Journal of environmental sciences最新文献_第4页

The impact of China's high-speed rail investment on regional economy and air pollution emissions 中国高铁投资对区域经济和大气污染排放的影响

IF 6.9

Journal of environmental sciences Pub Date : 2023-09-01 DOI: 10.1016/j.jes.2022.07.020

Qiong Yang , Yuqing Wang , Ying Liu , Junfeng Liu , Xiurong Hu , Jianmin Ma , Xuejun Wang , Yi Wan , Jianying Hu , Zhaobin Zhang , Xilong Wang , Shu Tao

{"title":"The impact of China's high-speed rail investment on regional economy and air pollution emissions","authors":"Qiong Yang , Yuqing Wang , Ying Liu , Junfeng Liu , Xiurong Hu , Jianmin Ma , Xuejun Wang , Yi Wan , Jianying Hu , Zhaobin Zhang , Xilong Wang , Shu Tao","doi":"10.1016/j.jes.2022.07.020","DOIUrl":"10.1016/j.jes.2022.07.020","url":null,"abstract":"<div>The high-speed rail (HSR) network in China has experienced rapid development since the 2000s. In 2016, the State Council of the People's Republic of China issued a revised version of the “Mid- and Long-term Railway Network Plan”, detailing the expansion of the railway network and construction of an HSR system. In the future, the HSR construction efforts in China will further increase, which is considered to impact regional development and air pollutant emissions. Therefore, in this paper, we apply a transportation network-multiregional computable general equilibrium (CGE) model to estimate the dynamic effects of HSR projects on economic growth, regional disparities, and air pollutant emissions in China. The results indicate that HSR system improvement could generate a positive economic impact but could also increase emissions. The gross domestic product (GDP) growth per unit investment cost stimulated by HSR investment is found to be the largest in eastern China but the smallest in the northwest regions. Conversely, HSR investment in Northwest China contributes to a substantial reduction in regional disparities in terms of the GDP per capita. In regard to air pollution emissions, HSR construction in South-Central China results in the largest increase in CO2 and NOX emissions, while for CO, SO2, and fine particulate matter (PM2.5) emissions, the largest increase occurs due to HSR construction in Northwest China. At the regional level, the provinces with large changes in accessibility also experience large changes in their air pollutant emissions.</div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"131 ","pages":"Pages 26-36"},"PeriodicalIF":6.9,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9521415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Cadmium induced a non-coding RNA microRNA535 mediates Cd accumulation in rice 镉诱导的非编码RNA microRNA535介导水稻镉积累

IF 6.9

Journal of environmental sciences Pub Date : 2023-08-01 DOI: 10.1016/j.jes.2022.10.005

Erkui Yue , Fuxi Rong , Zhen Liu , Songlin Ruan , Tao Lu , Haifeng Qian

{"title":"Cadmium induced a non-coding RNA microRNA535 mediates Cd accumulation in rice","authors":"Erkui Yue , Fuxi Rong , Zhen Liu , Songlin Ruan , Tao Lu , Haifeng Qian","doi":"10.1016/j.jes.2022.10.005","DOIUrl":"10.1016/j.jes.2022.10.005","url":null,"abstract":"<div>Identifying key regulators related to cadmium (Cd) tolerance and accumulation is the main factor for genetic engineering to improve plants for bioremediation and ensure crop food safety. MicroRNAs (miRNAs), as fine-tuning regulators of genes, participate in various abiotic stress processes. MiR535 is an ancient conserved non-coding small RNA in land plants, positively responding to Cd stress. We investigated the effects of knocking out (mir535) and overexpressing miR535 (mir535 and OE535) under Cd stress in rice plants in this study. The mir535 plants showed better Cd tolerance than wild type (WT), whereas the OE535 showed the opposite effect. Cd accumulated approximately 71.9% and 127% in the roots of mir535 and OE535 plants, respectively, compared to WT, after exposure to 2 µmol/L Cd. In brown rice, the total Cd accumulation of OE535 and mir535 was about 78% greater and 35% lower than WT. When growing in 2 mg/kg Cd of soil, the Cd concentration was significantly lower in mir535 and higher in OE535 than in the WT; afterward, we further revealed the most possible target gene SQUAMOSA promoter binding-like transcription factor 7(SPL7) and it negatively regulates Nramp5 expression, which in turn regulates Cd metabolism. Therefore, the CRISPR/Cas9 technology may be a valuable strategy for creating new rice varieties to ensure food safety.</div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"130 ","pages":"Pages 149-162"},"PeriodicalIF":6.9,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9626386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Aggregation and stability of selenium nanoparticles: Complex roles of surface coating, electrolytes and natural organic matter 硒纳米粒子的聚集和稳定性:表面涂层、电解质和天然有机物的复杂作用

IF 6.9

Journal of environmental sciences Pub Date : 2023-08-01 DOI: 10.1016/j.jes.2022.10.025

Sujuan Yu , Hao Liu , Rui Yang , Wenjing Zhou , Jingfu Liu

{"title":"Aggregation and stability of selenium nanoparticles: Complex roles of surface coating, electrolytes and natural organic matter","authors":"Sujuan Yu , Hao Liu , Rui Yang , Wenjing Zhou , Jingfu Liu","doi":"10.1016/j.jes.2022.10.025","DOIUrl":"10.1016/j.jes.2022.10.025","url":null,"abstract":"<div>The application of selenium nanoparticles (SeNPs) as nanofertilizers may lead to the release of SeNPs into aquatic systems. However, the environmental behavior of SeNPs is rarely studied. In this study, using alginate-coated SeNPs (Alg-SeNPs) and polyvinyl alcohol-coated SeNPs (PVA-SeNPs) as models, we systematically investigated the aggregation and stability of SeNPs under various water conditions. PVA-SeNPs were highly stable in mono- and polyvalent electrolytes, probably due to the strong steric hindrance of the capping agent. Alg-SeNPs only suffered from a limited increase in size, even at 2500 mmol/L NaCl and 200 mmol/L MgCl2, while they underwent apparent aggregation in CaCl2 and LaCl3 solutions. The binding of Ca2+ and La3+ with the guluronic acid part in alginate induced the formation of cross-linking aggregates. Natural organic matter enhanced the stability of Alg-SeNPs in monovalent electrolytes, while accelerated the attachment of Alg-SeNPs in polyvalent electrolytes, due to the cation bridge effects. The long-term stability of SeNPs in natural water showed that the aggregation sizes of Alg-SeNPs and PVA-SeNPs increased to several hundreds of nanometers or above 10 µm after 30 days, implying that SeNPs may be suspended in the water column or further settle down, depending on the surrounding water chemistry. The study may contribute to the deep insight into the fate and mobility of SeNPs in the aquatic environment. The varying fate of SeNPs in different natural waters also suggests that the risks of SeNPs to organisms living in diverse depths in the aquatic compartment should be concerned.</div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"130 ","pages":"Pages 14-23"},"PeriodicalIF":6.9,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9626390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Influence of dissolved organic carbon on multimedia distribution and toxicity of fipronil and its transformation products in lotic waterways 溶解有机碳对氟虫腈及其转化产物在水体中的多媒体分布和毒性的影响

IF 6.9

Journal of environmental sciences Pub Date : 2023-08-01 DOI: 10.1016/j.jes.2022.10.015

Weizong Li, Hao Hu, Fen Liu, Huizhen Li, Jing You

{"title":"Influence of dissolved organic carbon on multimedia distribution and toxicity of fipronil and its transformation products in lotic waterways","authors":"Weizong Li, Hao Hu, Fen Liu, Huizhen Li, Jing You","doi":"10.1016/j.jes.2022.10.015","DOIUrl":"10.1016/j.jes.2022.10.015","url":null,"abstract":"<div>Environmental fate and ecological impacts of fipronil and its transformation products (FIPs) in aquatic environment have caused worldwide attention, however, the influence of dissolved organic carbon (DOC) on multimedia distribution, bioavailability, and toxicity of FIPs in field waterways was largely unknown. Here, we collected 11 companion water and sediment samples along a lotic stream in Guangzhou, South China. FIPs were ubiquitous with total water concentrations ranging from 1.22 to 43.2 ng/L (14.8 ± 12.9 ng/L) and fipronil sulfone was predominant in both water and sediment. More than 70% of FIPs in aqueous phase were bound to DOC and the KDOC values of FIPs were approximately 1–2 orders of magnitude higher than Kd-s/KOC, emphasizing the significance of DOC in phase partitioning and transport of FIPs in aquatic environment. Water and sediment samples were more toxic to Chironomus dilutus than Hyallela azteca, and FIPs (especially fipronil sulfone) pronouncedly contributed toxicity to C. dilutus. Toxic units (TU) based on freely dissolved concentrations in water determined by solid phase microextraction significantly improved toxicity estimation of FIPs to the invertebrates compared to TUs based on aqueous concentrations. The present study highlights the significance of DOC association on fate and ecological risk of hydrophobic insecticides in lotic ecosystem.</div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"130 ","pages":"Pages 52-64"},"PeriodicalIF":6.9,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9325541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A supplementary assessment system of AQI-V for comprehensive management and control of air quality in chemical industrial parks 化工园区空气质量综合治理补充评价体系

IF 6.9

Journal of environmental sciences Pub Date : 2023-08-01 DOI: 10.1016/j.jes.2022.06.037

Qiaoli Wang , Dongping Sheng , Chengzhi Wu , Deji Jing , Nana Cheng , Xingnong Cai , Sujing Li , Jingkai Zhao , Wei Li , Jianmeng Chen

{"title":"A supplementary assessment system of AQI-V for comprehensive management and control of air quality in chemical industrial parks","authors":"Qiaoli Wang , Dongping Sheng , Chengzhi Wu , Deji Jing , Nana Cheng , Xingnong Cai , Sujing Li , Jingkai Zhao , Wei Li , Jianmeng Chen","doi":"10.1016/j.jes.2022.06.037","DOIUrl":"10.1016/j.jes.2022.06.037","url":null,"abstract":"<div>Volatile organic compounds (VOCs) are the dominant pollutants in industrial parks. However, they are not generally considered as part of the air quality index (AQI) system, which leads to a biased assessment of pollution in industrial parks. In this study, a supplementary assessment system of AQI-V was established by analyzing VOCs characteristics with vehicle-mounted PTR-TOFMS instrument, correlation analysis and the standards analysis. Three hourly and daily scenarios were considered, and the hierarchical parameter setting was further optimized by field application. The hourly and daily assessments revealed the evaluation factors for the discriminability of different air quality levels, practiced value for regional air quality improvement, and the reservation of general dominant pollutants. Finally, the universality testing in ZPIP successfully recognized most of the peaks, with 54.76%, 38.39% and 6.85% for O3, VOCs and NO2 as the dominant pollutant, and reflected the daily ambient air quality condition, together with the dominant pollutant. The AQI-V system with VOCs sub-index is essential for air quality evaluation in industrial parks, which can further provide scientific support to control the pollution of VOCs and the secondary pollutant, therefore significantly improve the air quality in local industrial parks.</div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"130 ","pages":"Pages 114-125"},"PeriodicalIF":6.9,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9626383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Temporal-spatial dynamic characteristics of vehicle emissions on intercity roads in Guangdong Province based on vehicle identity detection data 基于车辆身份检测数据的广东省城际道路车辆排放时空动态特征

IF 6.9

Journal of environmental sciences Pub Date : 2023-08-01 DOI: 10.1016/j.jes.2022.06.034

Hui Ding , Yongming Zhao , Shenhua Miao , Tong Chen , Yonghong Liu

{"title":"Temporal-spatial dynamic characteristics of vehicle emissions on intercity roads in Guangdong Province based on vehicle identity detection data","authors":"Hui Ding , Yongming Zhao , Shenhua Miao , Tong Chen , Yonghong Liu","doi":"10.1016/j.jes.2022.06.034","DOIUrl":"10.1016/j.jes.2022.06.034","url":null,"abstract":"<div>Estimating intercity vehicle emissions precisely would benefit collaborative control in multiple cities. Considering the variability of emissions caused by vehicles, roads, and traffic, the 24-hour change characteristics of air pollutants (CO, HC, NOX, PM2.5) on the intercity road network of Guangdong Province by vehicle categories and road links were revealed based on vehicle identity detection data in real-life traffic for each hour in July 2018. The results showed that the spatial diversity of emissions caused by the unbalanced economy was obvious. The vehicle emissions in the Pearl River Delta region (PRD) with a higher economic level were approximately 1–2 times those in the non-Pearl River Delta region (non-PRD). Provincial roads with high loads became potential sources of high emissions. Therefore, emission control policies must emphasize the PRD and key roads by travel guidance to achieve greater reduction. Gasoline passenger cars with a large proportion of traffic dominated morning and evening peaks in the 24-hour period and were the dominant contributors to CO and HC emissions, contributing more than 50% in the daytime (7:00–23:00) and higher than 26% at night (0:00–6:00). Diesel trucks made up 10% of traffic, but were the dominant player at night, contributed 50%–90% to NOX and PM2.5 emissions, with a marked 24-hour change rule of more than 80% at night (23:00–5:00) and less than 60% during daytime. Therefore, targeted control measures by time-section should be set up on collaborative control. These findings provide time-varying decision support for variable vehicle emission control on a large scale.</div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"130 ","pages":"Pages 126-138"},"PeriodicalIF":6.9,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9626385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Characteristics and health risks of population exposure to phthalates via the use of face towels 使用面巾接触邻苯二甲酸酯人群的特征和健康风险

IF 6.9

Journal of environmental sciences Pub Date : 2023-08-01 DOI: 10.1016/j.jes.2022.10.016

Wenhui Zhang , Na Zheng , Sujing Wang , Siyu Sun , Qirui An , Xiaoqian Li , Zimeng Li , Yining Ji , Yunyang Li , Jiamin Pan

{"title":"Characteristics and health risks of population exposure to phthalates via the use of face towels","authors":"Wenhui Zhang , Na Zheng , Sujing Wang , Siyu Sun , Qirui An , Xiaoqian Li , Zimeng Li , Yining Ji , Yunyang Li , Jiamin Pan","doi":"10.1016/j.jes.2022.10.016","DOIUrl":"10.1016/j.jes.2022.10.016","url":null,"abstract":"<div>The production of face towels is growing at an annual rate of about 4% in China, reaching 1.13 million tons by 2021. Phthalates (PAEs) are widely used in textiles, and face towels, as an important household textile, may expose people to PAEs via the skin, further leading to health risks. We collected new face towels and analyzed the distribution characterization of PAEs in them. The changes of PAEs were explored in a face towel use experiment and a simulated laundry experiment. Based on the use of face towels by 24 volunteers, we calculated the estimated daily intake (EDI) and comprehensively assessed the hazard quotient (HQ), hazard index (HI), and dermal cancer risk (DCR) of PAEs exposure in the population. PAEs were present in new face towels at total concentrations of <MDL–2388 ng/g, with a median of 173.2 ng/g, which was a lower contamination level compared with other textiles. PAE contents in used face towels were significantly higher than in new face towels. The concentrations of PAEs in coral velvet were significantly higher than those in cotton. Water washing removed some PAEs, while detergent washing increased the PAE content on face towels. Gender, weight, use time, and material were the main factors affecting EDI. The HQ and HI were less than 1, which proved PAEs had no significant non-carcinogenic health risks. Among the five target PAEs studied, DEHP was the only carcinogenic PAE and may cause potential health risks after long-term exposure. Therefore, we should pay more attention to DEHP.</div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"130 ","pages":"Pages 1-13"},"PeriodicalIF":6.9,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9640618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Heterogeneous reaction of NO2 with feldspar, three clay minerals and Arizona Test Dust NO2与长石、3种粘土矿物及亚利桑那试验粉尘的非均相反应

IF 6.9

Journal of environmental sciences Pub Date : 2023-08-01 DOI: 10.1016/j.jes.2022.07.023

Mingjin Tang , Xiaohong Jia , Lanxiadi Chen , Wenjun Gu , Chengpeng Huang , Fu Wang , Lan Luo , Hongli Wang , Xinming Wang , Chao Peng

{"title":"Heterogeneous reaction of NO2 with feldspar, three clay minerals and Arizona Test Dust","authors":"Mingjin Tang , Xiaohong Jia , Lanxiadi Chen , Wenjun Gu , Chengpeng Huang , Fu Wang , Lan Luo , Hongli Wang , Xinming Wang , Chao Peng","doi":"10.1016/j.jes.2022.07.023","DOIUrl":"https://doi.org/10.1016/j.jes.2022.07.023","url":null,"abstract":"<div>Heterogeneous reaction of NO2 with mineral dust aerosol may play important roles in troposphere chemistry, and has been investigated by a number of laboratory studies. However, the influence of mineralogy on this reaction has not been well understood, and its impact on aerosol hygroscopicity is not yet clear. This work investigated heterogeneous reactions of NO2 (∼10 ppmv) with K-feldspar, illite, kaolinite, montmorillonite and Arizona Test Dust (ATD) at room temperature as a function of relative humidity (<1% to 80%) and reaction time (up to 24 hr). Heterogeneous reactivity towards NO2 was low for illite, kaolinite, montmorillonite and ATD, and uptake coefficients of NO2, γ(NO2), were determined to be around or smaller than 1×10−8; K-feldspar exhibited higher reactivity towards NO2, and CaCO3 is most reactive among the nine mineral dust samples considered in this and previous work. After heterogeneous reaction with NO2 for 24 hr, increase in hygroscopicity was nearly insignificant for illite, kaolinite and montmorillonite, and small but significant for K-feldspar; in addition, large increase in hygroscopicity was observed for ATD, although the increase in hygroscopicity was still smaller than CaCO3.</div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"130 ","pages":"Pages 65-74"},"PeriodicalIF":6.9,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49740965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Atmospheric gaseous aromatic hydrocarbons in eastern China based on mobile measurements: Spatial distribution, secondary formation potential and source apportionment 基于流动测量的中国东部大气气态芳烃：空间分布、次生形成潜力和来源解析

IF 6.9

Journal of environmental sciences Pub Date : 2023-08-01 DOI: 10.1016/j.jes.2022.08.006

Lingling Yuan , Hongli Wang , Yaqin Gao , Guofa Ren , Yiqun Lu , Shengao Jing , Wen Tan , Liang Zhu , Yu Shang , Jing An , Cheng Huang

{"title":"Atmospheric gaseous aromatic hydrocarbons in eastern China based on mobile measurements: Spatial distribution, secondary formation potential and source apportionment","authors":"Lingling Yuan , Hongli Wang , Yaqin Gao , Guofa Ren , Yiqun Lu , Shengao Jing , Wen Tan , Liang Zhu , Yu Shang , Jing An , Cheng Huang","doi":"10.1016/j.jes.2022.08.006","DOIUrl":"10.1016/j.jes.2022.08.006","url":null,"abstract":"<div>Monocyclic aromatic hydrocarbons (MAHs) and polycyclic aromatic hydrocarbons (PAHs) are both well known as hazardous air pollutants and also important anthropogenic precursors of tropospheric ozone (O3) and secondary organic aerosols (SOA). In recent years, there have been intensive studies covering MAHs emission from various sources and their behavior under stimulated photochemical conditions. Yet in-situ measurements of PAHs presence and variations in ambient air are sparse. Herein we conducted large geometrical scale mobile measurements for 16 aromatic hydrocarbons (AHs, including 7 MAHs and 9 PAHs) in eastern China between October 27 and November 8, 2019. This unique dataset has allowed for some insights in terms of AHs concentration variations, accompanying chemical composition, source contributions and spatial distributions in eastern China. In general, AHs showed a clear concentration variability between the south and the north of the Yangtze River Delta (YRD). The concentrations of PAHs were approximately 9% of AHs, but contributed 23% of SOA formation potential. Source apportionment via positive matrix factorization (PMF) model revealed that industrial processes as the largest source (44%) of observed AHs, followed by solvent usage (21%), vehicle exhaust (19%), coal combustion (11%) and coking processes (6%). In the perspective of PAHs sources, coal combustion emissions were identified as the dominating factor of a share of 41%–52% in eastern China. Our findings complemented the simultaneously monitoring information of PAHs and MAHs in eastern China, revealed the importance of PAHs to SOA formation and highlighted the necessity of formulating strategies to reduce emissions from anthropogenic sources and reduce risks to human health.</div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"130 ","pages":"Pages 102-113"},"PeriodicalIF":6.9,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9640617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Simultaneous degradation of sulfadiazine and dissolved organic matter based on low‐impact development facilities 基于低影响开发设施的磺胺嘧啶和溶解有机物的同时降解

IF 6.9

Journal of environmental sciences Pub Date : 2023-08-01 DOI: 10.1016/j.jes.2022.10.010

Donghai Yuan , Siyu Xiong , Chenling Yan , Linxiao Zhai , Yanqi Cui , Yingying Kou

{"title":"Simultaneous degradation of sulfadiazine and dissolved organic matter based on low‐impact development facilities","authors":"Donghai Yuan , Siyu Xiong , Chenling Yan , Linxiao Zhai , Yanqi Cui , Yingying Kou","doi":"10.1016/j.jes.2022.10.010","DOIUrl":"10.1016/j.jes.2022.10.010","url":null,"abstract":"<div>Sulfadiazine (SD) is a common antibiotic administered to treat bacterial infections in livestock, and its fate and migration are greatly affected by dissolved organic matter (DOM). The soil infiltration system [a typical low-impact development (LID) facility] can significantly alter DOM properties during runoff pollution, thus affecting the complexation of SD with DOM. Here, the binding characteristics of different DOM components and SD in the soil infiltration system were explored using spectroscopic techniques (excitation–emission matrices, parallel factor analysis, and synchronous fluorescence spectroscopy). Combined with the weakening of DOM fluorescence intensity and 78.63% reduction in mean SD concentration following treatment, synchronous degradation may have occurred. The binding sequence of SD and DOM fluorophores was further explored using two-dimensional correlation spectroscopy. Effluent DOM showed greater sensitivity to SD and more binding sites than influent DOM. Moreover, hydrophobic protein-like substances exhibited higher log KM values than other fluorescent components, indicating that protein-like components play significant roles in SD complexation. The soil percolation system improved the complexation stability and binding sequence of fulvic-like substances. Thus, SD–DOM can be intercepted and degraded using LID facilities to reduce the risk of SD in aquatic environments.</div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"130 ","pages":"Pages 223-233"},"PeriodicalIF":6.9,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9626388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2