单 位：
辽宁省地质矿产调查院;辽宁省地质矿产研究院
关键词：
大气干湿沉降;沉降通量;重金属;大气环境
摘 要：
[目的]探讨大气干湿沉降向城市系统输入重金属元素通量特征。[方法]根据沈阳市不同行政区采样点重金属元素沉降通量,分析沈阳市不同行政区重金属大气干湿沉降污染的空间分布特征。[结果]在不同的采样点,大气干湿沉降中元素的年沉降通量差异较大,但其在沈阳市不同行政区分布规律大致相同。Cd、Pb、Hg的年沉降通量在各地区的分布分别表现为:铁西区>皇姑区>沈河区>和平区>大东区>东陵(浑南)区>于洪区,铁西区>沈河区>皇姑区>和平区>东陵区>于洪区>大东区>浑南区,铁西区>沈河区>皇姑区>和平区>大东(东陵)区>于洪(浑南)区。大气降尘污染的空间分布与污染源地域分布具有一致性,即工业区>商业区或交通区>文化区>居民区>郊区。[结论]该研究为大气干湿沉降污染的控制与治理提供了理论参考。
译 名：
Flux Characteristics of Heavy Metals Inputted by Atmospheric Dry and Wet Deposition to a City System——A Case Study of Shenyang City
作 者：
LING Shuang;Institute of Geology and Mineral Resources of Liaoning Province;
关键词：
Atmospheric dry and wet deposition;;Deposition flux;;Heavy metals;;Atmospheric environment
摘 要：
[Objective] The study aimed to discuss the flux characteristics of heavy metals inputted by atmospheric dry and wet deposition to a city system. [Method] Based on the deposition flux of heavy metals at different sampling points of Shenyang City,the spatial distribution of heavy metal pollution caused by atmospheric dry and wet deposition in Shenyang City was analyzed. [Result] At different sampling points, there were great differences in annual deposition flux of each heavy metal among various districts of Shenyang,but the spatial distribution of annual deposition flux of heavy metals in various districts was similar. For instance,the spatial distribution of annual deposition flux of Cd,Pb and Hg in various districts was shown as follows: Tiexi > Huanggu > Shenhe > Heping > Dadong > Dongling (Hunnan) > Yuhong,Tiexi > Shenhe > Huanggu > Heping > Dongling > Yuhong > Dadong > Hunnan,and Tiexi > Shenhe > Huanggu > Heping > Dadong (Dongling) > Yuhong (Hunnan). In a word,the spatial distribution of atmospheric dust pollution was consistent with the geographical distribution of pollution sources,namely industrial area > commercial or traffic zone > cultural district > residential area > suburb. [Conclusion] The research could provide scientific references for the prevention and control of atmospheric dust pollution.
