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路书山 | 刘浩 | 赵燕洲 | 屠继军 | 曹慧

引用次数: 0

Assessments of ecological quality in Jinjiang district of Chengdu city using the FVC and RSEI models 基于FVC和RSEI模型的成都市锦江区生态质量评价

生态与农村环境学报 Pub Date : 2021-04-25 DOI: 10.19741/J.ISSN.1673-4831.2020.0511

Wang Zhi-chao, He Xin-hua

引用次数: 1

Characteristics of carbonaceous aerosols in ambient PM2.5 during the COVID-19 period in Nanjing 新冠肺炎疫情期间南京市PM2.5中碳质气溶胶特征

生态与农村环境学报 Pub Date : 2021-01-01 DOI: 10.19741/j.issn.1673-4831.2020.0857

Y. Ji, Q. Y. Zhao, F. Chen, D. Chen

{"title":"Characteristics of carbonaceous aerosols in ambient PM2.5 during the COVID-19 period in Nanjing","authors":"Y. Ji, Q. Y. Zhao, F. Chen, D. Chen","doi":"10.19741/j.issn.1673-4831.2020.0857","DOIUrl":"https://doi.org/10.19741/j.issn.1673-4831.2020.0857","url":null,"abstract":"In order to explore the variations of carbon components[including organic carbon (OC) and element carbon (EC)] in PM2.5 at the urban area of Nanjing during the breakout of COVID-19 period, PM2.5, OC and EC mass concentrations were measured by online monitoring from January to February 2020. Compared to the concentrations before the emergency response, the PM2.5 concentration after the emergency response was reduced by 41.2% and EC reduced by 57.9%. These results indicate that the shutdown significantly reduced PM2.5 and EC concentrations, but the OC concentration increased. Before the emergency response, the OC and EC concentrations were low in daytime and high at night and early morning. After the emergency response, the average concentration of EC only had a slight change within a day and maintained at low concentration level, OC showed a curve trend which was higher in the afternoon and lower in morning and evening. The significant decrease of PM2.5 concentration after the emergency response period led to the increasing of light radiation intensity, which promoted the formation of secondary organic carbon (SOC). The SOC concentration increased when the PM2.5 and EC concentrations decreased, and the correlation between OC and EC also decreased significantly. © 2021, China Environmental Science Press. All rights reserved.","PeriodicalId":35331,"journal":{"name":"生态与农村环境学报","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68159835","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

Recent progress in study on technology for pretreating corn stalk to improve biogas production capacity of anaerobic digesters. 玉米秸秆预处理提高厌氧沼气池产气能力技术研究进展。

生态与农村环境学报 Pub Date : 2015-09-05 DOI: 10.11934/J.ISSN.1673-4831.2015.05.004

Zhao Chen, Cui Xinyue, Liu Guangqing, Zhang Ruihong, Chen Chang

引用次数: 2

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