环境科学研究最新文献

{"title":"Preparation and Adsorption Characteristics of Novel Molecular Sieve for High Efficiency Arsenic Removal","authors":"许江城, 康得军, 赵颖, 王宏亮, 龚天成, 陈其晓, 瞿聪, 杨天学","doi":"10.13198/J.ISSN.1001-6929.2020.03.19","DOIUrl":"https://doi.org/10.13198/J.ISSN.1001-6929.2020.03.19","url":null,"abstract":"In order to enhance the adsorption performance of 4A molecular sieve for arsenic in aqueous solution,using MS as a carrier,iron-loaded molecular sieves(FMS)and iron-manganese molecular sieves(FMMS)were prepared as adsorbents for arsenic removal by impregnation method.The MS and FMS were characterized by SEM,FT-IR and BET,and carried out batch experiments to investigate the adsorption and removal effects of FMS and FMMS for pentavalent arsenic(As^5+)and trivalent arsenic(As^3+).The adsorption kinetics,isothermal adsorption test and adsorption thermodynamics of the FMS adsorption process were performed.The results show that the specific surface area of FMS is significantly increased and the surface structure of the material is improved.The specific surface area and pore volume of the FMS increased from^27.38 m^2 g and 0.068 cm^3 g to 281.25 m^2 g and 0.16 cm^3 g,respectively.Meanwhile,the average pore size decreased from 9.93 nm to 2.21 nm.This could cause the dense coarse particles to become an adsorbent with loose porous microstructure.FT-IR analysis shows that iron oxide formed in the iron salt impregnation process is mainly combined with O-H,Al-O and Si-O in the molecular sieve structure.The results of batch experiments with 4 mg L As^5+indicate that the removal rate increases by about 70%after the material modification.Moreover,the adsorption process is in accordance with the quasi second-order adsorption kinetics,and the correlation coefficient(R 2)is 0.99,indicating that the chemical adsorption plays an important role in the adsorption process.The Freundlich isotherm adsorption model fits the adsorption data well with a correlation coefficient(R 2)is 0.98,and the maximum adsorption capacity is calculated to be 9.9 mg g.Furthermore,the calculation of thermodynamic parametersΔG,ΔH andΔS find that temperature increase is favorable for adsorption,and the disorder degree between solid and liquid on the surface of the material increases during the reaction.Compared with FMS,FMMS can effectively improve the removal performance of As^3+.The initial concentrationof coexistence conditions wereρ(As^3+As^5+)=2.0,4.0,6.0 mg L,the removal rate of FMMS is increased by about 26.34%,28.06%and 28.09%,respectively.The research shows that the use of iron salt impregnation method to modify MS can effectively increase the adsorption capacity of As^5+and As^3+,and can give full play to the practical application value of the material.","PeriodicalId":21108,"journal":{"name":"环境科学研究","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44038089","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}

{"title":"Research Progress on the Effects of Atmospheric PM2.5 and High-Fat Diet on the Incidence of Asthma","authors":"李志鹏, 韩冰, 李志刚, 赵峰, 魏永杰","doi":"10.13198/J.ISSN.1001-6929.2020.06.08","DOIUrl":"https://doi.org/10.13198/J.ISSN.1001-6929.2020.06.08","url":null,"abstract":"Atmospheric PM2.5 exposure is associated with respiratory diseases,and a high-fat diet is also one of the triggers of asthma.In recent years,the prevalence of asthma has been on the rise in China.Discussion on the effects of atmospheric PM2.5,high-fat diet,and their synergistic effects on the prevalence of asthma may provide a new ideas for the interventional treatment of asthma.The present study summarized the effects of PM2.5 exposure and high-fat diet on asthma and the pathogenesis of asthma,and pointed out:(1)The particulate matter exposure can trigger the inflammatory response in the body and increase the risk of asthma.(2)A high-fat diet can cause inflammation through metabolic activation of immune-related signaling pathways in the body.(3)Both can affect asthma inflammation through the MyD88/ TLRs signaling pathway and Th1 /Th2.The study reveals:the mechanism of action of PM2.5 and high-fat diet on asthma is consistent,which may have a synergistic effect on human health.","PeriodicalId":21108,"journal":{"name":"环境科学研究","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47094188","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}

{"title":"Strategic Issues of Ecological Environment Protection in the Yangtze River Economic Belt","authors":"杨荣金, 孙美莹, 张乐, 张钰莹, 刘伟玲, 李莹杰","doi":"10.13198/J.ISSN.1001-6929.2020.05.36","DOIUrl":"https://doi.org/10.13198/J.ISSN.1001-6929.2020.05.36","url":null,"abstract":"The development of the Yangtze River Economic Belt is one of the major strategies for coordinated regional development of the country. It is required to protect the ecological environment,and take the road of ecological priority and green development. At present,the economic growth rate of the Yangtze River Economic Belt has slowed down. The industrial structure is continuously optimized. The urbanization is already in the late stage of rapid development. The emission intensity of major pollutants in the Yangtze River Economic Belt continued to decline. The water environment quality has improved significantly,but the water ecology situation is worrying. The continuous and steady improvement of the ecological environment quality has entered a critical period. Through the study of the situation of social economy and ecological environment,this paper proposes the strategic needs and strategic objectives of the future ecological environment protection of the Yangtze River Economic Belt,and puts forward four categories of strategies. The results showed that: (1) The strategic demands for ecological environmental protection in the Yangtze River Economic Belt are to shift from a single element,a single indicator,and some areas to a systematic protection and comprehensive restoration of water ecological environment. (2) The strategic objectives of ecological environmental protection are to shift from water environment quality improvement to water ecological environment security promotion. In the future,the goal will gradually turn to improving the ecological environment health. (3) The spatial control strategy needs to integrate multiple regional plans,and construct a unified division system of ecological environment spatial units in the Yangtze River Economic Belt with basin-region coordination,water-land integration,and mountain-sea unification. (4) The core of the industrial green development strategy is to strengthen prevention and control in related industries that affect the water ecological environment security. (5) The scientific and technological innovation strategy should highlight the role of research platforms to promote the collection and innovation of data,talents,technologies and achievements,and achieve the transformation of ecological environmental protection from investment-driven to technological innovation-driven. (6) The modern governance improvement strategy requires the Yangtze River Economic Belt to build a pilot demonstration belt of ecological civilization,take the lead in improving the system of ecological civilization,construct an ecological environment governance system and improve the capacity of ecological environment governance. According to the research,grasping the strategic demands and objectives of ecological environmental protection,implementing the strategies of spatial control, industrial green development, scientific and technological innovation, and modern governance improvement can more effectively support the in","PeriodicalId":21108,"journal":{"name":"环境科学研究","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42788895","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}

{"title":"Ventilation Frequency and Duration of Chinese Population Opening Window during the COVID-19 Epidemic","authors":"Fei Gao, Xiangyu Xu, Q. Guo, S. Cao, Jianing Wei, Bei-bei Wang, N. Qin, X. Duan","doi":"10.13198/J.ISSN.1001-6929.2020.06.15","DOIUrl":"https://doi.org/10.13198/J.ISSN.1001-6929.2020.06.15","url":null,"abstract":"Confined spaces increase the chance of aerosol infection, and window ventilation plays an important role in reducing the risk of infection and maintaining the fresh air required for human health In order to analyze the window opening patterns of people in different regions during the COVID-19 outbreak, information on the frequency and duration of window ventilation and the demographic information were obtained through an electronic questionnaire survey, which surveyed 7784 subjects in 31 provinces in China The ventilation behavior of different population and the main influencing factors were then analyzed The results shows that: (1) During the COVID-19 epidemic, 99 7% of the subjects opened windows for ventilation;Among them, 69 2% of the subjects had more than two times of daily ventilation, and 38 2% had more than three times of daily ventilation, indicating a significant difference in ventilation frequency between different groups (2) The daily ventilation duration of residents in each region was in the range of 93-126 min, and the ventilation duration for residents in the affected areas was longer Compared with the non-epidemic period, the ventilation time of residents in all regions decreased significantly during the epidemic period (3) The influencing factors of ventilation behavior of Chinese population during the epidemic mainly included the epidemic related factors and non-epidemic related factors Among them, the epidemic related factors included control measures in the community and the distribution of hospitals around the community The ventilation frequency was higher for the population, who resided in communities with epidemic control measures and nearby designated hospitals The non-epidemic related factors included the type of dwelling, floor and ambient temperature Compared with the units or apartments, the ventilation frequency of people living in bungalows was higher than those living in units or apartments (4) Residents living in the middle floor of a flat or apartment building had the longest ventilation time, while those living on the lower floor had the shortest ventilation time The window ventilation frequency and duration were positively correlated with the ambient temperature, that is, the ventilation frequency and duration of residents in areas with higher ambient temperature were higher than those in areas with lower ambient temperature This study indicates that 99 7% of the residents had window ventilation behavior, and the daily ventilation time in various regions was in the range of 93-126 min during the COVID-19 epidemic, which was shorter than that during the non-epidemic period © 2020, Editorial Board, Research of Environmental Sciences All right reserved","PeriodicalId":21108,"journal":{"name":"环境科学研究","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46595595","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}

{"title":"Protective Behavior of Chinese Population Wearing Masks during the COVID-19 Epidemic","authors":"S. Cao, D. Wen, Xing Chen, Jianing Wei, Bei-bei Wang, N. Qin, X. Duan","doi":"10.13198/J.ISSN.1001-6929.2020.06.18","DOIUrl":"https://doi.org/10.13198/J.ISSN.1001-6929.2020.06.18","url":null,"abstract":"As a physical means to block virus infection, masks can stop the spread of pathogens through droplets, and have a two-way protection Wearing masks is of great significant for the public to prevent the risk of novel coronavirus infection and maintain basic human health In order to find out the mask wearing behavior of Chinese residents during the COVID-19 epidemic, this study analyzed the behavioral characteristics of residents wearing masks in China's 31 provinces, and discussed the differences of the behavior of wearing masks of the groups in various potential infection risk on the basis of the survey on environmental exposure behavior patterns of Chinese population during COVID-19 epidemic The results show that: (1) During the COVID-19 epidemic, more than 99% of Chinese people wore masks outside their homes, which was significantly higher than that of non-epidemic period (16 05%);the highest proportion (100%) was the medical staff and the group who had extensive contact with people (2) Residents mainly had three main patterns to wear masks, i e , only surgical masks, only disposable surgical masks, and only surgical masks and disposable surgical masks, accounting for more than 60% of a total 31 mask wearing patterns (3) During the COVID-19 epidemic, there were significant differences in the proportion of wearing masks among different occupational groups, people belonging to different groups and people in different epidemical areas (4) During the COVID-19 epidemic, the replacement frequency of masks worn by Chinese residents was usually 4 and 24 hours, respectively (5) The proportion of people wearing masks outside was positively correlated with the severity of the COVID-19 epidemic Although there were differences of the epidemic distribution characteristics and control measures in different places, the proportion of residents wearing masks is high Specifically, the proportion of people wearing masks in their living areas with no suspected cases was higher than that with suspected cases, indicating that there may be a certain interaction between the behavior of wearing masks and changes in epidemics This study indicates that during the prevention and control of the COVID-19 epidemic, the mask wearing behavior of Chinese people was generally good © 2020, Editorial Board, Research of Environmental Sciences All right reserved","PeriodicalId":21108,"journal":{"name":"环境科学研究","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42020373","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}

{"title":"Investigation on and Protective Measures and Exposure Risks for the People Related to Medical Waste Disposal during the COVID-19 Epidemic","authors":"Fangyuan Zheng, Xiangyu Xu, S. Cao, X. Duan, Jin Ma, Xiao-Lin Zhao, Jian Xu, Fengchang Wu","doi":"10.13198/J.ISSN.1001-6929.2020.06.06","DOIUrl":"https://doi.org/10.13198/J.ISSN.1001-6929.2020.06.06","url":null,"abstract":"During the COVID-19, the production of medical waste increased sharply, which brought a challenge to the capacity of China's medical waste disposal and the protection of the group that received, transported and disposed of medical waste In order to study the potential risks and protection measures against exposure for the workers in the collection, transportation, temporary storage, and disposal of medical waste, ninety staff members from a typical medical waste disposal center in Zhejiang Province were selected as the research objects to study the personal protection level of staff in different types of work, as well as the influence of items or locations at risk of infection on their choice of protective measures The results show that among the 90 surveyed people, 98 9% of the staff wore medical respirators or full-face masks and half-masks during the work, 87 5% of the staff wore work clothes, 79 6% of the staff wore labor protection cap, 64 8% of workers chose to wear rubber gloves and protective boots for protection, and goggles (55 7%) and protective clothing (33 0%) were also worn when they were closely contact with medical waste At the end of a single task, 100% of the respondents chose to wash their hands with running water, soap, quick disinfectant or 0 3%-0 5% iodophor disinfectant or bathe, and 94 3% of the respondents disinfected their personal work items;all respondents would take protective measures such as washing hands, disinfecting items, ventilating after returning home The personal protection measures taken by different staff were mainly related to the items or locations that were exposed to risk of infection during the work process Among them, the staff who were in contact with high-risk items, turnover containers (barrels) or the outer surface and inner wall of disposable packaging containers were more inclined to a higher level of protective measures This research indicates that there is a significant difference between the qualified rate of protection and the type of work for the staff in this survey (P0 05) In the future, more detailed and specific policies and regulations should be formulated, and the management and training of the employees should be strengthened to increase their awareness of prevention and reduce the risk of occupational exposure © 2020, Editorial Board, Research of Environmental Sciences All right reserved","PeriodicalId":21108,"journal":{"name":"环境科学研究","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42435433","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}

{"title":"Transportation Activity Patterns of Chinese Population during the COVID-19 Epidemic","authors":"Nan Jiang, Sai Li, S. Cao, Jianing Wei, Bei-bei Wang, N. Qin, X. Duan","doi":"10.13198/J.ISSN.1001-6929.2020.06.16","DOIUrl":"https://doi.org/10.13198/J.ISSN.1001-6929.2020.06.16","url":null,"abstract":"In order to understand the travel frequency and transportation modes of the Chinese population during the COVID-19 epidemic, the travel information of 8330 residents in 31 provinces from February 25th to March 14th, 2020 was collected, and the factors influencing the travel frequency and transportation mode were analyzed According to the severity of the epidemic, 31 provinces were classified, and the difference in residents' transportation modes under different grades were analyzed and compared with those in non-epidemic periods The results show that: (1) During the COVID-19 epidemic, 75 1% of people had travel activities, among which 5 5% took several trips per day and 17 6% took fewer than one trip per week Public transportation and taxi with higher risk of infection were chosen by 6 3% and 4 0% of the population, respectively (2) The travel frequency and transportation modes of Chinese residents during the COVID-19 outbreak may be affected by demographic variables, such as gender, age, urban and rural areas, regions, local or nearby suspected/confirmed cases, and the severity of the epidemic in the provinces The travel frequency and transportation modes of people in some provinces such as Tibet Autonomous Region and Qinghai Province were less affected by the epidemic, while the travel frequency and transportation modes of residents in Hubei Province changed the most compared with the non-epidemic period (3) During the COVID-19 epidemic, the proportion of Chinese residents who chose to walk and travel by car (taxi and private car) was much higher than during the non-epidemic period, while the proportion of people who chose public transportation and bicycles or electric bicycle was lower than during the non-epidemic period This study found that the travel frequency and transportation modes of the Chinese population changed dramatically due to the COVID-19 epidemic © 2020, Editorial Board, Research of Environmental Sciences All right reserved","PeriodicalId":21108,"journal":{"name":"环境科学研究","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47473189","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}

{"title":"序言 《环境科学研究》新冠肺炎疫情与生态环境研究专刊","authors":"吴 丰昌","doi":"10.3724/SP.J.7102351697","DOIUrl":"https://doi.org/10.3724/SP.J.7102351697","url":null,"abstract":"","PeriodicalId":21108,"journal":{"name":"环境科学研究","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45840793","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}

{"title":"Preliminary Study on Environmental and Climatic Characteristics of Historical Infectious Diseases and Some Thoughts of COVID-19","authors":"Ying Wang, Dingyuan Liang, Yao Li, Zhang Haowen, W. Fan, Fengchang Wu","doi":"10.13198/J.ISSN.1001-6929.2020.05.46","DOIUrl":"https://doi.org/10.13198/J.ISSN.1001-6929.2020.05.46","url":null,"abstract":"The outbreak and pandemic of COVID-19 pose a serious threat to the safety of human society and examine the ability of public health care resources around the world to deal with the large sudden infectious diseases A review on the environmental and climatic characteristics related to historical infectious diseases will shed immediate light on the scientific research and control of COVID-19 Our results show that: (1) Historically, outbreaks of human-to-human coronavirus and orthomyxoviridae infectious diseases mainly occurred in the subtropical monsoon climate of the northern hemisphere in the winter and spring, while the outbreaks of flaviridae infectious diseases mostly occurred in tropical regions in hot and rainy summer and autumn (2) Global warming and extreme weather may exacerbate the outbreak and spread of infectious diseases (3) The impact of human activities on the ecosystem balance forces the habitat migration of virus hosts and the aggregation of different virus hosts, increasing the probability of virus mutation and the risk of infectious disease outbreaks The lessons from historical outbreak of infectious diseases suggest that suitable climate factors might be conducive to the outbreak and epidemics, while the outbreaks in tropical countries also indicate that it is necessary to scrutinize the roles of climate, environmental conditions and ecological factors in the global wave of COVID-19 Our study provides some useful insights for the prevention and control of COVID-19 plague and other potential pandemics in the future © 2020, Editorial Board, Research of Environmental Sciences All right reserved","PeriodicalId":21108,"journal":{"name":"环境科学研究","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66255634","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}

{"title":"Epidemic Situation, Prevention, Control of Influenza A and Its Enlightenment for COVID-19","authors":"Yao Li, Dingyuan Liang, Yunsong Mu, Jin Ma, Jiang Chang, Ying Wang","doi":"10.13198/J.ISSN.1001-6929.2020.06.12","DOIUrl":"https://doi.org/10.13198/J.ISSN.1001-6929.2020.06.12","url":null,"abstract":"COVID-19 has become a global epidemic, posing an unpredictable threat to human health In this study, we addressed the epidemic characteristics, driving factors, prevention and control measures of influenza A, a more common epidemic In addition, we reviewed the global efforts on how to prevent and control influenza effectively and related scientific research achievements, which aims to provide experience and suggestions for the prevention and control of COVID-19 The results show that: (1) Influenza A is a seasonal epidemic, affected by climatic, social political, cultural factors and others It is more contagious in low-temperature, low-humidity, densely populated environment (2) The prevention and control of influenza A mainly includes seasonal influenza virus surveillance, influenza virus ecological studies, broad-spectrum neutralizing antibodies and universal vaccines, as well as the etiological assessment of influenza pandemic risk Seasonal influenza virus surveillance is the core of public health policy formulation and follow-up scientific research (3) Similar to influenza A, the prevalence of COVID-19 is affected by climate factors such as temperature, as well as social, political, cultural and other factors, which needs to draw the lessons from the mature experience, technologies and platforms of influenza The combination of multiple actions, such as strengthening virus surveillance, conducting further research on virus ecology and etiological risk assessment and drug discovery is essential for early warning and prediction of the possible secondary wave of epidemics in the future Our study will provide direct inspiration for the prevention, control, prediction and early warning of COVID-19 and other epidemics in the future © 2020, Editorial Board, Research of Environmental Sciences All right reserved","PeriodicalId":21108,"journal":{"name":"环境科学研究","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47518792","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}