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SSRN 2022年

作者： Kuang, Hongxuan Li, Yonghong Li, Leizi Ma, Shengtao An, Taicheng Fan, Ruifang Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring Guangdong Provincial Engineering Technology Research Center for Drug and Food Biological Resources Processing and Comprehensive Utilization School of Life Sciences South China Normal University Guangzhou510631 China Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control School of Environmental Science and Engineering Institute of Environmental Health and Pollution Control Guangdong University of Technology Guangzhou510006 China State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment Ministry of Ecology and Environment South China Institute of Environmental Sciences Guangzhou510655 China

E-waste pollution has emerged as a significant environmental concern, necessitating the establishment of priority-controlled e-waste pollutants and useful biomarkers that facilitate the rapid assessment of the impact of e-waste pollution on human exposure risks. Therefore, we performed a longitudinal population exposure monitoring research in an e-waste recycling area of China after e-waste control. The urinary levels of oxidative stress damage and typical pollutants emitted during e-waste recycling, including heavy metals, polycyclic aromatic hydrocarbons (PAHs), volatile organic compounds (VOCs), and polychlorinated diphenyl ethers (PCDE), were continuously monitored in populations (including 275 children and 485 adults) from 2016 to 2019 using high-performance liquid chromatography-tandem mass spectrometry. After e-waste control, oxidative DNA damage levels in children decreased significantly, suggesting that scientific recycling of e-waste significantly reduced the human health burden. Although the decline of pollutants exposure level was more obvious in children than in adults, children still had higher burdens of heavy metals, VOCs and PCDE 28 exposure and oxidative stress damage than adults. Urinary tin, 1-hydroxypyrene, s -phenylmercapturic acid, and 2′-hydroxy-2,4,4′-trichlorodiphenyl ether decreased significantly and monotonically over the years were identified as the potential biomarkers of e-waste pollution. Based on the associations between pollutant exposure and oxidative stress damage levels, the top six harmful pollutants were identified as toluene, molybdenum, copper, pyrene, naphthalene, and nickel, which should be listed as the priority-controlled e-waste pollutants. Most noteworthy, toluene and naphthalene induced oxidative lipid and DNA damage without threshold, respectively. Despite the implementation of four-year e-waste management, the levels of priority-controlled pollutants in 5.26% to 92.9% of local populations were still higher than the c

关键词： Electronic Waste

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Migration and Emission Characteristics of Trace Elements in Coal-Fired Power Plant Under Deep Peak Load Regulation

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SSRN 2022年

作者： Wang, Huasheng Zou, Chan Hu, Hongyun Gu, Guojian Dong, Lu Huang, Yongda Deng, Shuang Li, Songgeng State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China State Key Laboratory of Coal Combustion Huazhong University of Science and Technology Wuhan430074 China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences Beijing100012 China School of Chemical Engineering University of Chinese Academy of Sciences Beijing100049 China

The trace elements (TEs) have caused great harm to the environment due to the large consumption of coal, and the emission from coal-fired power plants (CFPPs) has become a hot issue. The deep peak load regulation (DPLR) become a trend in the CFPPs, which will affect the migration and emission of TEs. To explore the effect of the load, the migration and emission characteristics of typical TEs were studied in a 330 MW CFPPs under different loads. The field test results showed that a higher load would enhance the migration of Pb, Mn, and Cr from bottom ash to fly ash, while it had little effect on the other TEs. More importantly, more than 99% of TEs (only 93% for Se) can be captured by APCDs, while the emission risk of Se and Mn increased with the load. Compared to the other TEs, it is particularly noteworthy that Se has a higher gaseous proportion in the flue gas, and the emission factor sharply increased from 165 MW to 297 MW. In addition, part of the particulate-bound Se transformed into the gaseous state across the ESP. The field test results elucidated the migration characteristic of TEs with different boiler loads and provided guidance for TEs control in coal-fired power plants. © 2022, The Authors. All rights reserved.

关键词： Trace elements

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Fetal Exposure to Organic Contaminants and its Effect on Birth Size Revealed by Paired Maternal and Infant Hair

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SSRN 2022年

作者： Cai, Feng-Shan Tang, Bin Zheng, Jing Yan, Xiao Luo, Wei-Keng Li, Min Luo, Xiao-Jun Ren, Ming-Zhong Yu, Yun-Jiang Mai, Bi-Xian State Key Laboratory of Organic Geochemistry Guangdong Provincial Key Laboratory of Environmental Protection and Resources Utilization Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou510640 China State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment South China Institute of Environmental Sciences Ministry of Environmental Protection Guangzhou510655 China School of Public Health Key Laboratory of Environmental Pollution and Disease Monitoring of Ministry of Education Guizhou Medical University Guiyang550000 China Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou510640 China University of Chinese Academy of Sciences Beijing100049 China

Paired maternal and infant hair samples were analyzed to evaluate the levels and compositions of organic contaminants (OCs) in maternal and fetus in Guangzhou, China. The associations between fetal exposure to OCs and birth size were examined. Phthalate esters (PAEs), alternative plasticizers (APs), organophosphorus flame retardants (OPFRs), polybrominated diphenyl ethers (PBDEs) and organochlorine pesticides (OCPs) were detected at medians of 144 μg/g, 17.7 μg/g, 192 ng/g, 46.9 ng/g and 1.36 ng/g, respectively, in infant hair, and 59.5 μg/g, 11.4 μg/g, 455 ng/g, 2.26 ng/g and 6.26 ng/g, respectively, in maternal hair. OC concentrations in infant hair showed negative associations with gestational age and positive associations with maternal age and parity. PBDE and Dichlorodiphenyltrichloroethane (DDT) concentrations in paired maternal and infant hair showed significant positive correlations, while most plasticizers were poorly correlated in paired samples. Exposure sources and metabolic processes are responsible for the correlation variation between OC levels in maternal and infant hair. Lower-brominated PBDEs tended to deposit in infant hair. The fetuses with higher concentrations of plasticizers and OPFRs were associated with lower birth weight and shorter birth length. Bis (2-ethylhexyl) phthalate (DEHP), di-iso-butyl phthalate (DIBP), and tris (2-ethylhexyl) trimetallite (TOTM) in infant hairs were significantly associated with lower birth weight. This study provides vital information for evaluating fetal exposure to OCs and the health risks associated with the birth size based on infant hair. © 2022, The Authors. All rights reserved.

关键词： Organic pollutants

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Anaerobic methane oxidation coupled with denitrification mitigates soil nitrous oxide emissions

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Science Advances 2025年第24期11卷

作者： Renfei Li Ying Yuan Beidou Xi Wenbing Tan State Key Laboratory of Environmental Criteria and Risk Assessment and State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution Chinese Research Academy of Environmental Sciences Beijing 100012 China. School of Environment Tsinghua University Beijing 100084 China.

The impact of anaerobic oxidation of methane (AOM) coupled with denitrification on the emission of the denitrification intermediate N2O remains poorly understood. Here, we investigated the influence of AOM coupled with nitrate and nitrite reduction on soil N2O emissions and the associated microbial interactions. We show that AOM coupled with denitrification markedly reduces soil N2O emissions, with the type I methanotroph Methylobacter species collaborating with the Methylophilaceae and Gemmatimonadaceae families to perform key roles. The suppression of N2O emissions by AOM primarily stems from its role in supplying electrons and carbon sources, fueling complete denitrification by associated bacteria. In addition, we uncovered distinct microbial interaction strategies for AOM-coupled nitrate and nitrite reduction. While nitrite reduction necessitates both bacterial cooperation and extracellular electron transfer during its initial stages, nitrate reduction predominantly depends on methanotrophic bacteria alone at the outset. These findings advance our understanding of carbon-nitrogen cycle coupling and underscore AOM’s potential to simultaneously mitigate both CH4 and N2O emissions.

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Impact of mixed benzene site exposure on bioaccessibility in simulated lung fluids and health risk assessment

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Journal of Hazardous Materials 2025年 494卷 138466页

作者： Ma, Xuemin Wang, Ying Chen, Shuhe Wu, Changyong Wang, Weipeng Wang, Yue Engineering Research Center of Environmental Pollution Control Chinese Research Academy of Environmental Sciences Beijing100012 China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences Beijing100012 China State Key Laboratory of Environmental Criteria and Risk Assessment and State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution Chinese Research Academy of Environmental Sciences Beijing100012 China College of Urban and Rural Construction Agricultural University of Hebei Baoding071001 China

Benzene series (BTEX) are predominant volatile organic compounds (VOCs) in petroleum production and downstream industrial sites, primarily enter human lungs via inhalation, posing significant health risks. To address the critical limitation of existing risk assessments that focus solely on individual components, this study investigated benzene and ethylbenzene based on contamination characteristics of petroleum refineries in Northwest China. An innovative in vitro membrane oxygenator system was developed to simulate single and mixed exposure scenarios at three soil concentrations: low (5 mg/kg), medium (10 mg/kg), and high (20 mg/kg), respectively. Health risk indices including inhalation risk (Inh), hazard quotient (HQ), and lifetime cancer risk (LCR) were calculated using bioaccessibility–adjusted parameters to precisely compare risk variations across exposure modes. Results demonstrated significant synergistic effects in gas-liquid mass transfer kinetics under mixed exposure (P © 2025 The Authors

关键词： Health risks

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Bioreduction of hexavalent chromium:Effect of compost-derived humic acids and hematite

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Chinese chemical Letters 2020年第10期31卷 2693-2697页

作者： Chao Yang Ming-Xia Zheng Yuan Zhang Bei-Dou Xi Zai-Feng Tian Xiao-Song He School of Environmental Science and Engineering Tianjin UniversityTianjin 300350China State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution Chinese Research Academy of Environmental SciencesBeijing 100012China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China Hebei Engineering Research Center for Geographic Information Application Institute of Geographical SciencesHebei Academy of SciencesShijiazhuang 050030China Hebei Provincial Academy of Ecological and Environmental Science Shijiazhuang 050037China

Composting can enhance the nutrie nt ele ments cycling and reduce carbon dioxide ***,little information is available regarding the application of compost for the remediation of the contaminated *** this study,we assess the response of the redox capacities(electron accepting capacities(EAC)and electron donating capacities(EDC))of compost-derived humic acids(HAs)to the bioreduction of hexavalent chromium(Cr(Ⅵ)),especially in presence of *** result showed that the compost-derived HAs played an important role in the bioreduction of Cr(Ⅵ)in presence and absence of hematite under the anoxic,neutral(pH 7)and motionless *** on the pseudo-first order kinetic model,the rate constants of Cr(Ⅵ)reduction increased by 1.36-2.0 times when compost-derived HAs was *** redox capacity originating from the polysaccharide structure of compost-derived HAs made them effective in the direct Cr(Ⅵ)reduction(without MR-1)at pH ***,the reduction rates were inversely proportional to the composting treatment *** iron mineral(Fe_(2)O_(3))and compost-derived HAs were both present,the rate constants of Cr(Ⅵ)reduction increased by 2.35-5.09,which were higher than the rate of Cr(Ⅵ)reduction in HA-only systems,indicating that the hematite played a crucial role in the bioreduction process of Cr(Ⅵ).EAC and quinonoid structures played a major role in enhancing the bioreduction of Cr(Ⅵ)when iron mineral and compost-derived HAs coexisted in the *** results can extend the application fields of compost and will provide a new insight for the remediation of Cr(Ⅵ)-contaminated soil.

关键词： Bioreduction Hexavalent chromium Composting Humic acids Hematite

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Comparative Study of Photocatalytic H2 Production by Nickel Chalcogenides1+x Based Zn3In2S6 Photocatalytic System

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SSRN 2024年

作者： Mansoor, Seemal Hu, Zixu Zheng, Yifan Tayyab, Muhammad Khan, Mazhar Akmal, Zeeshan Zhou, Liang Lei, Juying Zhang, Jinlong Key Laboratory for Advanced Materials Shanghai Engineering Research Center for Multi-media Environmental Catalysis and Resource Utilization Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research Center School of Chemistry and Molecular Engineering East China University of Science & Technology Shanghai200237 China National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process East China University of Science and Technology 130 Meilong Road Shanghai200237 China Department of Molecular Engineering Graduate School of Engineering Kyoto University Kyoto-Daigaku Katsura Nishikyo-ku Kyoto615-8510 Japan State Key Laboratory of Urban Water Resource and Environment Harbin Institute of Technology Harbin150090 China Shanghai Institute of Pollution Control and Ecological Security Shanghai200092 China Institute of Materials Research Tsinghua Shenzhen International Graduate School Tsinghua University Guangdong Shenzhen518055 China

Exploiting metal chalcogenide-based photocatalysts has fascinated researchers as a source of green hydrogen (H2) energy. Herein, we have designed a novel selenium-enriched NiSe1+x/ZIS (NiSexZ) photocatalytic system via a two-step hydrothermal and facile photo-deposition method. It was fascinating to conclude here that the NiSexZ photocatalytic system showed boosted H2 evolution results in comparison with other sulphur-enriched NiS1+x/ZIS (NiSxZ) and tellurium-enriched NiTe1+x/ZIS (NiTexZ). The optimized NiSe0.5Z composite exhibited a photocatalytic H2 evolution of 3.24 mmol g -1 h -1, a 9.8-fold increase over pure ZIS and it demonstrated an apparent quantum efficiency (AQE) of 2.06% via 420nm filter. Moreover, sulphur (S), selenium (Se), and tellurium (Te) synergistic active sites were exposed to promote H2 evolution reaction in this work. Given the significant advancements and commendable performance exhibited by the Se-Hads across the week bond, it is extremely probable that the NiSe1+x cocatalyst holds immense potential for the development of sophisticated photocatalytic materials. © 2024, The Authors. All rights reserved.

关键词： Nickel compounds

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Efficient toluene degradation using Bacillus subtilis biofilm-supported Mn–Ce/zeolite catalysts

Green Synthesis and Catalysis

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Green Synthesis and Catalysis 2024年

作者： Mohsin, Muhammad Zubair Mohsin, Ali Zaman, Waqas Qamar Zhu, Xiaojuan Zhao, Xihua Abbas, Zain Hussain, Muhammad Hammad Shan, Ali Salim-ur-Rehman Nawaz, Muhammad Asif Omer, Rabia Zhuang, Yingping Guo, Meijin Huang, Jiaofang State Key Laboratory of Bioreactor Engineering East China University of Science and Technology Shanghai 200237 China Institute of Environmental Sciences and Engineering School of Civil and Environmental Engineering National University of Sciences and Technology (NUST) Islamabad 44000 Pakistan College of Life Science Jiangxi Normal University Nanchang 330022 China School of Resources and Environmental Engineering State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process East China University of Science and Technology Shanghai 200237 China College of Materials Science and Engineering Shenzhen Key Laboratory of Polymer Science and Technology Guangdong Research Center for Interfacial Engineering of Functional Materials Shenzhen University Shenzhen 518055 China Department of Food Science and Technology Riphah International University Faisalabad Campus Faisalabad 44000 Pakistan Institute of Materials Science of Seville (ICMS) University of Seville Seville 41092 Spain

This study investigated a new approach for synthesizing Bacillus subtilis biofilm-supported Mn–Ce/zeolite catalysts for the degradation of gaseous toluene. Four different metal oxide nano-catalysts (ZMn, ZMnCe-10%, ZMnCe-20%, and ZMnCe-30%) were synthesized with varying ratios of manganese (Mn) and cerium (Ce) on zeolite nanoparticles. TEM, SEM, XRD, BET, XPS, and EDX mapping were used to examine these four samples, as well as simple zeolite. Based on these analyses, the catalytic activity of the prepared samples ZMn, ZMnCe-10%, ZMnCe-20%, and ZMnCe-30% for the complete oxidation of toluene and toluene intermediate products were tested with Non-thermal plasma (NTP) technology in a dielectric barrier discharge (DBD) reactor. Among all, ZMnCe-20% showed the highest toluene degradation efficiency (89%) at low concentrations (200 ppm) and humidity (>50%). Later, highly efficient and hydrophobic nano-biocatalysts were prepared by combining B. subtilis biofilm wild-type (WT) and engineered B. subtilis biofilm EPS with ZMnCe-20% catalyst. EPS is the main component found in biofilm matrix and plays a key role in influencing properties such as biofilm stability, electron transfer, surface roughness and hydrophobicity. Compared to WT B. subtilis biofilm, EPS overexpressed B. subtilis biofilm showed stronger growth and development on ZMnCe-20% nanocatalyst. Moreover, the NTP system packed with ZMnCe-20%/biofilm (EPS+) nano-biocatalyst exhibited the highest toluene degradation activity (99%) with (83%) CO₂ selectivity, (up to 50%) reduction in NOx concentration and complete ozone decomposition at (250 ppm) toluene concentrations and increased humidity (>90%). High-energy electrons generated in the NTP system break the C–H and C–C bond between the rings of the toluene molecule, forming several byproducts which are later reacted with active radical species such as O[rad], OH[rad], and O₃ and further converted into final degradation products (CO₂

关键词： CO2 selectivity Engineered Bacillus subtilis biofilm Metal nanoparticles Toluene oxidation Zeolite

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不同类型渗滤液中微塑料污染的新见解——丰度、特征和潜在来源（英文）

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Engineering 2024年第6期 62-68页

作者：张蕾赵文涛张亮蔡震霄严瑞琪俞霞 Damià Barceló 隋倩 State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process School of Resources and Environmental Engineering East China University of Science and Technology State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and Engineering Tongji University Shanghai Institute of Pollution Control and Ecological Security Perkin Elmer Inc. Maihai Environmental Protection Technology Co. Ltd. Department of Environmental Chemistry Institute of Environmental Assessment and Water Research Spanish Council for Scientific Research (IDAEA-CSIC)

Municipal solid waste（MSW） is an important destination for abandoned plastics. During the waste disposal process, large plastic debris is broken down into microplastics（MPs） and released into the ***, current research only focuses on landfill leachates, and the occurrence of MPs in other leachates has not been studied. Therefore, herein, the abundance and characteristics of MPs in three types of leachates, namely, landfill leachate, residual waste leachate, and household food waste leachate, were studied, all leachates were collected from the largest waste disposal center in China. The results showed that the average MP abundances in the different types of leachates ranged from（129 ± 54） to（1288 ± 184） MP particles per liter(particles.L-1) and the household food waste leachate exhibited the highest MP abundance（p < 0.05）. Polyethylene（PE） and fragments were the dominant polymer type and shape in MPs, respectively. The characteristic polymer types of MPs in individual leachates were different. Furthermore, the conditional fragmentation model indicated that the landfilling process considerably affected the size distribution of MPs in leachates, leading to a higher percentage（> 80%） of small MPs（20–100 μm） in landfill leachates compared to other leachates. To the best of our knowledge, this is the first study discussing the sources of MPs in different leachates, which is important for MP pollution control during MSW disposal.

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Surface water and groundwater interactions contributed the seasonal NO3− and NH4+ sources and transformations in a hilly region, China

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Journal of environmental Management 2025年 387卷 125750页

作者： Wang, Jun Niu, Yuan Li, Chang Liu, Zian Jiang, Xia Wu, Yali State Key Laboratory of Environmental Criteria and Risk Assessment National Engineering Laboratory for Lake Pollution Control and Ecological Restoration Beijing100012 China State Environmental Protection Key Laboratory for Lake Pollution Control Chinese Research Academy of Environmental Sciences Beijing100012 China College of Resources and Environmental Henan Agricultural University Zhengzhou450046 China

Comprehensive understanding of nitrogen (N) sources and transformations under the interactions of variable water cycle processes were of great significance for formulating nitrogen mitigation strategies in aquatic systems. Multiple stable isotopes (δ15N-NO3-, δ18O-NO3-, δ15N-NH4+, δ2H-H2O, and δ18O-H2O) and hydrochemical characteristics in surface water (SW) and groundwater (GW) were to reveal seasonal NO3− and NH4+ sources and transformations in a hilly region with frequent vertical movements in this study. The δ2H-H2O, δ18O-H2O, and hydrochemical analysis highlighted surface water and groundwater interactions. The correlation between δ15N-NO3- and d-excess demonstrated soil leaching. Nitrification was the predominant nitrogen transformation process in the watershed during both seasons although denitrification occurred in certain points. Primary source of NO3− in SW was soil nitrogen (SN;34.5 ± 14.9 % in the dry season and 76.4 ± 8.1 % in the wet season). The contributions of various sources to NH4+ in SW were relatively equal during the dry season, while GW (30.5 ± 19.3 %) and manure and sewage (M&S) (29.0 ± 15.2 %) were the primary sources during the wet season. This study proved that groundwater was a significant source for NO3− and NH4+ input when utilizing source-track models, especially in hilly regions. These findings improve input sources for mixture models and identify the sources and transformations of water cycling and N biogeochemical processes. © 2025

关键词： Water analysis

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