作　　者： ; ; ; ; ; ;

机构地区： 东北师范大学城市与环境科学学院

出　　处： 《东北师大学报（自然科学版）》 2012年第3期130-135,共6页

摘　　要： 为了解水平中尺度气象条件控制下连续空间区域内大气汞污染特征,使用车载塞曼效应汞分析仪(Zeeman RA915+),由吉林省东部汪清县不间断行车至西部镇赉县,同步测定了近1 000km沿线"城市—乡村"连续空间大气汞质量浓度分布情况.结果表明:研究区域内大气汞含量平均值为(5.99±3.19)ng/m3,最高值出现在城市区(长春市),最低值出现在乡村区(汪清县,敦化市和白城市辖区内).研究区域内大气汞含量空间分布特征表现为由中部地区向东西部地区呈逐渐递减趋势;规模较大的城镇区高于规模较小的城镇区,城镇区显著高于乡村区;东部地区与西部地区具有不同的大气汞浓度空间特征,上述特征与区域内大气汞含量受燃煤汞排放过程控制有关.研究区域城镇全域(含乡村)大气汞含量特征表现为长春地区(9.07±6.36)ng/m3,吉林地区(7.02±2.70)ng/m3,延边地区(5.08±2.06)ng/m3,松原与白城地区(4.70±0.98)ng/m3;城镇辖区内(不含乡村)大气汞含量长春市(16.41±8.65)ng/m3最高,镇赉县(3.47±0.60)ng/m3最低. In order to find out the pollution characteristics of atmospheric mercury concentration in the continuous space on the control of meso scale meteorology conditions,with on-vehicle Zeeman RA915＋ mercury analyzer along the route from Wangqing county to Zhenlai county traveling incessantly,the distribution characteristics of atmospheric mercury concentration in a distance of about 1 000 km from the city to countryside have been determined synchronously.The results show：in survey region the mean value of atmospheric mercury contents are（5.99±3.19）ng/m3,and the max appeared in cities（Changchun） and the min are in the country being located in Wangqing,Dunhua and Baicheng.The spatial distribution characteristics of atmospheric mercury concentration in the survey region is that from middle part to east and west of Jilin province the contents of atmospheric mercury reduced gradually.The city is larger,the contents of atmospheric mercury is higher.Furthermore,they are higher in urban district of cities than in countries.The wave motion characteristics of atmospheric mercury in the east are different from that in the west.The above characteristics are because that the atmospheric mercury contents are under the control of the mercury release from coal combustion in the researched area.The contents of atmospheric mercury in the survey region is that in Changchun region it is（9.07±6.36）ng/m3,in Jilin region it is（7.02±2.70）ng/m3,in Yanbian region it is（5.08±2.06）ng/m3 and in Songyuan and Baicheng region they are（4.70±0.98）ng/m3.In all the urban district of cities the highest value is（16.41±8.65）ng/m3 in Changchun and the lowest is（3.47±0.60）ng/m3 in Zhenlai.

关 键 词： 大气汞 空间分布 连续空间 中尺度 吉林省

领　　域： [环境科学与工程]