Atmospheric black carbon observations and its valley-mountain dynamics: Eastern Cordillera of the Central Andes of Peru
Environ Pollut. 2024 May 8:124089. doi: 10.1016/j.envpol.2024.124089. Online ahead of print.ABSTRACTGlacial bodies in the Peruvian Andes Mountains store and supply freshwater to hundreds of thousands of people in central Peru. Atmospheric black carbon (BC) is known to accelerate melting of snow and ice, in addition to contributing to air pollution and the health of people. Currently there is limited understanding on the sources and temporal variability of BC in valley and mountain environments in Peru. To address this problem, this study combined surface observations of BC collected during 2022-2023 with WRF model simulati...
Source: Environmental Pollution - May 10, 2024 Category: Environmental Health Authors: Elver Villalobos-Puma Luis Suarez Stefania Gillardoni Ricardo Zubieta Daniel Martinez-Castro Andrea Miranda-Corzo Paolo Bonasoni Yamina Silva Source Type: research

Graphite-N reinforced sludge biochar electrode: A experimental and DFT theoretical analysis of efficient evolution and in-situ utilization of H < sub > 2 < /sub > O < sub > 2 < /sub >
Environ Pollut. 2024 May 8:124107. doi: 10.1016/j.envpol.2024.124107. Online ahead of print.ABSTRACTRational reuse of municipal sludge to produce electro-Fenton electrode can not only save resources, but also produce superior peroxide and degradation pollutants simultaneously. Herein, a novel electro-Fenton electrode derived from sludge biochar loaded on Ni foam (SBC@Ni) was constructed via high temperature pyrolysis and chemical coating for efficient H2O2 evolution and pollutant degradation. Systematic experiments and density functional theory calculations (DFT calculation) explained that the production of graphite C and ...
Source: Environmental Pollution - May 10, 2024 Category: Environmental Health Authors: Chenxi Li Xiaojie Qiu Huilin Wan Zehao Ma Ruotong Jin Yingxin Zhao Source Type: research

Metabolite correlation permutation after mice acute exposure to PM < sub > 2.5 < /sub > : Holistic exploration of toxicometabolomics by network analysis
In this study, following a single intratracheal instillation of multiple doses (0, 25, and 150 μg as the control, low, and high dose), non-targeted metabolomics was employed to evaluate the metabolic impact of PM2.5 across multiple tissues. PM2.5 induced tissue-specific and dose-dependent disturbances of metabolites and their pathways. The remarkable increase of both intra- and inter-tissue correlations was observed, with emphasis on the metabolism connectivity among lung, spleen, and heart; the tissues' functional specificity has marked their toxic modes. Beyond the inter-status comparison of the metabolite fold-changes,...
Source: Environmental Pollution - May 10, 2024 Category: Environmental Health Authors: Hao Chang Xi Zhang Zhonghua Lu Biling Gao Heqing Shen Source Type: research

PM < sub > 2.5 < /sub > -induced ferroptosis by Nrf2/Hmox1 signaling pathway led to inflammation in microglia
In this study, C57BL/6J mice were applied to evaluate the neurotoxicity of collected fine particulate matter (PM2.5), via oropharyngeal aspiration at two ambient equivalent concentrations. The Y-maze results showed that PM2.5 exposure in mice would lead to the damage in hippocampal-dependent working memory. In addition, cell neuroinflammation, microglial activation were detected in hippocampus of PM2.5-exposure mice. To confirm the underlying mechanism, the microarray assay was conducted to screen the differentially expressed genes (DEGs) in microglia after PM2.5 exposure, and the results indicated the enrichment of DEGs i...
Source: Environmental Pollution - May 10, 2024 Category: Environmental Health Authors: Haiyun Wei Chao Chen Fanglin Di Changhua Sun Xinzhi Wang Meng Sun Natong Liu Min Zhang Meng Li Jie Zhang Shuping Zhang Xue Liang Source Type: research

Spatiotemporal variations in marine macro-litter pollution along the shoreline of Koh Mun Nai, an uninhabited island in the Gulf of Thailand
Environ Pollut. 2024 May 8:124098. doi: 10.1016/j.envpol.2024.124098. Online ahead of print.ABSTRACTDespite a recent ambitious plan to improve waste management in Thailand, few studies have monitored the impact of these policies on beached marine litter. Here, we assessed weekly the amounts and composition of stranded macro-litter (≥2.5 cm) on five beaches from an uninhabited island in Thailand during one year. A total of 24,407 items (391.86 kg) yielded a mean abundance of 3.18±11.39 items.m-2 (52.75±204.68 g.m-2), with plastic being the most abundant marine litter (48% of the total number). The overall Clean Coast In...
Source: Environmental Pollution - May 10, 2024 Category: Environmental Health Authors: Coline Monchanin Matthias Desmolles Kilian Rivetta Suriyan Saramul Chawalit Charoenpong Rahul Mehrotra Source Type: research

Revealing microbial community assembly patterns and succession process in the blackening process of black-odor water
Environ Pollut. 2024 May 8:124129. doi: 10.1016/j.envpol.2024.124129. Online ahead of print.ABSTRACTHuman-imported pollutants could induce water black, changing microbial community structure and function. Employed 16S rRNA high-throughput sequencing, field-scale investigations and laboratory-scale experiments were successively conducted to reveal mechanistic insights into microbial community assembly and succession of black-odor waters (BOWs). In the field-scale investigation, livestock breeding wastewater (56.7 ± 3.2%) was the most critical microbial source. Moreover, fermentation (27.1±4.4%) was found to be the dominan...
Source: Environmental Pollution - May 10, 2024 Category: Environmental Health Authors: Zhangmu Jing Qingqian Li Jinxia Lu Jiwei Ma Fanjin Ye Shengqiang Tu Bin Dong Xiaoling Liu Hongjie Gao Source Type: research

Diel Variations of Airborne Microbes and Antibiotic Resistance Genes in Response to Urban PM < sub > 2.5 < /sub > Chemical Properties During the Heating Season
This study explored the interactions between toxic components and microbial communities during the heating period to understand the variations in ARGs. Bacterial and fungal communities showed a higher susceptibility to diel variations in PM2.5 compared to their chemical properties. Mantel tests revealed that chemical properties and microbial community interactions contribute differently to ARG variations, both directly and indirectly, during circadian fluctuations. Our findings highlight that, during the daytime, the enrichment of pathogenic microorganisms and ARGs increases the risk of PM2.5 toxicity. Conversely, during t...
Source: Environmental Pollution - May 10, 2024 Category: Environmental Health Authors: Kangbo Tong Yupeng He Yue Wei Yang Yun Nan Sang Source Type: research

Regional impact assessment of air quality improvement: The air quality lifecourse assessment tool (AQ-LAT) for the West Midlands combined authority (WMCA)
Environ Pollut. 2024 Apr 29:123871. doi: 10.1016/j.envpol.2024.123871. Online ahead of print.ABSTRACTPoor air quality is the largest environmental health risk in England. In the West Midlands, UK, ∼2.9 million people are affected by air pollution with an average loss in life expectancy of up to 6 months. The 2021 Environment Act established a legal framework for local authorities in England to develop regional air quality plans, generating a policy need for predictive environmental impact assessment tools. In this context, we developed a novel Air Quality Lifecourse Assessment Tool (AQ-LAT) to estimate electoral ward-lev...
Source: Environmental Pollution - May 10, 2024 Category: Environmental Health Authors: James Hall Jian Zhong Sue Jowett Andrea Mazzeo G Neil Thomas John R Bryson Steve Dewar Nadia Inglis Mark Wolstencroft Catherine Muller William Bloss Roy Harrison Suzanne Bartington Source Type: research

Atmospheric black carbon observations and its valley-mountain dynamics: Eastern Cordillera of the Central Andes of Peru
Environ Pollut. 2024 May 8:124089. doi: 10.1016/j.envpol.2024.124089. Online ahead of print.ABSTRACTGlacial bodies in the Peruvian Andes Mountains store and supply freshwater to hundreds of thousands of people in central Peru. Atmospheric black carbon (BC) is known to accelerate melting of snow and ice, in addition to contributing to air pollution and the health of people. Currently there is limited understanding on the sources and temporal variability of BC in valley and mountain environments in Peru. To address this problem, this study combined surface observations of BC collected during 2022-2023 with WRF model simulati...
Source: Environmental Pollution - May 10, 2024 Category: Environmental Health Authors: Elver Villalobos-Puma Luis Suarez Stefania Gillardoni Ricardo Zubieta Daniel Martinez-Castro Andrea Miranda-Corzo Paolo Bonasoni Yamina Silva Source Type: research

Graphite-N reinforced sludge biochar electrode: A experimental and DFT theoretical analysis of efficient evolution and in-situ utilization of H < sub > 2 < /sub > O < sub > 2 < /sub >
Environ Pollut. 2024 May 8:124107. doi: 10.1016/j.envpol.2024.124107. Online ahead of print.ABSTRACTRational reuse of municipal sludge to produce electro-Fenton electrode can not only save resources, but also produce superior peroxide and degradation pollutants simultaneously. Herein, a novel electro-Fenton electrode derived from sludge biochar loaded on Ni foam (SBC@Ni) was constructed via high temperature pyrolysis and chemical coating for efficient H2O2 evolution and pollutant degradation. Systematic experiments and density functional theory calculations (DFT calculation) explained that the production of graphite C and ...
Source: Environmental Pollution - May 10, 2024 Category: Environmental Health Authors: Chenxi Li Xiaojie Qiu Huilin Wan Zehao Ma Ruotong Jin Yingxin Zhao Source Type: research

Metabolite Correlation Permutation after Mice Acute Exposure to PM < sub > 2.5 < /sub > : Holistic Exploration of Toxicometabolomics by Network Analysis
In this study, following a single intratracheal instillation of multiple doses (0, 25, and 150 μg as the control, low, and high dose), non-targeted metabolomics was employed to evaluate the metabolic impact of PM2.5 across multiple tissues. PM2.5 induced tissue-specific and dose-dependent disturbances of metabolites and their pathways. The remarkable increase of both intra- and inter-tissue correlations was observed, with emphasis on the metabolism connectivity among lung, spleen, and heart; the tissues' functional specificity has marked their toxic modes. Beyond the inter-status comparison of the metabolite fold-changes,...
Source: Environmental Pollution - May 10, 2024 Category: Environmental Health Authors: Hao Chang Xi Zhang Zhonghua Lu Biling Gao Heqing Shen Source Type: research

PM < sub > 2.5 < /sub > -induced ferroptosis by Nrf2/Hmox1 signaling pathway led to inflammation in microglia
In this study, C57BL/6J mice were applied to evaluate the neurotoxicity of collected fine particulate matter (PM2.5), via oropharyngeal aspiration at two ambient equivalent concentrations. The Y-maze results showed that PM2.5 exposure in mice would lead to the damage in hippocampal-dependent working memory. In addition, cell neuroinflammation, microglial activation were detected in hippocampus of PM2.5-exposure mice. To confirm the underlying mechanism, the microarray assay was conducted to screen the differentially expressed genes (DEGs) in microglia after PM2.5 exposure, and the results indicated the enrichment of DEGs i...
Source: Environmental Pollution - May 10, 2024 Category: Environmental Health Authors: Haiyun Wei Chao Chen Fanglin Di Changhua Sun Xinzhi Wang Meng Sun Natong Liu Min Zhang Meng Li Jie Zhang Shuping Zhang Xue Liang Source Type: research

Spatiotemporal variations in marine macro-litter pollution along the shoreline of Koh Mun Nai, an uninhabited island in the Gulf of Thailand
Environ Pollut. 2024 May 8:124098. doi: 10.1016/j.envpol.2024.124098. Online ahead of print.ABSTRACTDespite a recent ambitious plan to improve waste management in Thailand, few studies have monitored the impact of these policies on beached marine litter. Here, we assessed weekly the amounts and composition of stranded macro-litter (≥2.5 cm) on five beaches from an uninhabited island in Thailand during one year. A total of 24,407 items (391.86 kg) yielded a mean abundance of 3.18±11.39 items.m-2 (52.75±204.68 g.m-2), with plastic being the most abundant marine litter (48% of the total number). The overall Clean Coast In...
Source: Environmental Pollution - May 10, 2024 Category: Environmental Health Authors: Coline Monchanin Matthias Desmolles Kilian Rivetta Suriyan Saramul Chawalit Charoenpong Rahul Mehrotra Source Type: research

Children's Exposure to Brominated Flame Retardants in the Home: The TESIE Study
Environ Pollut. 2024 May 7:124110. doi: 10.1016/j.envpol.2024.124110. Online ahead of print.ABSTRACTDue to differences in chemical properties and half-lives, best practices for exposure assessment may differ for legacy versus novel brominated flame retardants (BFRs). Our objective was to identify the environment matrix that best predicted biomarkers of children's BFR exposures. Paired samples were collected from children, aged 3-6 years, and their homes including dust, a small piece of polyurethane foam from the furniture, and a handwipe and wristband from each child. Biological samples collected included serum, which was ...
Source: Environmental Pollution - May 9, 2024 Category: Environmental Health Authors: Kate Hoffman Xuening Tang Ellen M Cooper Stephanie C Hammel Andreas Sjodin Allison L Phillips Thomas F Webster Heather M Stapleton Source Type: research

Tracking Bioaerosol Exposure among Municipal Solid Waste Workers Using Hematological and Inflammatory Biomarkers
In this study, we investigated the potential association between exposure to bioaerosols and inflammatory biomarkers among municipal solid waste workers (MSWWs) at both the landfill site and the municipal solid waste transfer station (MSWTS), in comparison to a control group without exposure. Air sampling was conducted at six points around the landfill, two points at the MSWTS, and one point in a public park (as a control area) during the spring and summer of 2019. The results of our study revealed that airborne pathogens were highly prevalent at the sampling points, especially in the active zone and leachate collection po...
Source: Environmental Pollution - May 9, 2024 Category: Environmental Health Authors: Ashraf Mazaheri Tehrani Nima Berijani Sajjad Hajiketabi Mohammadtaghi Samadi Source Type: research