Cyanopeptides occurrence and diversity in a brazilian tropical reservoir: exploring relationships with water quality
This study aimed (i) to determine the dynamics of MCs and other cyanopeptides in a tropical reservoir, (ii) to investigate the correlation between peptides and potential cyanotoxin producers (iii) identifying the possible abiotic factors that influence the peptides. We analyzed, monthly, eight MC variants (MC-RR, -LA, -LF, -LR, -LW, -YR, [D-Asp3]-RR and [D-Asp3]-LR) and other peptides in 47 water samples collected monthly, all season long, from two sampling sites in a tropical eutrophic freshwater reservoir, in southeastern Brazil. The cyanopeptides were assessed by liquid chromatography-tandem mass spectrometry (LC-MS/MS)...
Source: Environmental Pollution - April 30, 2024 Category: Environmental Health Authors: Renan Silva Arruda Fernanda Rios Jacinavicius Nat ália Pessoa Noyma Erick Drummond Davi Almeida Barreto L úcia Helena Sampaio da Silva Vera Lucia Huszar Ernani Pinto Miquel L ürling Marcelo Manzi Marinho Source Type: research

Back-trajectory analyses for evaluating the transboundary transport effect to the aerosol pollution in South Korea
This study performed a back-trajectory analysis to determine the influence of transboundary transport on the extent of aerosol pollution in South Korea, based on 5-year PM2.5 measurements (2015‒2019) in five cities covering South Korea. A transboundary transport case was selected if a back trajectory passed over a dedicated region (BOX 1 and BOX 2) in the Yellow Sea. First, we found that the frequency of transboundary transport largely increases in the high pollution case, and this pattern is almost consistent for all months and all five cities, indicating the importance of investigating the horizontal direction of air m...
Source: Environmental Pollution - April 28, 2024 Category: Environmental Health Authors: Ja-Ho Koo Donghee Lee Hyejin Bae Taegyung Lee Seong Gyun Na Sang-Wook Yeh Jinsoo Park Minju Yeo Source Type: research

A field study of a novel permeable-reactive-biobarrier to remediate chlorinated hydrocarbons contaminated groundwater
Environ Pollut. 2024 Apr 26:124042. doi: 10.1016/j.envpol.2024.124042. Online ahead of print.ABSTRACTChlorinated hydrocarbons (CHs) pose significant health risks due to their suspected carcinogenicity, necessitating urgent remediation efforts. While the combination of zero-valent iron (Fe0) and microbial action shows promise in mitigating CH contamination, field studies on this approach are scarce. We devised a novel three-layer permeable reactive barrier (PRB) material incorporating Fe0 and coconut shell biochar, effectively implemented at a typical CH-contaminated site. Field monitoring data revealed conducive conditions...
Source: Environmental Pollution - April 28, 2024 Category: Environmental Health Authors: Cuicui Liu Xiaohui Chen Shui Wang Yongming Luo Wenchao Du Ying Yin Hongyan Guo Source Type: research

Multiple xenoestrogen air pollutants and breast cancer risk: statistical approaches to investigate combined exposures effect
This study makes a major contribution to the understanding of the joint effects of air pollution.PMID:38679129 | DOI:10.1016/j.envpol.2024.124043 (Source: Environmental Pollution)
Source: Environmental Pollution - April 28, 2024 Category: Environmental Health Authors: Amina Amadou Camille Giampiccolo Fabiola Bibi Ngaleu Delphine Praud Thomas Coudon L ény Grassot Elodie Faure Florian Couvidat Pauline Frenoy Gianluca Severi Francesca Romana Mancini Pascal Roy B éatrice Fervers Source Type: research

Polystyrene microplastics enhance microcystin-LR-induced cardiovascular toxicity and oxidative stress in zebrafish embryos
This study highlights the potential environmental risks of the co-existence of MC-LR and PS-MPs/NPs for fetal health, particularly cardiovascular development.PMID:38679130 | DOI:10.1016/j.envpol.2024.124022 (Source: Environmental Pollution)
Source: Environmental Pollution - April 28, 2024 Category: Environmental Health Authors: Yuchun Xiao Liwen Hu Jiayao Duan Huimin Che Wenxin Wang Yuan Yuan Jiayi Xu Daojun Chen Sujuan Zhao Source Type: research

A new simple index for characterizing the labile heavy metal concentration in soil by diffusive gradients in thin films technique
Environ Pollut. 2024 Apr 26:124061. doi: 10.1016/j.envpol.2024.124061. Online ahead of print.ABSTRACTDiffusive gradients in thin films technique (DGT) is recognized as a more reliable method for determining labile heavy metal (HM) concentration in soil than traditional destructive methods. However, the current DGT measurement index, CDGT, theoretically underestimates the true labile concentration (Clabile) of HMs in soil and lacks direct comparability with the conventional soil HM content indices due to unit differences. Here, we proposed CDGT-W, a new simple index which is defined as the HM accumulation in the binding lay...
Source: Environmental Pollution - April 28, 2024 Category: Environmental Health Authors: Yang-Xiao-Xiao Shi Hai-Rong Xu Jia Shen Lin-Yu Guo Jing Yan Jun Jiang Zhi-Neng Hong Ren-Kou Xu Source Type: research

Back-trajectory analyses for evaluating the transboundary transport effect to the aerosol pollution in South Korea
This study performed a back-trajectory analysis to determine the influence of transboundary transport on the extent of aerosol pollution in South Korea, based on 5-year PM2.5 measurements (2015‒2019) in five cities covering South Korea. A transboundary transport case was selected if a back trajectory passed over a dedicated region (BOX 1 and BOX 2) in the Yellow Sea. First, we found that the frequency of transboundary transport largely increases in the high pollution case, and this pattern is almost consistent for all months and all five cities, indicating the importance of investigating the horizontal direction of air m...
Source: Environmental Pollution - April 28, 2024 Category: Environmental Health Authors: Ja-Ho Koo Donghee Lee Hyejin Bae Taegyung Lee Seong Gyun Na Sang-Wook Yeh Jinsoo Park Minju Yeo Source Type: research

A field study of a novel permeable-reactive-biobarrier to remediate chlorinated hydrocarbons contaminated groundwater
Environ Pollut. 2024 Apr 26:124042. doi: 10.1016/j.envpol.2024.124042. Online ahead of print.ABSTRACTChlorinated hydrocarbons (CHs) pose significant health risks due to their suspected carcinogenicity, necessitating urgent remediation efforts. While the combination of zero-valent iron (Fe0) and microbial action shows promise in mitigating CH contamination, field studies on this approach are scarce. We devised a novel three-layer permeable reactive barrier (PRB) material incorporating Fe0 and coconut shell biochar, effectively implemented at a typical CH-contaminated site. Field monitoring data revealed conducive conditions...
Source: Environmental Pollution - April 28, 2024 Category: Environmental Health Authors: Cuicui Liu Xiaohui Chen Shui Wang Yongming Luo Wenchao Du Ying Yin Hongyan Guo Source Type: research

Multiple xenoestrogen air pollutants and breast cancer risk: statistical approaches to investigate combined exposures effect
This study makes a major contribution to the understanding of the joint effects of air pollution.PMID:38679129 | DOI:10.1016/j.envpol.2024.124043 (Source: Environmental Pollution)
Source: Environmental Pollution - April 28, 2024 Category: Environmental Health Authors: Amina Amadou Camille Giampiccolo Fabiola Bibi Ngaleu Delphine Praud Thomas Coudon L ény Grassot Elodie Faure Florian Couvidat Pauline Frenoy Gianluca Severi Francesca Romana Mancini Pascal Roy B éatrice Fervers Source Type: research

Polystyrene microplastics enhance microcystin-LR-induced cardiovascular toxicity and oxidative stress in zebrafish embryos
This study highlights the potential environmental risks of the co-existence of MC-LR and PS-MPs/NPs for fetal health, particularly cardiovascular development.PMID:38679130 | DOI:10.1016/j.envpol.2024.124022 (Source: Environmental Pollution)
Source: Environmental Pollution - April 28, 2024 Category: Environmental Health Authors: Yuchun Xiao Liwen Hu Jiayao Duan Huimin Che Wenxin Wang Yuan Yuan Jiayi Xu Daojun Chen Sujuan Zhao Source Type: research

A new simple index for characterizing the labile heavy metal concentration in soil by diffusive gradients in thin films technique
Environ Pollut. 2024 Apr 26:124061. doi: 10.1016/j.envpol.2024.124061. Online ahead of print.ABSTRACTDiffusive gradients in thin films technique (DGT) is recognized as a more reliable method for determining labile heavy metal (HM) concentration in soil than traditional destructive methods. However, the current DGT measurement index, CDGT, theoretically underestimates the true labile concentration (Clabile) of HMs in soil and lacks direct comparability with the conventional soil HM content indices due to unit differences. Here, we proposed CDGT-W, a new simple index which is defined as the HM accumulation in the binding lay...
Source: Environmental Pollution - April 28, 2024 Category: Environmental Health Authors: Yang-Xiao-Xiao Shi Hai-Rong Xu Jia Shen Lin-Yu Guo Jing Yan Jun Jiang Zhi-Neng Hong Ren-Kou Xu Source Type: research

A methodological review of compound-specific radiocarbon analysis for polycyclic aromatic hydrocarbons in environmental matrices
This study aims to help environmental geoscientists understand the technical process of 14C analysis of PAHs and inspire new scientific questions related to environmental science. To our knowledge, this is the first comprehensive review of the technical method of compound-specific 14C analysis for PAHs.PMID:38677454 | DOI:10.1016/j.envpol.2024.124050 (Source: Environmental Pollution)
Source: Environmental Pollution - April 27, 2024 Category: Environmental Health Authors: Yu Fu Rui Zhang Shaopeng Rong Yuling Wu Ying Wu Miaolei Ya Source Type: research

Household carbon monoxide (CO) concentrations in a large African city: an unquantified public health burden?
Environ Pollut. 2024 Apr 25:124054. doi: 10.1016/j.envpol.2024.124054. Online ahead of print.ABSTRACTCarbon monoxide (CO) is a poisonous gas produced by incomplete combustion of carbon-based fuels that is linked to mortality and morbidity. Household air pollution from burning fuels on poorly ventilated stoves can lead to high concentrations of CO in homes. There are few datasets available on household concentrations of CO in urban areas of sub-Saharan African countries. CO was measured every minute over 24 hours in a sample of homes in Nairobi, Kenya. Data on household characteristics were gathered by questionnaire. Metric...
Source: Environmental Pollution - April 27, 2024 Category: Environmental Health Authors: F Orina E Amukoye C Bowyer J Chakaya D Das G Devereux R Dobson U Dragosits C Gray R Kiplimo M Lesosky M Loh H Meme K Mortimer A Ndombi C Pearson H Price M Twigg S West S Semple Source Type: research

Mechanism of microplastics effects on the purification of heavy metals in piggery effluents by microalgae
This study aims to investigate the influence of Cu2+ (2 mg/L) and Zn2+ (2 mg/L), two prevalent heavy metals found in piggery wastewater, on their removal by microalgae (Desmodesmus sp. CHX1) in the presence of four types of MPs: polyethylene (PE), polyvinyl chloride (PVC), polypropylene (PP), and polyethylene terephthalate (PET). The results revealed that smaller particle size MPs promoted chlorophyll accumulation, while larger particle size inhibits it. Additionally, higher concentrations of MPs promoted chlorophyll accumulation, while lower concentrations inhibited it. As for heavy metals, the presence of microplastics r...
Source: Environmental Pollution - April 27, 2024 Category: Environmental Health Authors: Huimin Wang Longzao Luo Binghua Yan Shuang Luo Source Type: research

Decolorization and degradation of crystal violet dye by electron beam radiation: Performance, degradation pathways, and synergetic effect with peroxymonosulfate
In this study, crystal violet (CV) was selected as representative cationic triphenylmethane dye, the decolorization and degradation performance by electron beam radiation technology was systematically evaluated. The results showed that CV can be efficiently decolorized and mineralized by radiation, and its degradation kinetics followed the first-order kinetic model. The effect of inorganic anions and chelating agents commonly existed in dye-containing wastewater on CV decolorization and total organic carbon (TOC) removal was explored. Quenching experiments, density functional theory (DFT) calculation and high performance l...
Source: Environmental Pollution - April 27, 2024 Category: Environmental Health Authors: Xinyu Liu Jianlong Wang Source Type: research