廣州大氣細粒子中有機碳、元素碳和水溶性有機碳的分佈特徵

黃虹, 曹軍驥, 曾寶強, 李順誠, 何建輝, 鄒長偉, 鄒世春, 李詩敏

Research output: Contribution to journalArticles

Abstract

在廣州市中山大學採樣點進行了為期1年的大氣細粒子(PM₂ꓸ₅)採樣,監測分析得到PM₂ꓸ₅ 及有機碳(OC)、元素碳(EC)和水溶性有機碳(WSOC)等組分的質量濃度,並進行了比較和評價分析。結果表明廣州市細粒子碳污染較嚴重。對OC、EC和WSOC質量濃度的月變化和季節變化特徵進行了討論,並分析了原因。OC、EC濃度相關性好,表明OC、EC來源大部分相同。根據OC/EC比值,估算二次有機碳(SOC)量,結果是SOC占OC的1/3。討論了SOC和SOC/OC比值的季節分佈,結果證明SOC夏季生成比冬季多。
Daily PM₂ꓸ₅ samples were collected at Sun Yat-sen University in Guangzhou city, lasting 1 year. The loaded samples were weighted for PM₂ꓸ₅ mass concentration, and analyzed for organic carbon(OC), elemental carbon(EC), and water-soluble organic carbon(WSOC). Monthly and seasonal distribution characters of PM₂ꓸ₅ and OC, EC, WSOC were discussed and the results obtained in this study were compared with others, showing severe carbonaceous pollution in Guangzhou. OC-EC relationship was good, indicating most of sources of OC and EC was the same. Secondary organic carbons(SOC) were estimated based on OC/EC ratio. SOC contributed average 1/3 to OC in PM₂ꓸ₅. SOC and SOC/OC ratio seasonal distributions were investigated, and the results clemonstrated that SOC formed more in summer than in winter. Copyright © 2010 武漢大學;北京大學;南京大學.
Original languageChinese
Pages (from-to)255-260
Journal分析科學學報
Volume2010
Issue number3
Publication statusPublished - Jun 2010

Citation

黃虹、曹軍驥、曾寶強、李順誠、何建輝、鄒長偉等(2010):廣州大氣細粒子中有機碳、元素碳和水溶性有機碳的分佈特徵,《分析科學學報》,2010(3),頁255-260。

Keywords

  • 大氣細粒子
  • 有機碳
  • 元素碳
  • 水溶性有機碳
  • PM₂ꓸ₅
  • Orgainc carbon
  • Elemental carbon
  • Water-soluble organic carbon
  • Alt. title: Characterization of organic carbon, elemental carbon and water-soluble organic carbon in PM₂ꓸ₅ of Guangzhou city