城市、郊区和农村地区干沉降物中镉、铅、砷和汞的通量、变异性及来源。
Fluxes, variability and sources of cadmium, lead, arsenic and mercury in dry atmospheric depositions in urban, suburban and rural areas.
机构信息
Polar Research Institute of China, Shanghai 200136, China.
出版信息
Environ Res. 2012 Feb;113:28-32. doi: 10.1016/j.envres.2012.01.001. Epub 2012 Jan 26.
In China's largest city, Shanghai, dry deposition fluxes of Cd, Pb, As and Hg were 137, 19354, 2897 and 9.4 μgm(-2)a(-1), respectively in an urban area, intermediate in a suburban area, and 51.7, 5311, 1703 and 7.3 μgm(-2)a(-1), respectively in a rural area. Enrichment factors were Cd>Pb>As>Hg. Seasonal variations of metals differed: Pb and As were dominated by fossil fuel combustion, Cd was related to industrial pollution, and natural source controlled Hg levels.
在中国最大的城市上海，市区、郊区和农村的干沉降通量分别为 Cd137、Pb19354、As2897 和 Hg9.4μg·m(-2)·a(-1)、51.7、5311、1703 和 7.3μg·m(-2)·a(-1)。富集因子为 Cd>Pb>As>Hg。金属的季节变化不同：Pb 和 As 主要受化石燃料燃烧的控制，Cd 与工业污染有关，而 Hg 水平则受自然源的控制。
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