keyword
https://read.qxmd.com/read/38527898/natural-marmatite-photocatalyst-for-treatment-of-mineral-processing-wastewater-to-help-zero-wastewater-discharge
#21
JOURNAL ARTICLE
Meirong Wu, Wei Sun, Xiangsong Meng, Jianhua Kang, Yue Yang
Mineral processing wastewater (MPW) with large discharge and high toxicity affects environmental safety, and the realizing zero discharge of MPW is of great significance for reducing environmental pollution, saving water resources, and promoting the sustainable development of the mining industry. In this study, we reported natural marmatite (NM) as a low-cost and efficient photocatalyst for the treatment of MPW to help zero wastewater discharge. The photocatalytic activity of NM was evaluated by the removal of total organic carbon (TOC) from MPW under visible-light illumination, and the optimal degradation conditions were discussed...
August 2024: Journal of Environmental Sciences (China)
https://read.qxmd.com/read/38527897/health-risks-and-sources-of-trace-elements-and-black-carbon-in-pm-2-5-from-2019-to-2021-in-beijing
#22
JOURNAL ARTICLE
Chenjie Hua, Wei Ma, Feixue Zheng, Yusheng Zhang, Jiali Xie, Li Ma, Boying Song, Chao Yan, Hongyan Li, Zhen Liu, Qian Liu, Markku Kulmala, Yongchun Liu
A comprehensive health risk assessment of PM2.5 is meaningful to understand the current status and directions regarding further improving air quality from the perspective of human health. In this study, we evaluated the health risks of PM2.5 as well as highly toxic inorganic components, including heavy metals (HMs) and black carbon (BC) based on long-term observations in Beijing from 2019 to 2021. Our results showed that the relative risks of chronic obstructive pulmonary disease, lung cancer, acute lower respiratory tract infection, ischemic heart disease, and stroke decreased by 4...
August 2024: Journal of Environmental Sciences (China)
https://read.qxmd.com/read/38527715/effects-of-atmospheric-particulate-pollution-on-lung-function-of-athletes
#23
JOURNAL ARTICLE
Bo Zhang, Rongbao Huang, Yiluan Liu, Liwei Wang, Yunpeng Chen
There is a knowledge gap on how ground-level particulate pollution affects labor productivity in emerging nations due to a lack of study, especially when it comes to outdoor work settings like couriers in the express delivery industry. Combining findings from two research projects, this paper examines the socioeconomic consequences of particulate matter and ground-level particulate pollution. Special panel dataset from China's express delivery companies are used, we study how particulate pollution affects courier productivity...
March 23, 2024: Environmental Research
https://read.qxmd.com/read/38527631/development-of-persulfate-based-advanced-oxidation-processes-to-remove-synthetic-azo-dyes-from-aqueous-matrices
#24
REVIEW
Enric Brillas, Ramon Oliver
Azo dyes are largely used in many industries and discharged in large volumes of their effluents into the aquatic environment giving rise to non-esthetic pollution and health-risk problems. Due to the high stability of azo dyes in ambient conditions, they cannot be abated in conventional wastewater treatment plants. Over the last fifteen years, the decontamination of dyeing effluents by persulfate (PS)-based advanced oxidation processes (AOPs) has received a great attention. In these methods, PS is activated to be decomposed into sulfate radical anion (SO4 •- ), which is further partially hydrolyzed to hydroxyl radical (• OH)...
March 23, 2024: Chemosphere
https://read.qxmd.com/read/38527555/temporal-spatial-characteristics-and-sources-of-heavy-metals-in-bulk-deposition-across-china
#25
JOURNAL ARTICLE
Xin Ma, Zhipeng Sha, Yunzhe Li, Ruotong Si, Aohan Tang, Andreas Fangmeier, Xuejun Liu
With the rapid development of industries, agriculture, and urbanization (including transportation and population growth), there has been a significant alteration in the emission and atmospheric deposition of heavy metal pollutants. This has consequently given rise to a range of ecological and environmental health issues. In this study, we conducted a comprehensive two-year investigation on the temporal and spatial distribution characteristics of heavy metals in atmospheric deposition across China based on the Nationwide Nitrogen Deposition Monitoring Network (NNDMN)...
March 23, 2024: Science of the Total Environment
https://read.qxmd.com/read/38527532/mapping-nationwide-concentrations-of-sulfate-and-nitrate-in-ambient-pm-2-5-in-south-korea-using-machine-learning-with-ground-observation-data
#26
JOURNAL ARTICLE
Sang-Jin Lee, Jeong-Tae Ju, Jong-Jae Lee, Chang-Keun Song, Sun-A Shin, Hae-Jin Jung, Hye Jung Shin, Sung-Deuk Choi
Particulate matter (PM) is a major air pollutant in Northeast Asia, with frequent high PM episodes. To investigate the nationwide spatial distribution maps of PM2.5 and secondary inorganic aerosols in South Korea, prediction models for mapping SO4 2- and NO3 - concentrations in PM2.5 were developed using machine learning with ground-based observation data. Specifically, the random forest algorithm was used in this study to predict the SO4 2- and NO3 - concentrations at 548 air quality monitoring stations located within the representative radii of eight intensive air quality monitoring stations...
March 23, 2024: Science of the Total Environment
https://read.qxmd.com/read/38526714/influence-of-activator-ratios-and-concentration-on-the-physio-mechanical-and-microstructural-characteristics-of-the-geopolymers-derived-from-sandstone-processing-waste
#27
JOURNAL ARTICLE
Akash Samadhiya, Dipendu Bhunia, Sayantan Chakraborty, Mukund Lahoti
Natural stones have been utilized to meet various needs of human civilization since ancient times. The exploitation of any resource is associated with the production of redundant materials called wastes. Sandstone waste (SW) is one such waste obtained during the industrial processing of sandstones. Due to its siliceous composition, extensive yield, and disorganized dumping, noxious conditions related to land and human health are promoted. However, the lack of comprehensive engineering studies, mineralogical analysis, and design methodologies associated with the utilization of sandstone processing wastes restricted their applicability only to fillers or partial substitutes with pozzolans and traditional cement in meager volumes...
March 25, 2024: Environmental Science and Pollution Research International
https://read.qxmd.com/read/38525899/assessment-of-rapid-initiators-and-long-lasting-nutrients-for-developing-biological-permeable-reactive-barriers-to-treat-mine-contaminated-groundwater
#28
JOURNAL ARTICLE
Jun Zeng, Jinrong Qiu, Yutao Lei, Yuqi Qi, Rentao Liu, Chuanqi Jian, Na Liu, Yaoming Su
The formation of mine-contaminated groundwater as a result of acidic mine drainage from the oxidation of sulfur-containing minerals entering the groundwater. Biological permeable reactive barrier (Bio-PRB) technology is excellent for the remediation of mine-contaminated groundwater. Usually, the organic substrates utilized in Bio-PRB are a combination of rapid initiators, which are readily bioavailable, and long-lasting nutrients, which are more difficult to degrade. Herein, we investigated the effectiveness of three rapid initiators and three long-lasting nutrients to remove sulfate from simulated mine-contaminated groundwater via simulated column experiments...
March 25, 2024: Environmental Technology
https://read.qxmd.com/read/38525556/application-of-artificial-neural-network-ann-as-a-predictive-tool-for-the-removal-of-pharmaceutical-from-wastewater-streams-using-biochar-a-multifunctional-technology-for-environment-sustainability
#29
JOURNAL ARTICLE
Mohammed Saleem Mansoor, Asmita Mishra, David Lokhat, B C Meikap
This study investigates biochar as an attractive option for removing pharmaceuticals from wastewater streams utilizing data from various literature sources and also explores the sensitivity of the characteristics and implementation of biochar. ANN 1 was designed to determine the optimal biochar characteristics (Surface Area, Pore Volume) to achieve the maximum percentage removal of pharmaceuticals in wastewater streams. ANN 2 was developed to identify the optimal biomass feedstock composition, pyrolysis conditions (temperature and time), and chemical activation (acid or base) to produce the optimal biochar from ANN 1...
2024: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://read.qxmd.com/read/38525339/an-overview-of-the-ameliorative-efficacy-of-catharanthus-roseus-extract-against-cd-2-toxicity-implications-for-human-health-and-remediation-strategies
#30
REVIEW
Mohammad Hashim, Hussain Arif, Baby Tabassum, Shahnawaz Rehman, Priya Bajaj, Rekha Sirohi, Mohd Faizan Ali Khan
Rapid industrialization has led to an increase in cadmium pollution, a dangerously toxic heavy metal. Cadmium (Cd) is released into the environment through industrial processes and can contaminate air, water, and soil. This pollution poses a significant risk to human health and has become a pressing concern in many industrialized areas. Due to its extended half-life, it leads to a range of health problems, including hepato-nephritic toxicity, brain damage, and degenerative bone disorders. Intoxication alters various intracellular parameters, leading to inflammation, tissue injury, and oxidative stress within cells, which disrupts normal cellular functions and can eventually result in cell death...
2024: Frontiers in Public Health
https://read.qxmd.com/read/38524530/isolation-of-chromium-resistant-bacteria-from-tannery-waste-and-assessment-of-their-chromium-reducing-capabilities-a-bioremediation-approach
#31
JOURNAL ARTICLE
Roksana Khanam, Sheikh Abdullah Al Ashik, Umme Suriea, Shahin Mahmud
Every year different industries generate numerous toxic environmental polluting agents throughout the world. Among the polluting agents, chromium (Cr) toxicity is a great concern nowadays. It is continuously released in soil and water, causing environmental and health problems thereby raising several public health issues in developing countries like Bangladesh. The primary goal of this study was to provide a bioremediation option to reduce toxic hexavalent chromium to a less toxic trivalent form by isolating chromium resistant bacteria from Cr contaminated environments...
March 30, 2024: Heliyon
https://read.qxmd.com/read/38522545/organohalogen-compounds-in-a-hotspot-for-chemical-pollution-assessment-in-free-ranging-atlantic-spotted-dolphins-stenella-frontalis
#32
JOURNAL ARTICLE
Nara Oliveira-Ferreira, Bárbara Moura Reis Manhães, Elitieri Santos-Neto, Rafael Ramos Carvalho, Haydée Andrade Cunha, Alexandre Freitas Azevedo, Tatiana Lemos Bisi, José Lailson-Brito
The assessment of chemical pollution in free-ranging living mammals is viable using remote biopsies and portrays a comprehensive scenario of environmental health. The Southwestern Atlantic Ocean holds incredible biodiversity, but it is under the constant and invisible threat of persistent organic pollutants (POPs) of anthropogenic origin, such as pesticides, brominated flame retardants, and industrial-use compounds (e.g.., PCBs). Thus, this study aimed to assess the bioaccumulation of POPs (PCBs, DDTs, HCB, mirex and PBDEs) and natural organobromine compounds (MeO-BDEs) using gas-chromatography coupled to mass spectrometry in biopsy samples of Atlantic spotted dolphins (Stenella frontalis, n = 20) that inhabit and forage both inside and in adjacent areas to degraded (Guanabara Bay) and conserved (Ilha Grande Bay) coastal bays in the Southeastern Brazil...
March 22, 2024: Science of the Total Environment
https://read.qxmd.com/read/38522523/source-specific-probabilistic-health-risk-assessment-of-heavy-metals-in-surface-water-of-the-yangtze-river-basin
#33
JOURNAL ARTICLE
Xing Chen, Xinyi Fu, Guolian Li, Jiamei Zhang, Haibin Li, Fazhi Xie
The detrimental effects of heavy metal accumulation on both ecosystems and public health have raised widespread concern. Source-specific risk assessment is crucial for developing effective strategies to prevent and control heavy metal contamination in surface water. This study aims to investigate the contamination characteristics of heavy metals in the Yangtze River Basin, identifying the pollution sources, assessing the risk levels, and further evaluating the health risks to humans. The results indicated that the average concentrations of heavy metals were ranked as follows: zinc (Zn) > arsenic (As) > copper (Cu) > chromium (Cr) > cadmium (Cd) > nickel (Ni) > lead (Pb), with average concentrations of 38...
March 22, 2024: Science of the Total Environment
https://read.qxmd.com/read/38522230/source-emission-contributions-to-particulate-matter-and-ozone-and-their-health-impacts-in-southeast-asia
#34
JOURNAL ARTICLE
Yefu Gu, Tingting Fang, Steve Hung Lam Yim
Southeast Asia has been experiencing severe air pollution due to its substantial local emissions and transboundary air pollution (TAP), causing significant health impacts. While literature focused on air pollution episodes in Southeast Asia, we have yet to fully understand the contributions of local emission sectors and TAP to air quality in the region annually. Herein we employed air quality modeling with the species tagging method to first assess the contributions of source sectors and locations to fine particulate matter (PM2...
March 18, 2024: Environment International
https://read.qxmd.com/read/38521272/species-specific-profiles-of-per-and-polyfluoroalkyl-substances-pfas-in-small-coastal-sharks-along-the-south-atlantic-bight-of-the-united-states
#35
JOURNAL ARTICLE
Qaim Mehdi, Emily K Griffin, Juliette Esplugas, Jim Gelsleichter, Ashley S Galloway, Bryan S Frazier, Alina S Timshina, R Dean Grubbs, Keyla Correia, Camden G Camacho, John A Bowden
Per- and polyfluoroalkyl substances (PFAS) have gained widespread commercial use across the globe in various industrial and consumer products, such as textiles, firefighting foams, and surface coating materials. Studies have shown that PFAS exhibit a strong tendency to accumulate within aquatic food webs, primarily due to their high bioaccumulation potential and resistance to degradation. Despite such concerns, their impact on marine predators like sharks remains underexplored. This study aimed to investigate the presence of 34 PFAS in the plasma (n = 315) of four small coastal sharks inhabiting the South Atlantic Bight of the United States (U...
March 21, 2024: Science of the Total Environment
https://read.qxmd.com/read/38521254/innovative-tarantula-hair-inspired-washing-machine-filters-for-enhanced-microfiber-capture
#36
JOURNAL ARTICLE
Mahshab Sheraz, Seri Han, Kyung Eun Lee, Meltem Yanilmaz, Miyeon Kwon, Juhea Kim, Jaewoo Sim, Juran Kim
Aquatic environments are being polluted by microplastics primarily originating from the washing of synthetic textiles. Microfibers (MF), which are microplastics in synthetic fibers, are consistently introduced into the environment with each domestic laundry cycle. To address this issue, we developed a specialized MF capture "barbed filter" (BF) by transforming PET monofilaments of different diameters (0.4, 0.6, and 0.8 mm) into structures that closely resemble the characteristics of tarantula urticating hairs...
March 21, 2024: Science of the Total Environment
https://read.qxmd.com/read/38520809/can-arsenic-bioavailability-be-predicted-in-soils-using-in-vitro-gastro-intestinal-simulation
#37
JOURNAL ARTICLE
Yiming Sun, Kevin Jones, Zongquan Sun, Jialun Shen, Fanyang Bu, Fujun Ma, Qingbao Gu
Many gastrointestinal simulation methods have been used to predict bioavailability, but the suitability of different methods for the same metal(loid)s varies widely, which inevitably affects the accuracy of human health risk assessment. Arsenic is a common and important contaminant in many contaminated land situations. It can be readily absorbed and has teratogenic and mutagenic toxicity. Therefore, in this study, four the most commonly used in vitro simulation methods (the Physiologically Based Extraction Test (PBET), In Vitro Gastrointestinal Method (IVG), Soluble Bioavailability Research Consortium (SBRC), the Unified BARGE Method (UBM)) were tested against an in vivo animal live model, to evaluate their effectiveness for the prediction of soil As bioavailability in 10 industrially contaminated soils...
March 22, 2024: Ecotoxicology and Environmental Safety
https://read.qxmd.com/read/38519879/mercury-distribution-and-contamination-in-the-soils-of-the-mitrovica-region-republic-of-kosovo
#38
JOURNAL ARTICLE
Milihate Aliu, Robert Šajn, Trajče Stafilov
The study was carried out to define the distribution of mercury in surface soils in the Mitrovica region, Republic of Kosovo and to assess the level and extent of contamination. A total of 156 soil samples were collected from a depth of 5 cm at each grid point of 1.4 × 1.4 km in an area of 301.5 km2 . The mercury content was found to be between 0.02 mg/kg and 11.16 mg/kg. The average Hg content (0.49 mg/kg) exceeded the mean content in European (0...
March 22, 2024: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://read.qxmd.com/read/38519615/tracing-and-source-fingerprinting-of-metals-from-the-southern-coastal-sediments-in-bangladesh
#39
JOURNAL ARTICLE
Niger Sultana, Shamima Akther Eti, Md Lokman Hossain, Jianfeng Li, Mohammed Abdus Salam
Trace element pollution from anthropogenic sources is increasingly widespread. This pollution in terrestrial environments threatens agricultural crop production, while in aquatic environments, it threatens fish cultivation. The contamination of these crucial food sources raises significant concerns regarding food safety, security, and its potential adverse effects on human health. Coastal areas are particularly vulnerable to heavy metal pollution due to their proximity to industrial and urban centres, as well as their susceptibility to contamination from marine sources...
March 23, 2024: Environmental Science and Pollution Research International
https://read.qxmd.com/read/38518253/modulation-of-gut-microbial-metabolism-by-cyanidin-3-o-glucoside-in-mitigating-polystyrene-induced-colonic-inflammation-insights-from-16s-rrna-sequencing-and-metabolomics
#40
JOURNAL ARTICLE
Wen Chen, Xiaodong Zheng, Fujie Yan, Lizhou Xu, Xiang Ye
Microplastics derived from plastic waste have emerged as a pervasive environmental pollutant with potential transfer and accumulation through the food chain, thus posing risks to both ecosystems and human health. The gut microbiota, tightly intertwined with metabolic processes, exert substantial influences on host physiology by utilizing dietary compounds and generating bacterial metabolites such as tryptophan and bile acid. Our previous studies have demonstrated that exposure to microplastic polystyrene (PS) disrupts the gut microbiota and induces colonic inflammation...
March 22, 2024: Journal of Agricultural and Food Chemistry
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