文档介绍：.
中国东部沿海地区高空颗粒物中水溶性离子的污染特征
The pollution feature of water-solubility ion in high altitude
particulate matter around e, and Ca" and Mg-* account for a very high rate in bigger size particles.
Key word: east littoral aircraft observalion particulate matter waier-soIubility ion pollution
feature
颗粒物中水溶性离子的种类和污染水平是表征大气颗粒物污染特征的重要指标 之一，通过水溶性离子的分析能够了解和掌握颗粒物的来源、污染水平和传输特性 等重要特征。自2000年以来，本课题组在我国东部沿海地区进行了大量空气污染物
的高空航测和地面同步监测，本文介绍有关颗粒物水溶性离子污染特征的研究结果。
The kinds and poHution level of water-solubility ion in particulate matter is one of the important index characterizing pollulion feature of air PM. The origin, pollution level and transformation speciality can be realized through analyzing water-solubility ion. A great deal aircraft observation and ground synchro monitoring on air poUulant were carried on by our topic group around east littoral in our country from 2000. and the research results of water-solubility ion's poHution feature in particulate matter are introduced in this paper.
L The method of sampling and analysis
1・1采样时间及飞行方式
LI Sampling time and flight manner
航测在2002年春季3月I日至4月1日进行，使用飞机为国产运一5B型单发 轻型运输机。飞行区域为中国东部沿海（自广东省珠海市至辽'宁省大连市的沿海区域, 选择6~7个中转机场）以及东北和华北沿海地区（辽亍省大连市东北沿海区域），总飞 行时间（包括试飞约1小时）约为49小时，飞行高度为地面至3000m之间的不同高 度。飞行高度和方位的记录使用中国大恒公司生产的GR-74型GPS定位系统，通过 GPS打计算机系统的联接可以得到每秒的飞行高度和经纬度。为配合航测，2002年 2月25日至3月16日在辽宇省大连市傅家庄和山东省青岛市田横岛设立了地面同步 监测点。
Air observation was carried out during Mar 1st and Apr 1st in airplane used was a Yun—5B type lightweight cargo-transport plane made in home. The flight zone was around east littoral in China(six to seven iransfer airdromes were selected around littoral between Zhuhai
Guangdong province and Dalian Liaoning province), north-east littoral and north litlorat(east littoral around DaLian Liaoning province), the total flight time(about 1 hour's test-fly included)was about fourty-nine hours, flight height was different between ground and 3000 meters high. GR-74 GPS made by China Dahcng company was used to recor