首页|期刊导航|中国地球化学学报(英文版)|China' s First Exploration of Chukchi Sea and Its Adjacent Waters in the Arctic- A Study on Lead Geochemistry of Atmospheric Aerosol
中国地球化学学报(英文版)2003，Vol.22Issue(1)：23-29,7.
China' s First Exploration of Chukchi Sea and Its Adjacent Waters in the Arctic- A Study on Lead Geochemistry of Atmospheric Aerosol
China' s First Exploration of Chukchi Sea and Its Adjacent Waters in the Arctic- A Study on Lead Geochemistry of Atmospheric Aerosol
摘要
Abstract
The Pb concentrations of atmospheric aerosol in the Chukchi Sea of the Arctic varywithin the range of 0. 167 -0.962 ng/m3, with an average of 0.532 ng/m3. These concentra-tion values are 200 times higher than the natural background values of snow samples there. Cal-culation of the Pb enrichment factor of aerosol indicates that the ocean- and continent-sourcelead account for 9.23% and 0.01%, respectively, but industrially released Pb accounts formore than 90% of the atmospheric Pb. The Pb isotopic composition of aerosol has revealed thatthe sources of lead from industrial lead that causes pollution include mainly the western part ofNorth America, East Europe and the former Soviet Union. The calculation of the total falloutflux of Pb indicates that the mean value of input flux into the Chukchi Sea is 0.02 mgm-2a-1,equivalent to that of southern Pacific but slightly lower than that of northern Indian Sea andsouthern Atlantic. It is evidenced that the Pb input flux into the Chukchi Sea is far lower thanthat off the Baltic Sea, the North Sea and the Mediterranean Sea.关键词
marine atmospheric aerosol/lead source/Arctic Chukchi Sea/global changeKey words
marine atmospheric aerosol/lead source/Arctic Chukchi Sea/global change分类
天文与地球科学引用本文复制引用
朱赖民,陈立奇..China' s First Exploration of Chukchi Sea and Its Adjacent Waters in the Arctic- A Study on Lead Geochemistry of Atmospheric Aerosol[J].中国地球化学学报(英文版),2003,22(1):23-29,7.基金项目
This research project was granted jointly by the National Natural Science Foundation of China ( No. 40006005 ) , China' s FirstArctic Exploration Program and the Key Project under the Young Scientists Foundation of the State Ocean Administration (99401). （ No. 40006005 ）
