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Non-Negligible Risks of Extracellular Antibiotic Resistance Genes in Antibiotic Production Wastewater Treatment Plants: Occurrence, Transformation Dynamics, and Potential Hosts

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SSRN 2025年

作者： Miao, Sun Zhang, Yanyan Wang, Yongjun Zuo, Jiane State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing100084 China Institute of Environmental Protection North China Pharmaceutical Company Hebei Shijiazhuang050015 China Institute of Environment and Ecology Tsinghua Shenzhen International Graduate School Shenzhen518055 China

The risks posed by extracellular antibiotic resistance genes (eARGs) in wastewater treatment plants (WTPs) have garnered increasing attention. Antibiotic production wastewater (APW) contains high concentrations of antibiotics and organics known to induce transformation and potentially aggregate the risks associated with eARGs. In this study, the presence, transformation dynamics, and potential hosts of eARGs in a full-scale APW treatment plant (APWTP) were investigated. Free-eARGs (f-eARGs) were prevalent in the effluent (5.0×106 copies/mL), comprising 54.9% of total ARGs. APW significantly increased the transforming ability of eARGs compared to municipal wastewater, with this effect being significantly greater than that of the antibiotics at influent concentration levels. This promotion effect was likely due to increased oxidative stress and bacterial membrane permeability, and reduced concomitantly with the removal of conventional wastewater pollutants (e.g., COD and NH3-N);however, such effect persisted after treatment. Based on cell sorting and high-throughput sequencing, several opportunistic pathogens, such as Pseudomonas, Stenotrophomonas, and Acinetobacter, demonstrated a heightened propensity to uptake eARGs, amplifying their associated health risks. These findings underscore the significant risks posed by eARGs to the spread of antibiotic resistance in WTPs, particularly when treating APW. © 2025, The Authors. All rights reserved.

关键词： Health risks

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A Green Sulfidated Micro Zero-Valent Iron Based-Hydrogel for the Sustainable Removal of Single and Multicomponent Heavy Metal in groundwater

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SSRN 2024年

作者： Wang, Tingting Wang, Zhewen Shi, Junxiang Yin, Ying Du, Wenchao Wu, Jichun Guo, Hongyan State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Nanjing210023 China School of Environment Nanjing Normal University Nanjing210036 China School of Earth Sciences and Engineering Nanjing University Nanjing210023 China Quanzhou Institute for Environment Protection lndustry Nanjing University Quanzhou362000 China Joint International Research Centre for Critical Zone Science University of Leeds Nanjing University Nanjing University Nanjing210023 China Chinese Research Academy of Environmental Sciences China

Heavy metals contaminated groundwater was a big challenge to the safety of groundwater resources. Herein, the green sulfidated micro zero-valent iron-based hydrogel (SA-S-mZVI) was fabricated and applied to simultaneously remove cadmium, chromium, copper, and lead. The sulfur modification and the introduction of sodium alginate hydrogel facilitated the efficient and sustainable removal of single and multi-heavy metals. The co-existing heavy metal cations benefited the removal of Cr(VI). The removal mechanism was mainly adsorption and precipitation, and heavy metals were mostly present in the form of stable precipitates. The co-existence of organic substance and ions slightly affected the removal of heavy metals. Moreover, the long-term column experiments (240 days) showed that SA-S-mZVI achieved the high removal efficiency of >99.9% in the single, binary, and ternary systems, without significant impact on the groundwater environment. This study provided a new insight for contriving an eco-friendly and long-lasting zero-valent iron-based hydrogel material for the in-situ remediation of single and multicomponent heavy metal contaminated groundwater. © 2024, The Authors. All rights reserved.

关键词： groundwater

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The Variation, Source, and environmental Impact of Chloride Across China: Summarized Field Results Based on the Aerosol Mass Spectrometer (AMS)

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Journal of Geophysical Research: Atmospheres 2025年第11期130卷

作者： Mingkai Liu Zhaoce Liu Jun Wang Wei Chen Tingting Feng Tianle Pan Bin Yuan Shan Huang Min Shao Min Hu Xinming Wang Weiwei Hu State Key Laboratory of Advanced Environmental Technology Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou China Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control Guangzhou Institute of Geochemistry Chinese Academy of Science Guangzhou China Guangdong Provincial Key Laboratory of Environmental Protection and Resources Utilization Chinese Academy of Science Guangzhou China University of Chinese Academy of Sciences Beijing China Now at Division of Environment & Sustainability Hong Kong University of Science & Technology Hong Kong China Institute for Environmental and Climate Research Jinan University Guangzhou China Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality Guangzhou China State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and Engineering Peking University Beijing China

Despite numerous field studies focusing on the chemical composition of particulate matter, systematic investigations on particulate chloride (Cl − ) are scarce in China. This study examines the spatiotemporal distribution, origin, and environmental impact of Cl − across China via compiling a comprehensive data set of submicron aerosol (PM 1 ) detected by the aerosol mass spectrometer (AMS). In addition, we integrated high-time resolution aerosol composition data from AMS at six representative sites in China for more detailed insights. The mass concentration of Cl − across China is notably high (1.9 ± 2.7 μg m −3 ) in comparison to the global average (0.3 ± 1.0 μg m −3 ), with a distinguished N–S pattern (North > South) and a distinct seasonality (winter > other seasons). Three categories of Cl − diurnal variations were classified, suggesting the primary combustion emission and gas/particle partitioning are the main drivers for the dynamic variation of Cl − . The good correlation between Cl − and combustion tracers corroborates the assertion that coal and biomass combustion are the main anthropogenic sources of Cl − based on emission inventory. Furthermore, the quantified environmental impacts of Cl − on ammonium balances, aerosol liquid water content, and hygroscopicity were systematically explored. In extreme cases, the Cl − can enhance 100% ALWC during polluted periods, signifying its key role in impacting the physiochemistry of aerosols. The mutual promotion between Cl − and other environment effects was also found. In summary, this study enhances our understanding of the distribution, sources, and environmental effects of Cl − across China, indicating that Cl − should be systematically considered in elucidating environment effect of fine particles.

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simulation of organic nitrates in Pearl River Delta in 2006 and the chemical impact on ozone production

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Science China Earth Sciences 2018年第2期61卷 228-238页

作者： CHEN XiaoRui WANG HaiChao LU KeDing State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and Engineering Peking University

Organic nitrates are secondary atmospheric pollutants that play a key role in ozone and aerosol production. This study focused on the simulation of organic nitrates through a box model coupled with RACM2 （Regional Atmospheric Chemistry Mechanism, version 2）, based on data from the PRIDE-PRD2006 campaign in Backgarden, China. Our study found that an overestimation of organic nitrate production rate was generated by the model. Furthermore, the effective production ratio （a^ff） of organic nitrates was around 0.033 after optimizing its chemical production module. The chemical impacts of organic nitrates on ozone production were related to VOC-OH reactivity and aeff. We found that VOC-OH reactivity was positively related to aeff, resulting in the suppression of ozone production caused by organic nitrates, which showed that P（Ox=O3＋NO2） increased initially and subsequently decreased with VOC-OH reactivity. These results highlight the importance of organic nitrate＇s impact on ozone production in strategies to control ozone pollution, specifically regarding the reduction of low-molecular-weight VOCs in the Pearl River Delta.

关键词： Organic nitrates Ozone RACM2 Pearl River Delta

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Temporal and spatial variation in the environmental impacts of China’s resource extraction at the provincial scale

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Ecosystem Health and Sustainability 2020年第1期6卷 631-646,630页

作者： He-Ming Wang Yao Wei Shen Zhao Guang-Xin Liu Fengmei Ma Guo-Qiang Wang Yao Wang Xin-Zhe Wang Dong Yang Jing-Ru Liu Hong-Tao Wang Feng Shi Wei-Qiang Chen State Environmental Protection Key Laboratory of Eco-Industry Northeastern UniversityShenyangChina Land and Water Commonwealth Scientific and Industrial Research Organisation(CSIRO)CanberraAustralia Key Lab of Urban Environment and Health Institute of Urban EnvironmentChinese Academy of ScienceXiamenChina State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijingChina College of Economics and Management Shenyang Agricultural UniversityShenyangChina Institute of Science and Technology for Development of Shandong Qilu University of Technology(Shandong Academy of Sciences)JinanChina Research Centre for Eco-Environmental Sciences Chinese Academy of SciencesBeijingChina College of Architecture and Environment Sichuan UniversityChengduChina

Introduction:Over the past two decades,China has experienced rapid economic development,which has not only led to a rapid increase in the use of raw materials but has also created environmental *** research analyzes the environmental impacts of resource extraction in China at the provincial level,and fully considers the environmental impact of various resources *** addition,it is the first time to quantitatively study the spatial pattern and evolution characteristics of the environmental impacts of China’s resource extraction from multiple perspectives by means of spatial ***:The results showed that the center of gravity of abiotic depletion potential(ADP)moved northwest,respiratory inorganics(RI)moved southwest and global warming potential(GWP)moved *** results of the standard deviation ellipse showed that RI and GWP varied over time and space,while ADP showed a discrete *** addition,the distribution of the four in the northeast-southwest direction became more ***:To mitigate the environmental impacts of resource extraction,we recommend that regional governments implement measures to control environmental impacts in the provinces within the distributed ellipse and design targeted policies based on actual conditions.

关键词： Resource extraction MFA environmental impact spatial analysis China

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Author Correction: China's greenhouse gas emissions for cropping systems from 1978-2016

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Scientific data 2023年第1期10卷 122页

作者： Dijuan Liang Xi Lu Minghao Zhuang Guang Shi Chengyu Hu Shuxiao Wang Jiming Hao Beijing Laboratory of Environmental Frontier Technologies School of Environment Tsinghua University Beijing 100084 China. Department of Environmental Health Harvard T.H. Chan School of Public Health Boston MA USA. Beijing Laboratory of Environmental Frontier Technologies School of Environment Tsinghua University Beijing 100084 China. xilu@***. State Key Joint Laboratory of Environment Simulation and Pollution Control and State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex Tsinghua University Beijing 100084 P. R. China. xilu@***. College of Resources and Environmental Sciences National Academy of Agriculture Green Development Key Laboratory of Plant-Soil Interactions of MOE China Agricultural University Beijing P.R. China. School of Computer Science China University of Geosciences Wuhan 430074 China. State Key Joint Laboratory of Environment Simulation and Pollution Control and State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex Tsinghua University Beijing 100084 P. R. China.

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Fluorescence Characteristics and Source Analysis of DOM in CKDu Zone of the North Central Province in Sri Lanka in Wet Season

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SSRN 2022年

作者： Hu, Dazhou Indika, Suresh Zhong, Hui Weragoda, Sujithra K. Jinadasa, K.B.S.N. Weerasooriya, Rohan Wei, Yuansong State Key Joint Laboratory of Environment Simulation and Pollution Control Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing100085 China Laboratory of Water Pollution Control Technology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing100085 China University of Chinese Academy of Sciences Beijing100049 China National Water Supply and Drainage Board Katugastota 20800 Sri Lanka Department of Civil Engineering Faculty of Engineering University of Peradeniya Peradeniya20400 Sri Lanka National Institute of Fundamental Studies Hantana Rd Kandy20000 Sri Lanka

Dissolved organic matter (DOM) should be purified for providing safe groundwater-based drinking water. Current research on groundwater in the chronic kidney disease of unknown etiology (CKDu) zone of the North Central Province (NCP) in Sri Lanka has focused mainly on groundwater aquatic chemistry, with limited attention paid to the spatial distribution, compositional sources and factors of DOM in groundwater. Therefore, two kind of groundwater samples from dug well and tube well in the NCP during the wet season were collected, and the structure, composition, source and spatial distribution characteristics of the DOM of these two groundwater types were determined, compared and analyzed by such analytical tools as parallel factor analysis (PARAFAC). Results show that the average concentrations of TOC in the groundwater of the two aquifers are generally greater than 5.0mg/l. The concentration of TOC in the groundwater of the shallow weathered aquifer is higher than that of the deep hard rock aquifer, while its distribution of the two aquifers are on contrary. The DOM in groundwater of shallow weathered aquifer has three types and four components, including humus like component C1(33.36%) and C2(38.60%), protein like component C3(13.09%) and heterogeneous organic component C4(14.95 %). In the deep hard rock aquifer, two types and two components are determined, including humus like component CⅠ(69.80%) widely existing in natural water and soluble microbial by-product CⅡ(30.20%) produced by microbial community activities. In the groundwater of shallow weathered aquifer, DOM is mainly exogenous input, the higher ion concentration in water affected the fluorescence intensity of humus and protein components. In the groundwater of deep hard rock aquifer, DOM has obvious endogenous characteristics, and higher pH value may inhibit the production of protein like fluorescent substances to a certain extent. © 2022, The Authors. All rights reserved.

关键词： Aquifers

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Ozonation as an efficient pretreatment method to alleviate reverse osmosis membrane fouling caused by complexes of humic acid and calcium ion

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Frontiers of environmental Science & Engineering 2019年第4期13卷 89-100页

作者： Xuehao Zhao Yinhu Wu Xue Zhang Xin Tong Tong Yu Yunhong Wang Nozomu Ikuno Kazuki Ishii Hongying Hu Environmental Simulation and Pollution Control State Key Joint Laboratory State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC)School of EnvironmentTsinghua UniversityBeijing 100084China Collaborative Innovation Center for Advanced Nuclear Energy Technology Institute of Nuclear and New Energy TechnologyTsinghua UniversityBeijing 100084China Kurita Water Industries Ltd. Nakano-kuTokyo 164-0001Japan Shenzhen Environmental Science and New Energy Technology Engineering Laboratory Tsinghua-Berkeley Shenzhen InstituteShenzhen 518055China

Humic acid has been considered as one of the most significant sources in feed water causing organic fouling of reverse osmosis (RO) membranes, but the relationship between the fouling behavior of humic acid and the change of its molecular structure has not been well developed yet. In this study, the RO membrane fouling behavior of humic acid was studied systematically with ozonation as a pretreatment method to control RO membrane fouling. Furthermore, the effect of ozone on the structure ofhumic acid was also explored to reveal the mechanisms. Humic acid alone (10-90 mg/L, in deionized water) was found not to cause obvious RO membrane fouling in 45-h operation. However, the presence of Ca^2+ aggravated significantly the RO membrane fouling caused by humic acid, with significant flux reduction and denser fouling layer on RO membrane, as it was observed by scanning electron microscope (SEM) and atomic force microscope (AFM). However, after the pretreatment by ozone, the influence of Ca^2+ was almost eliminated. Further analysis revealed that the addition of Ca^2+ increased the particle size of humic acid solution significantly, while ozonation reduced the SUVA254, particle size and molecular weight of the complexes of humic acid and Ca^2+(HA-Ca^2+ complexes). According to these results and literature, the bridge effect of Ca^2+ aggregating humic acid molecules and the cleavage effect of ozone breaking HA-Ca^2+ complexes were summarized. The change of the structure of humic acid under the effect of Ca^2+ and ozone is closely related to the change of its membrane fouling behavior.

关键词： Reverse osmosis Membrane fouling Humic acid Ca^2+ Ozone

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我国大气污染治理的进展与生态文明时代的机遇和挑战

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Engineering 2020年第12期6卷 198-216页

作者：鲁玺张少君邢佳王韵杰陈文会丁点吴烨王书肖段雷郝吉明 State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex

中国过去的经济增长在很大程度上依赖于化石燃料消费,因此造成了严重的空气污染问题。解决经济增长与污染改善之间的矛盾已成为我国发展生态文明的关键。本文分析了我国近30年来大气污染治理的历程,指明了从排放控制到质量管理这一战略... 详细信息

中国过去的经济增长在很大程度上依赖于化石燃料消费,因此造成了严重的空气污染问题。解决经济增长与污染改善之间的矛盾已成为我国发展生态文明的关键。本文分析了我国近30年来大气污染治理的历程,指明了从排放控制到质量管理这一战略转变的重要意义。"十一五"期间,二氧化硫(SO)排放总量控制遏制了中国酸雨问题日益恶化的态势。2013年以来,我国制定了以降低细颗粒物(PM)浓度为大气污染治理的主要目标,开展了针对多个行业、多种大气污染物的综合治理行动,标志着中国向以空气质量为导向的战略转变。针对目前日益加剧的臭氧(O)污染,急需科学厘清PM和O污染控制之间复杂的相互作用关系,实施有效的污染协同控制策略。作为成功建设生态文明的关键性指标,中国空气质量的根本改善要求今后中国能源系统深度降碳,并且能够寻求更多的协同途径,从而同时改善空气质量和应对气候变化。

关键词：大气污染治理生态文明细颗粒物低碳发展臭氧

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Maternal Exposure to Nitrosamines In Drinking Water During Pregnancy And Indices of Fetal Growth In a Chinese Cohort

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SSRN 2022年

作者： Luo, Qiong Miao, Yu Liu, Chong Bei, Er Zhang, Jin-Feng Zhang, Ling-Hua Deng, Yan-Ling Qiu, Yu Lu, Wen-Qing Wright, J. Michael Chen, Chao Zeng, Qiang Department of Occupational and Environmental Health School of Public Health Tongji Medical College Huazhong University of Science and Technology Hubei Wuhan China School of Public Health Tongji Medical College Huazhong University of Science and Technology Hubei Wuhan China State Key Joint Laboratory of Environmental Simulation and Pollution Control School of Environment Tsinghua University Beijing China Maternal and Child Health Care Service Centre of Xiaonan District Hubei Xiaogan China Office of Research and Development U.S. Environmental Protection Agency Center for Public Health and Environmental Assessment CincinnatiOH United States

No human studies have focused on drinking water nitrosamines, a group of emerging unregulated nitrogenous disinfection by-products that exhibits genotoxicity and developmental toxicity in experimental studies. This cohort study included 2457 mother-infant pairs from a single drinking water supply system in central China. The associations of maternal trimester-specific and entire pregnancy exposure of drinking water nitrosamines with indices of fetal growth [birth weight (BW), low birth weight (LBW), small for gestational age (SGA) and preterm delivery (PTD)] were evaluated. Elevated maternal N-nitrosodimethylamine (NDMA) exposure in the second trimester and N-nitrosopiperidine (NPIP) exposure during the entire pregnancy were associated decreased BW and increased risks of PTD [e.g., risk ratio (RR) = 2.16;95% CI: 1.23, 3.79 and 1.66 for the highest vs. lowest tertile of NDMA;p for trend = 0.002]. Elevated maternal exposure of N-nitrosodiethylamine (NDEA) in the second trimester was associated with increased risk of SGA (RR = 1.80;95% CI: 1.09, 2.98 for the highest vs. lowest tertile;p for trend = 0.01). Our study detected associations of maternal exposure to drinking water nitrosamines during pregnancy with decreased BW and increased risks of SGA and PTD. © 2022, The Authors. All rights reserved.

关键词： Potable water

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