Comparative studies on organic chemical composition of atmospheric aerosols from Chinese 14 cities, Jeju Island and Chichi-Jima Island and their hygroscopic properties
中国14个城市及济州岛和父岛大气气溶胶有机化学成分及其吸湿特性对比研究
基本信息
- 批准号:17340166
- 负责人:
- 金额:$ 9.98万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (B)
- 财政年份:2005
- 资助国家:日本
- 起止时间:2005 至 2006
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Nation-wide studies of organic aerosols were conducted on a molecular level in 15 Chinese cities. The results showed strikingly high levels of organic compounds (e.g., annual concentrations of polycyclic aromatic hydrocarbons, phthalates, sugars and diacids are 110, 370, 400 and 830 ng m^3, respectively), especially in the midwest region during winter (up to 125 mg m^3 organic carbon). Fossil fuel combustion and/or biomass burning products are 3-30 times more abundant in winter than in summer. In contrast, significant quantity of phthalates (168-2200 ng m^3) was detected in summer. Concentrations of the pollutants are generally 1-3 orders of magnitude higher than those in developed countries. Their source strengths are characterized in winter by fossil fuel combustion, followed by secondary oxidation, plant wax emissions and biomass burning, whereas in summer they are characterized by secondary oxidation, followed by fossil fuel combustion and plastic emissions.
中国15个城市在分子水平上进行了全国范围内的有机气溶胶研究。结果表明,有机化合物的水平非常高(例如,多环芳烃、邻苯二甲酸酯、糖和二元酸的年浓度分别为110、370、400和830 ng m^3),特别是在中西部地区冬季(高达125 mg m^3的有机碳)。化石燃料燃烧和/或生物质燃烧产物在冬季的储量是夏季的3-30倍。相比之下,在夏季检测到大量的邻苯二甲酸盐(168-2200 ng m^3)。污染物的浓度一般比发达国家高1-3个数量级。它们的来源强度在冬季以化石燃料燃烧为特征,其次是二次氧化、植物蜡排放和生物质燃烧,而在夏季以二次氧化为特征,其次是化石燃料燃烧和塑料排放。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Photochemical production and loss of organic acids in high Arctic aerosols during long-range transport and polar sunrise ozone depletion events
- DOI:10.1016/j.atmosenv.2004.10.020
- 发表时间:2005-02
- 期刊:
- 影响因子:5
- 作者:K. Kawamura;Yoshie Imai;L. Barrie
- 通讯作者:K. Kawamura;Yoshie Imai;L. Barrie
Determination of low molecular weight dicarboxylic acids in seawater samples
海水样品中低分子量二羧酸的测定
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:河村 公隆;Gehui Wang;Marc Tedetti
- 通讯作者:Marc Tedetti
エアロゾルの大気環境影響(笠原三紀夫・東野達編)
气溶胶对大气环境的影响(笠原干雄、东野达主编)
- DOI:
- 发表时间:2007
- 期刊:
- 影响因子:0
- 作者:河村 公隆;Gehui Wang;Marc Tedetti;Michihiro Mochida;Haobo Wang;Haobo Wang;Kimitaka Kawamura;Kimitaka Kawamura;Gehui Wang;Masao Uchida;河村 公隆;河村 公隆
- 通讯作者:河村 公隆
Relationship between hygroscopicity and cloud condensation nuclei activity for urban aerosols in Tokyo
- DOI:10.1029/2005jd006980
- 发表时间:2006-12-07
- 期刊:
- 影响因子:4.4
- 作者:Mochida, Michihiro;Kuwata, Mikinori;Kondo, Yutaka
- 通讯作者:Kondo, Yutaka
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KAWAMURA Kimitaka其他文献
KAWAMURA Kimitaka的其他文献
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{{ truncateString('KAWAMURA Kimitaka', 18)}}的其他基金
Composition, origin, transformation and hygroscopic properties of organic aerosols in East Asia and the North Pacific
东亚和北太平洋有机气溶胶的成分、来源、转化和吸湿特性
- 批准号:
24221001 - 财政年份:2012
- 资助金额:
$ 9.98万 - 项目类别:
Grant-in-Aid for Scientific Research (S)
Chemical compositions, spatial distributions and hygroscopic properties of organic aerosols from East and South Asia
东亚和南亚有机气溶胶的化学成分、空间分布和吸湿特性
- 批准号:
19204055 - 财政年份:2007
- 资助金额:
$ 9.98万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Chemical composition and hygroscopic properties of secondary organic aerosol : Their impact on the atmospheric environment
二次有机气溶胶的化学成分和吸湿特性:对大气环境的影响
- 批准号:
14204055 - 财政年份:2002
- 资助金额:
$ 9.98万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
AMS radiocarbon measurements of individual organic molecules : making preparative capillary GC system and its application to geochemical samples
单个有机分子的 AMS 放射性碳测量:制备型毛细管气相色谱系统及其在地球化学样品中的应用
- 批准号:
10354009 - 财政年份:1998
- 资助金额:
$ 9.98万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Studies on chemistry and cycles of halogens in the troposphere
对流层中卤素的化学和循环研究
- 批准号:
10144101 - 财政年份:1998
- 资助金额:
$ 9.98万 - 项目类别:
Grant-in-Aid for Scientific Research on Priority Areas (A)
Organic geochemistry of polar ice and snow
极地冰雪的有机地球化学
- 批准号:
09304054 - 财政年份:1997
- 资助金额:
$ 9.98万 - 项目类别:
Grant-in-Aid for Scientific Research (A).
Organic Geochemical Studies of Polar Aerosols : Long distance transport and photochemical transformation of natural and anthropogenic materials
极地气溶胶的有机地球化学研究:天然和人为材料的长距离传输和光化学转化
- 批准号:
06453009 - 财政年份:1994
- 资助金额:
$ 9.98万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Particulate Organic Compounds and Their Behavior in Urban and Remote Atmosphere
颗粒有机化合物及其在城市和偏远大气中的行为
- 批准号:
01470041 - 财政年份:1989
- 资助金额:
$ 9.98万 - 项目类别:
Grant-in-Aid for General Scientific Research (B)