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Field assessment of straw pellet combustion in improved heating stoves in rural Northeast China 秸秆颗粒燃烧在东北农村改进型采暖炉中的现场评价
IF 6.9
Journal of environmental sciences Pub Date : 2023-05-01 DOI: 10.1016/j.jes.2022.05.046
Yafei Liu , Zhimin Li , Emily Floess , You Zhang , Nicholas Lam , Sylvester K. Mawusi , Prabin Shrestha , Xinghua Li , Chunyu Xue , Guangqing Liu
{"title":"Field assessment of straw pellet combustion in improved heating stoves in rural Northeast China","authors":"Yafei Liu ,&nbsp;Zhimin Li ,&nbsp;Emily Floess ,&nbsp;You Zhang ,&nbsp;Nicholas Lam ,&nbsp;Sylvester K. Mawusi ,&nbsp;Prabin Shrestha ,&nbsp;Xinghua Li ,&nbsp;Chunyu Xue ,&nbsp;Guangqing Liu","doi":"10.1016/j.jes.2022.05.046","DOIUrl":"10.1016/j.jes.2022.05.046","url":null,"abstract":"<div><p><span>Straw pellets are widely promoted and expected to be a cleaner alternative fuel to unprocessed crop residues<span> and raw coal in rural China. However, the effectiveness of these dissemination programs is not well evaluated. In this field study, emission characteristics of burning straw pellets, raw coal, and unprocessed corn cobs in heating stoves were investigated in a pilot village in Northeast China. Emission measurements covering the whole combustion cycle (ignition, flaming, and smoldering phases) shows the promotion of improved heating stoves and straw pellets could reduce pollutant emissions (e.g., SO</span></span><sub>2</sub> and CO), but increase NO<sub>X</sub> and PM<sub>2.5</sub> emissions compared to the initial stove-fuel use pattern in the studied area. There is a significant variance in emission characteristics between different combustion phases. The normalized emission concentrations of the different stove-fuel combinations were higher than the limits in the Chinese national standard for heating stoves, indicating that the standard is not met for real-world emissions. Coal consumption was lower than official data. Household surveys were conducted to identify the barriers to fuel and stove access associated with existing promotion strategies, management, and policies. The pilot program was of the typical “subsidy-and-policy-dependence” pattern and was unlikely to be implemented on a large scale. Technological innovation, operational optimization, and proper policies considering the local socioeconomic factors are needed to sustain the promotion of biomass straw pellets and stoves.</p></div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"127 ","pages":"Pages 295-307"},"PeriodicalIF":6.9,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10381737","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
Toxicity mechanisms and bioavailability of copper to fish based on an adverse outcome pathway analysis 基于不良结果通路分析的铜对鱼的毒性机制和生物利用度
IF 6.9
Journal of environmental sciences Pub Date : 2023-05-01 DOI: 10.1016/j.jes.2022.06.002
Wei Liao , Ziwei Zhu , Chenglian Feng , Zhenfei Yan , Yajun Hong , Daqing Liu , Xiaowei Jin
{"title":"Toxicity mechanisms and bioavailability of copper to fish based on an adverse outcome pathway analysis","authors":"Wei Liao ,&nbsp;Ziwei Zhu ,&nbsp;Chenglian Feng ,&nbsp;Zhenfei Yan ,&nbsp;Yajun Hong ,&nbsp;Daqing Liu ,&nbsp;Xiaowei Jin","doi":"10.1016/j.jes.2022.06.002","DOIUrl":"10.1016/j.jes.2022.06.002","url":null,"abstract":"<div><p><span><span>Copper (Cu) exists in a variety of forms in different aquatic environments, and affects their bioavailability<span>. In this study we provide a systematic review on toxicity of Cu which focuses on identifying evidence in the mechanisms of Cu toxicity, and apply an adverse outcome pathway (AOP) analysis to identify multiple potential mechanisms and their interactions of Cu toxicity to fish. This analysis process included the mechanisms of behavior toxicant, oxidative toxicant, ion regulation disruption toxicity, as well as endocrine disruption toxicity. It was found that at low levels of Cu exposure, swimming, avoid predators, locating prey and other sensory functions will be impaired, and the organism will suffer from metabolic alkalosis and respiratory acidosis following the inhibition of the </span></span>carbonic anhydrase active. The main pathway of acute toxicity of Cu to fish is the inhibition of the Na</span><sup>+</sup>/K<sup>+</sup>-ATPase enzyme, and lead to reduced intracellular sodium absorption, as well as Cu-induced increased cell permeability, in turn resulting in increased sodium ion loss, leading to cardiovascular collapse and respiratory insufficiency. The endocrine disruption toxicity of Cu to fish caused growth inhibition and reproductive reduction. In addition, there are several key pathways of Cu toxicity that are affected by hardness (e.g., Ca<sup>2+</sup><span>) and intracellular DOC concentrations, including inhibiting Cu-induction, improving branchial gas exchange, altering membrane transport functions, decreasing Na</span><sup>+</sup> loss, and increasing Na<sup>+</sup> uptake. The results of the AOP analysis will provide a robust framework for future directed research on the mechanisms of Cu toxicity.</p></div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"127 ","pages":"Pages 495-507"},"PeriodicalIF":6.9,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10382033","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: 12
Environmental microcystin exposure triggers the poor prognosis of prostate cancer: Evidence from case-control, animal, and in vitro studies 环境微囊藻毒素暴露引发前列腺癌的不良预后:来自病例对照、动物和体外研究的证据
IF 6.9
Journal of environmental sciences Pub Date : 2023-05-01 DOI: 10.1016/j.jes.2022.05.051
Chun Pan , Haixiang Qin , Minghao Yan , Xuefeng Qiu , Wenyue Gong , Wenxin Luo , Hongqian Guo , Xiaodong Han
{"title":"Environmental microcystin exposure triggers the poor prognosis of prostate cancer: Evidence from case-control, animal, and in vitro studies","authors":"Chun Pan ,&nbsp;Haixiang Qin ,&nbsp;Minghao Yan ,&nbsp;Xuefeng Qiu ,&nbsp;Wenyue Gong ,&nbsp;Wenxin Luo ,&nbsp;Hongqian Guo ,&nbsp;Xiaodong Han","doi":"10.1016/j.jes.2022.05.051","DOIUrl":"10.1016/j.jes.2022.05.051","url":null,"abstract":"<div><p>Microcystin-leucine-arginine (MC-LR) is positively linked with multiple cancers in humans. However, the association between MC-LR and the risk and prognosis of prostate cancer has not been conducted in epidemiological studies. No reported studies have linked MC-LR exposure to the poor prognosis of prostate cancer by conducting experimental studies. The content of MC-LR was detected in most of the aquatic food in wet markets and supermarkets in Nanjing and posed a health risk for consumers. MC-LR levels in both prostate cancer tissues and serum were significantly higher than controls. The adjusted odds ratio (OR) for prostate cancer risk by serum MC-LR was 1.75 (95%CI: 1.21-2.52) in the whole subjects, and a positive correlation between MC-LR and advanced tumor stage was observed. Survival curve analysis indicated patients with higher MC-LR levels in tissues exhibited poorer overall survival. Human, animal, and cell studies confirmed that MC-LR exposure increases the expression of estrogen receptor-α (ERα) and promotes epithelial-mesenchymal transition (EMT) in prostate cancer. Moreover, MC-LR-induced decreased E-cadherin levels, increased vimentin levels, and increased migratory and invasive capacities of prostate cancer cells were markedly suppressed upon ERα knockdown. MC-LR-induced xenograft tumor growth and lung metastasis in BALB/c nude mice can be effectively alleviated with ERα knockdown. Our data demonstrated that MC-LR upregulated vimentin and downregulated E-cadherin through activating ERα, promoting migration and invasion of prostate cancer cells. Our findings highlight the role of MC-LR in prostate cancer, providing new perspectives to understand MC-LR-induced prostatic toxicity.</p></div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"127 ","pages":"Pages 69-81"},"PeriodicalIF":6.9,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10386976","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: 4
Impacts of synoptic circulation on surface ozone pollution in a coastal eco-city in Southeastern China during 2014-2019 2014-2019年天气环流对东南沿海生态城市地表臭氧污染的影响
IF 6.9
Journal of environmental sciences Pub Date : 2023-05-01 DOI: 10.1016/j.jes.2022.01.026
Yu Yan , Xuesong Wang , Zhengchao Huang , Kun Qu , Wenbin Shi , Zimu Peng , Limin Zeng , Shaodong Xie , Yuanhang Zhang
{"title":"Impacts of synoptic circulation on surface ozone pollution in a coastal eco-city in Southeastern China during 2014-2019","authors":"Yu Yan ,&nbsp;Xuesong Wang ,&nbsp;Zhengchao Huang ,&nbsp;Kun Qu ,&nbsp;Wenbin Shi ,&nbsp;Zimu Peng ,&nbsp;Limin Zeng ,&nbsp;Shaodong Xie ,&nbsp;Yuanhang Zhang","doi":"10.1016/j.jes.2022.01.026","DOIUrl":"10.1016/j.jes.2022.01.026","url":null,"abstract":"<div><p>The coastal eco-city of Fuzhou in Southeastern China has experienced severe ozone (O<sub>3</sub>) episodes at times in recent years. In this study, three typical synoptic circulations types (CTs) that influenced more than 80% of O<sub>3</sub> polluted days in Fuzhou during 2014-2019 were identified using a subjective approach. The characteristics of meteorological conditions linked to photochemical formation and transport of O<sub>3</sub> under the three CTs were summarized. Comprehensive Air Quality Model with extensions was applied to simulate O<sub>3</sub> episodes and to quantify O<sub>3</sub> sources from different regions in Fuzhou. When Fuzhou was located to the west of a high-pressure system (classified as “East-ridge”), more warm southwesterly currents flowed to Fuzhou, and the effects of cross-regional transport from Guangdong province and high local production promoted the occurrence of O<sub>3</sub> episodes. Under a uniform pressure field with a low-pressure system occurring to the east of Fuzhou (defined as “East-low”), stagnant weather conditions caused the strongest local production of O<sub>3</sub> in the atmospheric boundary layer. Controlled by high-pressure systems over the mainland (categorized as “Inland-high”), northerly airflows enhanced the contribution of cross-regional transport to O<sub>3</sub> in Fuzhou. The abnormal increases of the “East-ridge” and “Inland-high” were closely related to O<sub>3</sub> pollution in Fuzhou in April and May 2018, resulting in the annual maximum number of O<sub>3</sub> polluted days during recent years. Furthermore, the rising number of autumn O<sub>3</sub> episodes in 2017-2019 was mainly related to the “Inland-high”, indicating the aggravation of cross-regional transport and highlighting the necessity of enhanced regional collaboration and efforts in combating O<sub>3</sub> pollution.</p></div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"127 ","pages":"Pages 143-157"},"PeriodicalIF":6.9,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10371569","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
Organophosphate pesticides an emerging environmental contaminant: Pollution, toxicity, bioremediation progress, and remaining challenges 有机磷农药:一种新兴的环境污染物:污染、毒性、生物修复进展和仍然存在的挑战
IF 6.9
Journal of environmental sciences Pub Date : 2023-05-01 DOI: 10.1016/j.jes.2022.04.023
Himanshu Mali , Chandni Shah , B.H. Raghunandan , Anil S. Prajapati , Darshan H. Patel , Ujjval Trivedi , R.B. Subramanian
{"title":"Organophosphate pesticides an emerging environmental contaminant: Pollution, toxicity, bioremediation progress, and remaining challenges","authors":"Himanshu Mali ,&nbsp;Chandni Shah ,&nbsp;B.H. Raghunandan ,&nbsp;Anil S. Prajapati ,&nbsp;Darshan H. Patel ,&nbsp;Ujjval Trivedi ,&nbsp;R.B. Subramanian","doi":"10.1016/j.jes.2022.04.023","DOIUrl":"10.1016/j.jes.2022.04.023","url":null,"abstract":"<div><p>Organophosphates (OPs) are an integral part of modern agriculture; however, due to overexploitation, OPs pesticides residues are leaching and accumulating in the soil, and groundwater contaminated terrestrial and aquatic food webs. Acute exposure to OPs could produce toxicity in insects, plants, animals, and humans. OPs are known for covalent inhibition of acetylcholinesterase enzyme in pests and terrestrial/aquatic organisms, leading to nervous, respiratory, reproductive, and hepatic abnormalities. OPs pesticides also disrupt the growth-promoting machinery in plants by inhibiting key enzymes, permeability, and trans-cuticular diffusion, which is crucial for plant growth. Excessive use of OPs, directly/indirectly affecting human/environmental health, raise a thoughtful global concern. Developing a safe, reliable, economical, and eco-friendly methods for removing OPs pesticides from the environment is thus necessary. Bioremediation techniques coupled with microbes or microbial-biocatalysts are emerging as promising antidotes for OPs pesticides. Here, we comprehensively review the current scenario of OPs pollution, their toxicity (at a molecular level), and the recent advancements in biotechnology (modified biocatalytic systems) for detection, decontamination, and bioremediation of OP-pesticides in polluted environments. Furthermore, the review focuses on onsite applications of OPs degrading enzymes (immobilizations/biosensors/others), and it also highlights remaining challenges with future approaches.</p></div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"127 ","pages":"Pages 234-250"},"PeriodicalIF":6.9,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10371573","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: 52
Responses of potential ammonia oxidation and ammonia oxidizers community to arsenic stress in seven types of soil 7种土壤中潜在氨氧化菌和氨氧化菌群落对砷胁迫的响应
IF 6.9
Journal of environmental sciences Pub Date : 2023-05-01 DOI: 10.1016/j.jes.2022.02.038
Yanan Wang, Xibai Zeng, Yang Zhang, Nan Zhang, Liyang Xu, Cuixia Wu
{"title":"Responses of potential ammonia oxidation and ammonia oxidizers community to arsenic stress in seven types of soil","authors":"Yanan Wang,&nbsp;Xibai Zeng,&nbsp;Yang Zhang,&nbsp;Nan Zhang,&nbsp;Liyang Xu,&nbsp;Cuixia Wu","doi":"10.1016/j.jes.2022.02.038","DOIUrl":"10.1016/j.jes.2022.02.038","url":null,"abstract":"<div><p><span><span>Soil arsenic contamination is of great concern because of its toxicity to human, crops, and soil microorganisms. However, the impacts of arsenic on soil ammonia </span>oxidizers communities remain unclear. Seven types of soil spiked with 0 or 100 mg arsenic per kg soil were incubated for 180 days and sampled at days 1, 15, 30, 90 and 180. The changes in the community composition and abundance of ammonia oxidizing bacteria (AOB) and ammonia oxidizing archaea (AOA) were analyzed by terminal restriction fragment length polymorphism (T-RFLP) analysis, clone library sequencing, and quantitative PCR (qPCR) targeting </span><em>amoA</em> gene. Results revealed considerable variations in the potential ammonia oxidation (PAO) rates in different soils, but soil PAO was not consistently significantly inhibited by arsenic, probably due to the low bioavailable arsenic contents or the existence of functional redundancy between AOB and AOA. The variations in AOB and AOA communities were closely associated with the changes in arsenic fractionations. The <em>amoA</em> gene abundances of AOA increased after arsenic addition, whereas AOB decreased, which corroborated the notion that AOA and AOB might occupy different niches in arsenic-contaminated soils. Phylogenetic analysis of <em>amoA</em> gene-encoded proteins revealed that all AOB clone sequences belonged to the genus <em>Nitrosospira</em>, among which those belonging to <em>Nitrosospira</em> cluster 3a were dominant. The main AOA sequence detected belonged to <em>Thaumarchaeal</em><span> Group 1.1b, which was considered to have a high ability to adapt to environmental changes. Our results provide new insights into the impacts of arsenic on the soil nitrogen cycling.</span></p></div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"127 ","pages":"Pages 15-29"},"PeriodicalIF":6.9,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10380227","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
Abiotic and biotic constituents of oil sands process-affected waters 油砂过程影响水体的非生物和生物成分
IF 6.9
Journal of environmental sciences Pub Date : 2023-05-01 DOI: 10.1016/j.jes.2022.06.012
Nora A.S. Hussain, James L. Stafford
{"title":"Abiotic and biotic constituents of oil sands process-affected waters","authors":"Nora A.S. Hussain,&nbsp;James L. Stafford","doi":"10.1016/j.jes.2022.06.012","DOIUrl":"10.1016/j.jes.2022.06.012","url":null,"abstract":"<div><p>The oil sands in Northern Alberta are the largest oil sands in the world, providing an important economic resource for the Canadian energy industry. The extraction of petroleum in the oil sands begins with the addition of hot water to the bituminous sediment, generating oil sands process-affected water (OSPW), which is acutely toxic to organisms. Trillions of litres of OSPW are stored on oil sands mining leased sites in man-made reservoirs called tailings ponds. As the volume of OSPW increases, concerns arise regarding the reclamation and eventual release of this water back into the environment. OSPW is composed of a complex and heterogeneous mix of components that vary based on factors such as company extraction techniques, age of the water, location, and bitumen ore quality. Therefore, the effective remediation of OSPW requires the consideration of abiotic and biotic constituents within it to understand short and long term effects of treatments used. This review summarizes selected chemicals and organisms in these waters and their interactions to provide a holistic perspective on the physiochemical and microbial dynamics underpinning OSPW .</p></div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"127 ","pages":"Pages 169-186"},"PeriodicalIF":6.9,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10381736","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
Understanding light pollution: Recent advances on its health threats and regulations 了解光污染:其健康威胁和法规的最新进展
IF 6.9
Journal of environmental sciences Pub Date : 2023-05-01 DOI: 10.1016/j.jes.2022.06.020
Miao Cao , Ting Xu , Daqiang Yin
{"title":"Understanding light pollution: Recent advances on its health threats and regulations","authors":"Miao Cao ,&nbsp;Ting Xu ,&nbsp;Daqiang Yin","doi":"10.1016/j.jes.2022.06.020","DOIUrl":"10.1016/j.jes.2022.06.020","url":null,"abstract":"<div><p>The prevalence of artificial lights not only improves the lighting conditions for modern society, but also poses kinds of health threats to human health. Although there are regulations and standards concerning light pollution, few of them are based on the potential contribution of improper lighting to diseases. Therefore, a better understanding of the health threats induced by light pollution may promote risk assessment and better regulation of artificial lights, thereby a healthy lighting environment. This review is based on a careful collection of the latest papers from 2018 to 2022 about the health threats of light pollution, both epidemiologically and experimentally. In addition to summing up the novel associations of light pollution with obesity, mental disorders, cancer, etc., we highlight the toxicological mechanism of light pollution via circadian disruption, since light pollution directly interferes with the natural light-dark cycles, and damages the circadian photoentrainment of organisms. And by reviewing the alternations of clock genes and disturbance of melatonin<span> homeostasis induced by artificial lights, we aim to excavate the profound impacts of light pollution based on accumulating studies, thus providing perspectives for future research and guiding relevant regulations and standards.</span></p></div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"127 ","pages":"Pages 589-602"},"PeriodicalIF":6.9,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10382034","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: 26
Natural siderite derivatives activated peroxydisulfate toward oxidation of organic contaminant: A green soil remediation strategy 天然菱铁矿衍生物活化过硫酸氢盐氧化有机污染物:一种绿色土壤修复策略
IF 6.9
Journal of environmental sciences Pub Date : 2023-05-01 DOI: 10.1016/j.jes.2022.06.030
Chengwei Zhong , Yinying Jiang , Quanfeng Liu , Xiaoshuang Sun , Jiang Yu
{"title":"Natural siderite derivatives activated peroxydisulfate toward oxidation of organic contaminant: A green soil remediation strategy","authors":"Chengwei Zhong ,&nbsp;Yinying Jiang ,&nbsp;Quanfeng Liu ,&nbsp;Xiaoshuang Sun ,&nbsp;Jiang Yu","doi":"10.1016/j.jes.2022.06.030","DOIUrl":"10.1016/j.jes.2022.06.030","url":null,"abstract":"<div><p>Natural siderite (FeCO<sub>3</sub>), simulated synthetic siderite and nZVI/FeCO<sub>3</sub> composite were used as green and easily available iron-based catalysts in peroxydisulfate activation for remediating 2-chlorophenol as the target contaminant and this technique can effectively degrade organic pollutants in the soil. The key reaction parameters such as catalysts dosage, oxidant concentration and pH, were investigated to evaluate the catalytic performance of different materials in catalytic systems. The buffering property of natural soil conduced satisfactory degradation performance in a wide pH range (3-10). Both the main non-radical of <sup>1</sup>O<sub>2</sub> and free radicals of <span><math><msubsup><mtext>SO</mtext><mn>4</mn><mrow><mo>·</mo><mo>−</mo></mrow></msubsup></math></span> and <span><math><mrow><mi>O</mi><msup><mrow><mi>H</mi></mrow><mo>·</mo></msup></mrow></math></span> were evidenced by quenching experiment and electron paramagnetic resonance. The reduction of nZVI on FFC surface not only has the advantage for electronic transfer to promote the circulation of Fe(III) to Fe(II), but also can directly dechlorinate. Furthermore, the intermediates were comprehensively analyzed by GC-MS and a potential removal mechanism of three oxidant system for 2-CP soil degradation was obtained. Briefly, this research provides a new perspective for organic contaminate soil treatment using natural siderite or simulated synthetic siderite as efficient and environmental catalytic material.</p></div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"127 ","pages":"Pages 615-627"},"PeriodicalIF":6.9,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10386971","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: 0
Investigating aldehyde and ketone compounds produced from indoor cooking emissions and assessing their health risk to human beings 调查室内烹饪排放物产生的醛类和酮类化合物,并评估其对人类健康的风险
IF 6.9
Journal of environmental sciences Pub Date : 2023-05-01 DOI: 10.1016/j.jes.2022.05.033
Wei Zhang, Zhe Bai, Longbo Shi, Jung Hyun Son, Ling Li, Lina Wang, Jianmin Chen
{"title":"Investigating aldehyde and ketone compounds produced from indoor cooking emissions and assessing their health risk to human beings","authors":"Wei Zhang,&nbsp;Zhe Bai,&nbsp;Longbo Shi,&nbsp;Jung Hyun Son,&nbsp;Ling Li,&nbsp;Lina Wang,&nbsp;Jianmin Chen","doi":"10.1016/j.jes.2022.05.033","DOIUrl":"10.1016/j.jes.2022.05.033","url":null,"abstract":"<div><p><span><span>Aldehyde and ketone compounds are ubiquitous in the air and prone to adverse effects on human health. Cooking emission is one of the major indoor sources. Aiming to evaluate health risks associated with inhalation exposure to aldehyde and ketone compounds, 13 carbonyl compounds (CCs) released from heating 5 edible oils, 3 seasonings, and 2 dishes were investigated in a kitchen laboratory. For the scenarios of heating five types of oil, aldehydes accounted for 61.1%-78.0% of the total emission, mainly acetaldehyde, </span>acrolein and hexanal. Comparatively, heating oil with added seasonings released greater concentrations of aldehyde and ketone compounds. The concentration enhancement of larger molecular aldehydes was significantly greater. The emission factors of aldehyde and ketone compounds for cooking the dish of chili fried meat were much greater compared to that of tomato fried eggs. Therefore, food materials also had a great impact on the aldehyde and ketone emissions. Acetone and acetaldehyde were the most abundant CCs in the kitchen. Acrolein concentrations ranged from 235.18 to 498.71 µg/m</span><sup>3</sup><span>, which was about 100 times greater compared to the guidelines provided by Office of Environmental Health Hazard Assessment (OEHHA). The acetaldehyde inhalation for adults was 856.83-1515.55 µg and 56.23-192.79 µg from exposure to chili fried meat and tomato fried eggs, respectively. This exceeds the reference value of 90 µg/day provided by OEHHA. The findings of this study provided scientific evidences for the roles of cooking emissions on indoor air quality and human health.</span></p></div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"127 ","pages":"Pages 389-398"},"PeriodicalIF":6.9,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10748724","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: 9
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