Robust Nanoparticles Growth in the Interior of Porous Sponges for Efficient Dye Adsorption and Emulsion Separation
Chemosphere. 2024 Apr 22:142100. doi: 10.1016/j.chemosphere.2024.142100. Online ahead of print.ABSTRACTEmulsified oils and dye contaminants already pose a huge threat to global ecosystems and human health. It is a significant research topic to develop efficient, rapid, versatile methods for emulsion separation and dye adsorption. The membrane material modified with common methods only modified the outer surface of the membrane, while the interior is hardly fully decorated. In this investigation, a solvent exchange method was used to in situ grow nanoparticles in the interior of a porous sponge. These nanoparticles were obt...
Source: Chemosphere - April 24, 2024 Category: Chemistry Authors: Xiaojuan Yan Tianyu Wang Hongkun Yang Ying Chen Ning Wang Ying Sui Guanghui Gao Source Type: research
AhR agonists screening and identification in indoor dust based on non-target chemical analysis by GC-Q-TOFMS and biological effect evaluation referring to ToxCast/Tox21 database
Chemosphere. 2024 Apr 22:142108. doi: 10.1016/j.chemosphere.2024.142108. Online ahead of print.ABSTRACTNumerous studies reported the concentration of agonists of aryl hydrocarbon receptor (AhR) in indoor dust by target chemical analysis or the biological effects of activating the AhR by indoor extracts, but the major AhR agonists identification in indoor dust were rarely researched. In the present study, the indoor dust samples were collected for 7-ethoxyresorufin O-deethylase (EROD) assay and both non-targeted and targeted chemical analysis for AhR agonists by gas chromatography quadrupole time-of-flight mass spectrometry...
Source: Chemosphere - April 24, 2024 Category: Chemistry Authors: Chaoli Yuan Yuqi Zeng Xiaomin Yan Jiwen Luo Lixuan Zeng Yu Bon Man Bingyan Lan Yuan Kang Source Type: research
Fabrication of Engineered Biochar for Remediation of Toxic Contaminants in Soil Matrices and Soil Valorization
Chemosphere. 2024 Apr 21:142101. doi: 10.1016/j.chemosphere.2024.142101. Online ahead of print.ABSTRACTBiochar has emerged as an efficacious green material for remediation of a wide spectrum of environmental pollutants. Biochar has excellent characteristics and can be used to reduce the bioavailability and leachability of emerging pollutants in soil through adsorption and other physico-chemical reactions. This paper systematically reviewed previous researches on application of biochar/ engineered biochar for removal of soil contaminants, and underlying adsorption mechanism. Engineered biochar are derivatives of pristine bi...
Source: Chemosphere - April 23, 2024 Category: Chemistry Authors: Riti Thapar Kapoor Jakub Zdarta Source Type: research
Temperature influence on the sensitivity of Artemia franciscana to globally used pesticides - Oxyfluorfen and copper
Chemosphere. 2024 Apr 21;357:142092. doi: 10.1016/j.chemosphere.2024.142092. Online ahead of print.ABSTRACTClimate change further the world's human population increase is a mainstream political issue, and it's critical to search for solutions to produce enough food to feed everyone. Pesticides and fertilizers have been used as an easy solution to prevent pests and increase food production. Nevertheless, their overuse has dangerous effects on the ecosystems and communities. Oxyfluorfen (Oxy) and copper (Cu) based formulations are used as pesticides and widely applied on agricultural fields for crop protection. However, they...
Source: Chemosphere - April 23, 2024 Category: Chemistry Authors: A F Mesquita F J M Gon çalves A M M Gon çalves Source Type: research
RARE-EARTH elements in the topsoils of a Russian industrial city: Sources and human health risk assessment
This study investigates the potential sources and human health risks of REEs contained in the topsoils of the industrial Russian city of Chelyabinsk. The study also takes into account natural sources of REE as the city is located on the border of granites (Urals) and sedimentary rocks (Western Siberia). We analyzed the concentration and distribution of REEs in the soils of four types of locations: residential courtyards, city parks, roadsides, and industrial locations. The total REE concentrations ranged from 44 to 255 mg/kg, with average concentrations of 140, 124, 113 and 89 mg/kg in the courtyards, roadsides, industrial...
Source: Chemosphere - April 23, 2024 Category: Chemistry Authors: Tatyana Krupnova Olga Rakova Valeria Simakhina Source Type: research
Low-intensity alternating ventilation achieves effective humification during food waste composting by enhancing the intensity of microbial interaction and carbon metabolism
This study set three experimental groups with varying ventilation intensities based on self-made alternating ventilation composting reactor (AL2: 0.2 L·kg-1 DM·min-1; AL4: 0.4 L·kg-1 DM·min-1; AL6: 0.6 L·kg-1 DM·min-1) to explore the optimal alternating ventilation rate. The results showed that the cumulative ammonia emission of AL2 group reduced by 25.13% and 12.59% compared to the AL4 and AL6 groups. The humification degree of the product was 1.18 times and 1.25 times higher than the other two groups. AL2 increased the relative abundance of the core species Saccharomonospora, thereby strengthening microbial interac...
Source: Chemosphere - April 23, 2024 Category: Chemistry Authors: Lin Zhu Chunxu Tan Xiaohan Wang Liyuan Liu Chifei Dong Zhenyu Qi Meng Zhang Baolan Hu Source Type: research
Role of low-proportion, hydrophobic dissolved organic matter components in inhibiting methylmercury uptake by phytoplankton
In this study, we employed a widely-used resin fractionation approach to separate and classify DOM derived from algae (AOM) and natural rivers (NOM) into distinct components: strongly hydrophobic, weakly hydrophobic, and hydrophilic fractions. We conduct a comparative analysis of different DOM components using a combination of spectroscopy and mass spectrometry techniques, aiming to identify their impact on MeHg uptake by Microcystis elabens, a prevalent alga in freshwater environments. We found that the hydrophobic components had exhibited more pronounced spectral characteristics associated with the protein structures whi...
Source: Chemosphere - April 23, 2024 Category: Chemistry Authors: Zhike Li Zhengyu Wu Shao Bo Jie Chi Xiaoyu Cui Wei He Xiaomei Cui Yiwen Liu Yingxin Zhao Yindong Tong Source Type: research
Effects of salinity on behavior and reproductive toxicity of BPA in adult marine medaka
In this study, we exposed marine medaka (Oryzias melastigma) to BPA at different salinities (0 psμ, 15 psμ, and 30 psμ) for 70days to investigate the toxic effects. At 0 psμ salinity, BPA had an inhibitory effect on the swimming behavior of female medaka. At 15 psμ salinity, exposure to BPA resulted in necrotic cells in the ovaries but not on the spermatozoa. In addition, BPA exposure changed the transcript levels of genes related to the nervous system (gap43, elavl3, gfap, mbpa, and α-tubulin) and the hypothalamic-pituitary-gonadal (HPG) axis (fshr, lhr, star, arα, cyp11a, cyp17a1, cyp19a, and erα); the expression...
Source: Chemosphere - April 23, 2024 Category: Chemistry Authors: Zuchun Chen Xueyou Li Jiahao Gao Yue Liu Ning Zhang Yusong Guo Zhongduo Wang Zhongdian Dong Source Type: research
Corrigendum to "A comparative study of response surface methodology and artificial neural network based algorithm genetic for modeling and optimization of EP/US/GAC oxidation process in dexamethasone degradation: Application for real wastewater, electrical energy consumption" [Chemosphere 349 (2024) 140832]
Chemosphere. 2024 Apr 22:142032. doi: 10.1016/j.chemosphere.2024.142032. Online ahead of print.NO ABSTRACTPMID:38653652 | DOI:10.1016/j.chemosphere.2024.142032 (Source: Chemosphere)
Source: Chemosphere - April 23, 2024 Category: Chemistry Authors: Mehdi Salari Ahmad Alahabadi Abolfazl Rahmani-Sani Mohammad Miri Mohsen Yazdani-Aval Hadi Lotfi Mohammad Hossien Saghi Ayoob Rastegar Mohammad Noori Sepehr Mohammad Darvishmotevalli Source Type: research
Fabrication of Engineered Biochar for Remediation of Toxic Contaminants in Soil Matrices and Soil Valorization
Chemosphere. 2024 Apr 21:142101. doi: 10.1016/j.chemosphere.2024.142101. Online ahead of print.ABSTRACTBiochar has emerged as an efficacious green material for remediation of a wide spectrum of environmental pollutants. Biochar has excellent characteristics and can be used to reduce the bioavailability and leachability of emerging pollutants in soil through adsorption and other physico-chemical reactions. This paper systematically reviewed previous researches on application of biochar/ engineered biochar for removal of soil contaminants, and underlying adsorption mechanism. Engineered biochar are derivatives of pristine bi...
Source: Chemosphere - April 23, 2024 Category: Chemistry Authors: Riti Thapar Kapoor Jakub Zdarta Source Type: research
Temperature influence on the sensitivity of Artemia franciscana to globally used pesticides - Oxyfluorfen and copper
Chemosphere. 2024 Apr 21;357:142092. doi: 10.1016/j.chemosphere.2024.142092. Online ahead of print.ABSTRACTClimate change further the world's human population increase is a mainstream political issue, and it's critical to search for solutions to produce enough food to feed everyone. Pesticides and fertilizers have been used as an easy solution to prevent pests and increase food production. Nevertheless, their overuse has dangerous effects on the ecosystems and communities. Oxyfluorfen (Oxy) and copper (Cu) based formulations are used as pesticides and widely applied on agricultural fields for crop protection. However, they...
Source: Chemosphere - April 23, 2024 Category: Chemistry Authors: A F Mesquita F J M Gon çalves A M M Gon çalves Source Type: research
RARE-EARTH elements in the topsoils of a Russian industrial city: Sources and human health risk assessment
This study investigates the potential sources and human health risks of REEs contained in the topsoils of the industrial Russian city of Chelyabinsk. The study also takes into account natural sources of REE as the city is located on the border of granites (Urals) and sedimentary rocks (Western Siberia). We analyzed the concentration and distribution of REEs in the soils of four types of locations: residential courtyards, city parks, roadsides, and industrial locations. The total REE concentrations ranged from 44 to 255 mg/kg, with average concentrations of 140, 124, 113 and 89 mg/kg in the courtyards, roadsides, industrial...
Source: Chemosphere - April 23, 2024 Category: Chemistry Authors: Tatyana Krupnova Olga Rakova Valeria Simakhina Source Type: research
Low-intensity alternating ventilation achieves effective humification during food waste composting by enhancing the intensity of microbial interaction and carbon metabolism
This study set three experimental groups with varying ventilation intensities based on self-made alternating ventilation composting reactor (AL2: 0.2 L·kg-1 DM·min-1; AL4: 0.4 L·kg-1 DM·min-1; AL6: 0.6 L·kg-1 DM·min-1) to explore the optimal alternating ventilation rate. The results showed that the cumulative ammonia emission of AL2 group reduced by 25.13% and 12.59% compared to the AL4 and AL6 groups. The humification degree of the product was 1.18 times and 1.25 times higher than the other two groups. AL2 increased the relative abundance of the core species Saccharomonospora, thereby strengthening microbial interac...
Source: Chemosphere - April 23, 2024 Category: Chemistry Authors: Lin Zhu Chunxu Tan Xiaohan Wang Liyuan Liu Chifei Dong Zhenyu Qi Meng Zhang Baolan Hu Source Type: research
Role of low-proportion, hydrophobic dissolved organic matter components in inhibiting methylmercury uptake by phytoplankton
In this study, we employed a widely-used resin fractionation approach to separate and classify DOM derived from algae (AOM) and natural rivers (NOM) into distinct components: strongly hydrophobic, weakly hydrophobic, and hydrophilic fractions. We conduct a comparative analysis of different DOM components using a combination of spectroscopy and mass spectrometry techniques, aiming to identify their impact on MeHg uptake by Microcystis elabens, a prevalent alga in freshwater environments. We found that the hydrophobic components had exhibited more pronounced spectral characteristics associated with the protein structures whi...
Source: Chemosphere - April 23, 2024 Category: Chemistry Authors: Zhike Li Zhengyu Wu Shao Bo Jie Chi Xiaoyu Cui Wei He Xiaomei Cui Yiwen Liu Yingxin Zhao Yindong Tong Source Type: research
Effects of salinity on behavior and reproductive toxicity of BPA in adult marine medaka
In this study, we exposed marine medaka (Oryzias melastigma) to BPA at different salinities (0 psμ, 15 psμ, and 30 psμ) for 70days to investigate the toxic effects. At 0 psμ salinity, BPA had an inhibitory effect on the swimming behavior of female medaka. At 15 psμ salinity, exposure to BPA resulted in necrotic cells in the ovaries but not on the spermatozoa. In addition, BPA exposure changed the transcript levels of genes related to the nervous system (gap43, elavl3, gfap, mbpa, and α-tubulin) and the hypothalamic-pituitary-gonadal (HPG) axis (fshr, lhr, star, arα, cyp11a, cyp17a1, cyp19a, and erα); the expression...
Source: Chemosphere - April 23, 2024 Category: Chemistry Authors: Zuchun Chen Xueyou Li Jiahao Gao Yue Liu Ning Zhang Yusong Guo Zhongduo Wang Zhongdian Dong Source Type: research
