"Development and application of carbon and Pb isotopes analysis
「"Development and application of carbon and Pb isotopes analysis 」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 and Pb isotopes analysis technology in fine particles" ， 欄位Project Subject的內容是"The objective of this study is to investigate the potential pollution sources of PM2.5 in Kaohsiung and Pingtung with the isotopic fingerprints. During the period from the spring (March) of 2020 to the summer (August) of 2020, ambient PM2.5 samples were collected from 8 sampling stations (Ciaotou, Zuoying, Fengshan, Siaogang, Daliao, Linyuan, Pingtung, and Chaozhou) in Kaohsiung and Pingtung, respectively. In addition, we also collected PM2.5 samples from 5 specific sources: a coal-fired power plant, an incinerator, an oil refinery plant, a plastic factory, and a paper-making factory in 2020. All the PM2.5 samples were characterized with the measurements of water-soluble ions, organic carbon, elemental carbon, crustal elements, heavy metals, and isotopic compositions of carbon (δ13C and 14C) and lead (206Pb, 207Pb, and 208Pb).
The results revealed that condensable particulate matter (CPM) was predominant particles in the PM2.5 emitted from stationary pollution sources. Moreover, the level of inorganic CPM was higher than that organic CPM in all stationary pollution sources. The chemical compositions from five pollution sources were: (1) coal power-fired plant: sulfate was important specie, predominant elementals included Mg, Ni, Cu, Zn, Mo, Cd, Sn, Sb, Tl, Pb, Cr, As, Y, Se, Ge, and Ga, average 206Pb/207Pb and 208Pb/207Pb were 1.2430 (1.1759-1.3056) and2.4507 (2.4373~2.4796), respectively; (2) incinerator: sulfate, Ca+2, and Cl- were important species, predominant elementals included Na, K, Ca, Ba, Co, Ni, and Zn, average 206Pb/207Pb and 208Pb/207Pb were 1.1479 (1.1439-1.1522) and 2.4281 (2.4217~2.4365), respectively; (3) oil-refinery plant: EC, sulfate, and Ca+2 were important species (69%), predominant elementals included Na, Ni, Zn, Mo, Cd, Sn, Sb, and Se, average 206Pb/207Pb and 208Pb/207Pb were 1.2663 (1.2200-1.3070) and 2.4206 (2.4113-2.4259), respectively; (4) plastic factory: sulfate was important species (31%), predominant elementals included Co, Ni, Cu, Zn, Mo, Cd, Sn, Tl, Pb, Cr, As, and Se, average 206Pb/207Pb and 208Pb/207Pb were 1.1715 (1.1594-1.1847) and 2.4241 (2.4198-2.4282), respectively; (5) paper-making factory: sulfate and Ca+2 were important species (10%), predominant elementals included Ni, Zn Cd, Sn, Sb, and Se, average 206Pb/207Pb and 208Pb/207Pb were 1.2067 (1.1713-1.2342) and 2.4336 (2.4308-2.4359), respectively.
The average level of ambient PM2.5 from all sampling sites was 20.1 ± 11.3 μg/m3, which lower than national standard (35 μg/m3). The major constituents of the ambient PM2.5 in the study area included sulfate, nitrate, ammonium, and organic carbon, which accounted for 19%, 24%, 14%, and 24% of the PM2.5 mass, respectively. The contributions of fossil (16%) and modern (14%) carbon were similar in the six sampling sites in Kaohsiung. Modern carbon was a predominant carbonaceou aerosol in Pingtung and Chaozhou sampling sites (modern carbon: 15%; fossil carbon: 14%). It was found from the chemical analysis that the concentrations of inorganic secondary aerosols (sulfate, nitrate, and ammonium) and fossil/modern carbonaceous aerosols were elevated during high PM2.5 episodes. These results implied that photochemical reactions and burning activities of fossil/modern carbon were important factors influencing the PM2.5 in the study areas.
The averages of δ13C for ambient PM2.5 are -25.7‰ (-34.0 to -21.0‰) and -28.3‰ (-38.2 to -20.3‰) in the spring and summer, respectively. The average 206Pb/207Pb ratios were 1.1493 (1.1021-1.1581) and 1.1525 (1.0897-1.2081) in the spring and summer, respectively, and 208Pb/207Pb ratios were 2.4251 (2.3768-2.4393) and 2.4247 (2.3677-2.4570), respectively. The variation of δ13C and Pb isotopic compositions were larger, which means the pollution sources were unstable in Kaohsiung and Pingtung for carbon and Pb. In comparison, the values of isotopic compositions were simil..." ， 欄位Project Year的內容是2020 ， 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" ， 欄位Reporting download URL的內容是https://epq.epa.gov.tw/project/filedownload.aspx?fid=235659 ， 欄位Publish Date的內容是20210131 。
Project Title
"Development and application of carbon and Pb isotopes analysis technology in fine particles"
Project Subject
"The objective of this study is to investigate the potential pollution sources of PM2.5 in Kaohsiung and Pingtung with the isotopic fingerprints. During the period from the spring (March) of 2020 to the summer (August) of 2020, ambient PM2.5 samples were collected from 8 sampling stations (Ciaotou, Zuoying, Fengshan, Siaogang, Daliao, Linyuan, Pingtung, and Chaozhou) in Kaohsiung and Pingtung, respectively. In addition, we also collected PM2.5 samples from 5 specific sources: a coal-fired power plant, an incinerator, an oil refinery plant, a plastic factory, and a paper-making factory in 2020. All the PM2.5 samples were characterized with the measurements of water-soluble ions, organic carbon, elemental carbon, crustal elements, heavy metals, and isotopic compositions of carbon (δ13C and 14C) and lead (206Pb, 207Pb, and 208Pb). The results revealed that condensable particulate matter (CPM) was predominant particles in the PM2.5 emitted from stationary pollution sources. Moreover, the level of inorganic CPM was higher than that organic CPM in all stationary pollution sources. The chemical compositions from five pollution sources were: (1) coal power-fired plant: sulfate was important specie, predominant elementals included Mg, Ni, Cu, Zn, Mo, Cd, Sn, Sb, Tl, Pb, Cr, As, Y, Se, Ge, and Ga, average 206Pb/207Pb and 208Pb/207Pb were 1.2430 (1.1759-1.3056) and2.4507 (2.4373~2.4796), respectively; (2) incinerator: sulfate, Ca+2, and Cl- were important species, predominant elementals included Na, K, Ca, Ba, Co, Ni, and Zn, average 206Pb/207Pb and 208Pb/207Pb were 1.1479 (1.1439-1.1522) and 2.4281 (2.4217~2.4365), respectively; (3) oil-refinery plant: EC, sulfate, and Ca+2 were important species (69%), predominant elementals included Na, Ni, Zn, Mo, Cd, Sn, Sb, and Se, average 206Pb/207Pb and 208Pb/207Pb were 1.2663 (1.2200-1.3070) and 2.4206 (2.4113-2.4259), respectively; (4) plastic factory: sulfate was important species (31%), predominant elementals included Co, Ni, Cu, Zn, Mo, Cd, Sn, Tl, Pb, Cr, As, and Se, average 206Pb/207Pb and 208Pb/207Pb were 1.1715 (1.1594-1.1847) and 2.4241 (2.4198-2.4282), respectively; (5) paper-making factory: sulfate and Ca+2 were important species (10%), predominant elementals included Ni, Zn Cd, Sn, Sb, and Se, average 206Pb/207Pb and 208Pb/207Pb were 1.2067 (1.1713-1.2342) and 2.4336 (2.4308-2.4359), respectively. The average level of ambient PM2.5 from all sampling sites was 20.1 ± 11.3 μg/m3, which lower than national standard (35 μg/m3). The major constituents of the ambient PM2.5 in the study area included sulfate, nitrate, ammonium, and organic carbon, which accounted for 19%, 24%, 14%, and 24% of the PM2.5 mass, respectively. The contributions of fossil (16%) and modern (14%) carbon were similar in the six sampling sites in Kaohsiung. Modern carbon was a predominant carbonaceou aerosol in Pingtung and Chaozhou sampling sites (modern carbon: 15%; fossil carbon: 14%). It was found from the chemical analysis that the concentrations of inorganic secondary aerosols (sulfate, nitrate, and ammonium) and fossil/modern carbonaceous aerosols were elevated during high PM2.5 episodes. These results implied that photochemical reactions and burning activities of fossil/modern carbon were important factors influencing the PM2.5 in the study areas. The averages of δ13C for ambient PM2.5 are -25.7‰ (-34.0 to -21.0‰) and -28.3‰ (-38.2 to -20.3‰) in the spring and summer, respectively. The average 206Pb/207Pb ratios were 1.1493 (1.1021-1.1581) and 1.1525 (1.0897-1.2081) in the spring and summer, respectively, and 208Pb/207Pb ratios were 2.4251 (2.3768-2.4393) and 2.4247 (2.3677-2.4570), respectively. The variation of δ13C and Pb isotopic compositions were larger, which means the pollution sources were unstable in Kaohsiung and Pingtung for carbon and Pb. In comparison, the values of isotopic compositions were simil..."
Project Year
2020
Organizer
"Department of Environmental Monitoring ＆amp; Information Management"
Executive Unit
"中央研究院"
Reporting download URL
Publish Date
20210131
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