"Development and application of carbon isotopes analysis technol
「"Development and application of carbon isotopes analysis technol」於資料集「EPQSummary_EnvironmentalMonitoringAndTesting」由單位「行政院環境保護署」的陳先生所提供，聯繫電話是02-2311-7722#2386，最近更新時間為：2023-07-30 01:01:45。 欄位Project Title的內容是"Development and application of carbon isotopes analysis technology in fine particles" ， 欄位Project Subject的內容是"The objectives of this study was to analyze the characteristics of carbon and lead isotope composition in fine particulate matters (PM2.5) and, in turn, identify the potential sources of PM2.5 in the central-southern Taiwan area with the isotopic fingerprints.During the period from the spring of 2018 to the summer of 2018, the ambient PM2.5 samples were collected at 5 sampling stations (Fengyuan, Dali, Shula, Changhua, and Xianxi sampling stations). In addition, this study also collected PM2.5 samples from 3 specific sources: coal-fired power plant, steel plant, and incinerator. The results reveal that the metals were the predominant species in the PM2.5 emitted from three specific sources. The particulate carbon emitted from the coal-fired power plant and steel plant were composed mostly of fossil carbon. The major constituents of the ambient PM2.5 in the study area included nitrate, sulfate, ammonium, and carbon. These results implied that photochemical reactions and burning activities were important cases of high PM2.5 level in the Taichung and Changhua areas. The averages of δ13C for ambient PM2.5 are -25.7‰ (-28.2 to -23.6‰) and -25.1‰ (-28.7 to -20.7‰) in the spring and summer, respectively. The pMC measurements indicated that the contributions from both fossil carbon and modern carbon were similar. The 206Pb/207Pb ratios were 1.1522 (1.1415~1.1638) and 1.1522 (1.1415~1.1638) in the spring and summer, respectively, and 208Pb/207Pb ratios were 2.4335 (2.4145~2.4507) and 2.4335 (2.4145~2.4507). Our results indicated that biomass burning, steel plant, coal-fired power plant, and incinerator were major pollution sources in south-central Taiwan area based on isotopic compositions and PMF analysis. In this study, we also compared the results on the pollution source identification between isotopic compositions and PMF. We found that the combination of carbon isotope and PMF can provide clear information on pollution source identification for carbon. However, it is necessary to use other technology for Pb pollution source identification." ， 欄位Project Year的內容是2018 ， 欄位Organizer的內容是"Department of Environmental Monitoring ＆amp; Information Management" ， 欄位Executive Unit的內容是"中央研究院 環境變遷研究中心" ， 欄位Reporting download URL的內容是https://epq.epa.gov.tw/project/filedownload.aspx?fid=187883 ， 欄位Publish Date的內容是20190201 。
Project Title
"Development and application of carbon isotopes analysis technology in fine particles"
Project Subject
"The objectives of this study was to analyze the characteristics of carbon and lead isotope composition in fine particulate matters (PM2.5) and, in turn, identify the potential sources of PM2.5 in the central-southern Taiwan area with the isotopic fingerprints.During the period from the spring of 2018 to the summer of 2018, the ambient PM2.5 samples were collected at 5 sampling stations (Fengyuan, Dali, Shula, Changhua, and Xianxi sampling stations). In addition, this study also collected PM2.5 samples from 3 specific sources: coal-fired power plant, steel plant, and incinerator. The results reveal that the metals were the predominant species in the PM2.5 emitted from three specific sources. The particulate carbon emitted from the coal-fired power plant and steel plant were composed mostly of fossil carbon. The major constituents of the ambient PM2.5 in the study area included nitrate, sulfate, ammonium, and carbon. These results implied that photochemical reactions and burning activities were important cases of high PM2.5 level in the Taichung and Changhua areas. The averages of δ13C for ambient PM2.5 are -25.7‰ (-28.2 to -23.6‰) and -25.1‰ (-28.7 to -20.7‰) in the spring and summer, respectively. The pMC measurements indicated that the contributions from both fossil carbon and modern carbon were similar. The 206Pb/207Pb ratios were 1.1522 (1.1415~1.1638) and 1.1522 (1.1415~1.1638) in the spring and summer, respectively, and 208Pb/207Pb ratios were 2.4335 (2.4145~2.4507) and 2.4335 (2.4145~2.4507). Our results indicated that biomass burning, steel plant, coal-fired power plant, and incinerator were major pollution sources in south-central Taiwan area based on isotopic compositions and PMF analysis. In this study, we also compared the results on the pollution source identification between isotopic compositions and PMF. We found that the combination of carbon isotope and PMF can provide clear information on pollution source identification for carbon. However, it is necessary to use other technology for Pb pollution source identification."
Project Year
2018
Organizer
"Department of Environmental Monitoring ＆amp; Information Management"
Executive Unit
"中央研究院 環境變遷研究中心"
Reporting download URL
Publish Date
20190201
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