (AMD); however, our knowledge of the occurrence of Tl in shallow groundwater is limited. This study observes that the shallow groundwater in an AMD-impacted area in Southern China contains an elevated Tl concentration (22 μg/L) under the oxidizing conditions and a low Tl concentration (<1 μg/L) in the reducing environment. The groundwater Tl concentration is positively correlated with oxidation-reduction potential (Eh) and negatively correlated with Cl content. Read More

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Study of heterogeneous reaction of dimethyl sulfide on atmospheric-like particulate TiO.

Chemosphere 2021 May 4;280:130771. Epub 2021 May 4.

National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of Chinese Academy of Sciences, Beijing, 101408, China. Electronic address:

Dimethyl sulfide (DMS) related to solar radiation and greenhouse effect is one of the most important volatile sulfides and its' oxidation products are also important contributors to acid rain. It is of great importance to study the consumption and reactions of DMS in the atmosphere. In this work, atmospheric-like particulate TiO was selected to study the reaction mechanism of DMS on TiO with the purpose to explore the possible heterogeneous oxidation of DMS. Read More

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Carboxylic acid reduction and sulfate-reducing bacteria stabilization combined remediation of Cr (VI)-contaminated soil.

Ecotoxicol Environ Saf 2021 May 8;218:112263. Epub 2021 May 8.

Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Science, Chengdu 610041, China; University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address:

For controlling heavy metal pollution, the utilization of carboxylic acids (CAs) combined with sulfate-reducing bacteria (SRB) for continuous and stable remediation of Cr (VI)-contaminated soil was comprehensively investigated. At pH 3, citrate and lactate had photocatalysis characteristics that enabled them to reduce high Cr (VI) concentrations. The reduction efficiencies of citrate and lactate were 99. Read More

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Primary and secondary aerosols in small passenger vehicle emissions: Evaluation of engine technology, driving conditions, and regulatory standards.

Environ Pollut 2021 May 3;286:117195. Epub 2021 May 3.

Department of Environmental Science, Hankuk University of Foreign Studies, Yongin, 17035, South Korea. Electronic address:

The characteristics of primary gas/aerosol and secondary aerosol emissions were identified for small passenger vehicles using typical fuel types in South Korea (gasoline, liquefied petroleum gas (LPG), and diesel). The generation of secondary organic aerosol (SOA) was explored using the potential aerosol mass (PAM) oxidation flow reactor. The primary emissions did not vary significantly between fuel types, combustion technologies, or aftertreatment systems, while the amount of NH was higher in gasoline and LPG vehicle emissions than that in diesel vehicle emissions. Read More

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Trade-offs between short-term mortality attributable to NO and O changes during the COVID-19 lockdown across major Spanish cities.

Environ Pollut 2021 May 4;286:117220. Epub 2021 May 4.

Climate and Health Program, Barcelona Institute for Global Health, Barcelona, Spain.

The emergence of the COVID-19 pandemic forced most countries to put in place lockdown measures to slow down the transmission of the virus. These lockdowns have led to temporal improvements in air quality. Here, we evaluate the changes in NO and O levels along with the associated impact upon premature mortality during the COVID-19 lockdown and deconfinement periods along the first epidemic wave across the provincial capital cities of Spain. Read More

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Combined lethal toxicities of pesticides with similar structures to Caenorhabditis elegans are not necessarily concentration additives.

Environ Pollut 2021 May 3;286:117207. Epub 2021 May 3.

Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China.

Studies have shown that the mixture toxicity of compounds with similar modes of action (MOAs) is usually predicted by the concentration addition (CA) model. However, due to the lack of toxicological information on compounds, more evidence is needed to determine whether the above conclusion is generally applicable. In general, the same type of compounds with similar chemical structures have similar MOAs, so whether the toxicities of the mixture of these compounds are additive needs to be further studied. Read More

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Sonochemical processes for the degradation of antibiotics in aqueous solutions: A review.

Ultrason Sonochem 2021 Apr 16;74:105566. Epub 2021 Apr 16.

Department of Drug Science and Technology, University of Turin, via P. Giuria 9, Turin 10125, Italy; World-Class Research Center "Digital Biodesign and Personalized Healthcare", Sechenov First Moscow State Medical University, 8 Trubetskaya ul, Moscow, Russia. Electronic address:

Antibiotic residues in water are general health and environmental risks due to the antibiotic-resistance phenomenon. Sonication has been included among the advanced oxidation processes (AOPs) used to remove recalcitrant contaminants in aquatic environments. Sonochemical processes have shown substantial advantages, including cleanliness, safety, energy savings and either negligible or no secondary pollution. Read More

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Bioremediation of triphenyl phosphate by Pycnoporus sanguineus: Metabolic pathway, proteomic mechanism and biotoxicity assessment.

J Hazard Mater 2021 May 4;417:125983. Epub 2021 May 4.

Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, College of Environmental Science and Engineering, Guilin 541004, Guangxi, China.

So far, no information about the biodegradability of TPhP by white rot fungi has previously been made available, herein, Pycnoporus sanguineus was used as the representative to investigate the potential of white rot fungi in TPhP bioremediation. The results suggested that the biodegradation efficiency of 5 mg/L TPhP by P. sanguineus was 62. Read More

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Selenium nanoparticles ameliorate Brassica napus L. cadmium toxicity by inhibiting the respiratory burst and scavenging reactive oxygen species.

J Hazard Mater 2021 Apr 16;417:125900. Epub 2021 Apr 16.

Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China. Electronic address:

Cadmium (Cd) is a widely distributed soil contaminant which induces oxidative damage and is therefore toxic to plants. Although selenium oxyanions such as selenite (SeO) and selenate (SeO) can alleviate Cd stress to plants, it is not known whether selenium nanoparticles (SeNPs) are able to do the same. The present study demonstrated the positive impact of both SeNPs and SeO on Brassica napus L. Read More

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Spatial pattern analysis reveals multiple sources of organophosphorus flame retardants in coastal waters.

J Hazard Mater 2021 Apr 15;417:125882. Epub 2021 Apr 15.

Chemistry College, Hanshan Normal University, Chaozhou 521041,China.

Organophosphorus flame retardants (PFRs) are a group of emerging contaminants which have been detected in worldwide waters. However, source of various PFRs in the large-scale area like coastal water environment have not been clearly revealed. In this study, fifteen PFRs in coast of Guangdong-Hong Kong-Macao Greater Bay area (GBA), China were investigated, and a method of spatial pattern analysis was firstly used for pollution source identification. Read More

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Pollution and ecological risk assessment, and source identification of heavy metals in sediment from the Beibu Gulf, South China Sea.

Mar Pollut Bull 2021 May 8;168:112403. Epub 2021 May 8.

School of Resources, Environment and Materials, Guangxi University, Nanning, China.

The Beibu Gulf is an important passageway between China and the Association of Southeast Asian Nations, where there has been an increase in pollution of heavy metals (HMs). High concentrations of Pb, Cr, Cd, Cu, Zn, As, and Hg in surface sediment were found in Qinzhou Bay, Fangchenggang, and other coastal areas. Stochastic geo-accumulation analyses identified the pollution to be "uncontaminated"; however, it had an 18% probability of deterioration. Read More

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Inhibition of tetracycline on anaerobic digestion of swine wastewater.

Bioresour Technol 2021 May 5;334:125253. Epub 2021 May 5.

College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China; Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China; Maoming Engineering Research Center for Organic Pollution Control, Academy of Environmental and Resource Sciences, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China. Electronic address:

The inhibition of tetracycline on anaerobic digestion of synthetic swine wastewater was examined with a semi-continuous operation for 103 days at a dosage ranging 2-8 mg/L. COD concentrations, VFA compositions in effluents and methane production were measured. The negative effects of tetracycline on the four individual steps of anaerobic digestion and its toxicity on anaerobic microorganisms were also evaluated. Read More

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Environmental assessment of carbon capture and storage (CCS) as a post-treatment technology in waste incineration.

Waste Manag 2021 May 8;128:99-113. Epub 2021 May 8.

Department of Environmental Engineering, Technical University of Denmark, Bygningstorvet 115, DK-2800 Lyngby, Denmark.

The effects of amending municipal solid waste incineration (MSWI) with carbon capture and storage (CCS) via MEA (Monoethanolamine) technology differ according to the air pollution control technologies and energy recovery systems. Electricity output reduces by one-third for power-only plants and halves for combined heat-and-power plants, while variations in heat recovery depend on the presence of flue gas condensation. MSWI with CCS can capture roughly 800 kg of compressed CO per tonne of waste treated. Read More

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