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| Polar Organic Compounds in Fine Particles from the New York, New Jersey, and Connecticut Regional Airshed | |
| 项目编号 | R832165 |
| Monica Mazurek | |
| 项目主持机构 | University of Arizona |
| 开始日期 | 2005 |
| 结束日期 | 2007-12-01 |
| 英文摘要 | The three main goals of this project are: 1) to identify and measure the ambient abundances of polar organic compounds found as PM2.5 in the NY, NJ and CT regional airshed using Liquid Chromatography/Mass Spectrometry (LCMS) chemical analysis; 2) to measure and identify both known and potential secondary organic aerosol source markers found within the fine particle acidic organic fraction; and 3) to identify emissions of polar organic compounds from primary sources, including vehicular sources and wood combustion.Archived filters collected as part of theSpeciation of Organics for Apportionment of PM-2.5 (SOAP) study will be evaluated. The fine particle filters were collected on an identical 24-hr sampling schedule as the PM-2.5 Speciation Trends Network from May 2002 through May 2003 at four sites in the NY City metropolitan area. The LCMS analytical work will expand the chemical profiles for PM2.5 polar organic compounds with new information on the abundance and chemical composition of fine particle organic acids and bases. LCMS analyses will target specific groups of acidic organic compounds such as C3-C9 dicarboxylic acids, benzene dicarboxylic acids, and substituted phenols. Basic organic compounds (reduced nitrogen containing compounds) will be analyzed by LCMS under positive mode ionization conditions to determine the complex mixture distribution and abundance of PM basic organic compounds.LCMS analyses of fine particles from the metropolitan NY airshed will expand the chemical profiles for PM2.5 polar organic compounds with new information on the abundance and chemical composition of fine particle organic acids and bases. This molecular-level technology for polar organic compounds will improve current information on the chemical makeup of fine PM that is water-soluble and likely to be involved in atmospheric haze formation and more rapidly absorbed within the human respiratory tract. The expanded chemical information for polar organic compounds will enhance present technology for determining the abundance and molecular composition of fine particle secondary organic compounds and primary emission sources from the New York metropolitan receptor sites. |
| 英文关键词 | ambient air;fine particles;PM2.5;water soluble;sources;emissions;primary;secondary;polar organic compounds;organics;organic carbon;carbonaceous;organic acids;organic bases;reduced nitrogen compounds;carboxylic acids;dicarboxylic acids;aromatic compounds;PAHs;heterocylic PAHs;nitro aromatic compounds;chemical markers;tracers;molecular analysis;mass spectrometry;liquid chromatography;LC/MS;atmospheric chemistry;chemical;toxics;particulates;atmospheric removal;wet deposition;dry deposition;atmospheric transport;exposure;health effects;ecological effects;human health;Northeast;New York;NY;New Jersey;NJ;Connecticut;CT;visibility;air quality management;fine particle control |
| 学科分类 | 0805 - 大气科学;08 - 地球科学 |
| 资助机构 | US-EPA |
| 项目经费 | 449150 |
| 国家 | US |
| 语种 | 英语 |
| 文献类型 | 项目 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/72916 |
| 推荐引用方式 GB/T 7714 | Monica Mazurek.Polar Organic Compounds in Fine Particles from the New York, New Jersey, and Connecticut Regional Airshed.2005. |
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