厦门春季低空大气酸沉降垂直分布的研究  

Research on the Vertical Distribution of Acid Deposition in Low Altitude Atmosphere in Spring in Xiamen Area

作　　者：齐立文[1] 汤大钢[1] 刘红杰[1] 崔平[1] 熊鉴洋 

机构地区：[1]中国环境科学研究院大气所

出　　处：《环境科学研究》1996年第5期45-50,共6页Research of Environmental Sciences

摘　　要：１９９３年３月２８日～４月７日，在厦门后坑村，对不同高度的低空（１０００ｍ以下）大气中气态污染物、云水和雨水进行了垂直分布观测。结果表明：厦门后坑村春季大气中的ＳＯ２，ＮＯｘ，Ｏ３的日均值分别是０．０６９，０．０１５，０．０６０ｍｇ／ｍ３，基本符合国家大气质量一级标准，而Ｈ２Ｏ２的日均值为１．７０μｇ／ｍ３，是地面大气中Ｈ２Ｏ２浓度的５．３倍，说明其大气氧化活性较强；空中雨水大部分酸化，而云水全部酸化，且ＮＯ－３浓度较高。A field survey of vertical distribution for gaseous pollutants, cloud water and rain water on different heights in low altitude atmosphere (under 1000m) at Houkeng village in Xiamen area was carried out from March 28 to April 7 in 1993. The results show that, in spring atmosphere at Houkeng village in Xiamen area, the day average concentrations of SO 2, NO x and O 3 are 0.069, 0.015 and 0.060 mg/m 3 respectively, which are basically up to the Class I of National Air Quality Standards; but the day average concentration of H 2O 2 is 1.70 μg/m 3, which is 5.3 times of that on ground atmosphere and means the high oxidizability and activity; a large part of rain water is acidified, but all of cloud water is acidified and the concentration of NO - 3 in cloud water is high, which explains that acid rain in spring is serious.

关 键 词：酸沉降 云水 酸化 垂直分布 厦门市 气态污染物 

分 类 号：X517[环境科学与工程—环境工程]