Lead isotope ratios in the urban air of eastern and central Russia
Lead isotope ratios in the urban air of eastern and central Russia
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DOI：
10.1016/s1352-2310(00)00341-1
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发表时间：
2001-05-01
影响因子：
5
通讯作者：
Uematsu, M
中科院分区：
文献类型：
--
作者：
Mukai, H;Machida, T;Uematsu, M
为了在铅同位素比率方面表征俄罗斯东部和中部城市的空气铅，在六个选定的城市和莫斯科收集了气溶胶样本，并通过将其与俄罗斯使用的矿石铅数据进行比较，研究了其铅浓度和同位素比率。所有俄罗斯东部城市（符拉迪沃斯托克、哈巴罗夫斯克和雅库茨克）都被发现具有与俄罗斯主要铅生产国哈萨克斯坦的矿石铅相似的同位素比率。在莫斯科收集的样本也显示出与俄罗斯东部城市相似的同位素比率。在这些城市，即使在冬天，煤燃烧对空气中铅的贡献也很小。这一观察结果表明，这些俄罗斯大气区铅的来源与铅产品（如含铅汽油）密切相关。俄罗斯东部三个城市的铅同位素比率与以前在日本报告的俄罗斯气团的值非常接近，这与瑞典的相同观测结果也很一致。然而，在俄罗斯中部城市克麦罗沃和尼日涅瓦托夫斯克观察到的铅同位素比率差异很大，这表明特定的铅排放，如使用前寒武纪矿石或独特的含铅汽油的工业活动，可能会导致大气中的铅。2001爱思唯尔科学有限公司版权所有。
In order to characterize airborne lead in eastern and central Russian cities in terms of lead isotope ratios, aerosol samples were collected at six selected cities and Moscow, and their lead concentrations and isotope ratios were studied by comparing them to the data of ore lead used in Russia. All eastern Russian cities (Vladivostok, Khabarovsk and Yakutsk) were found to have isotope ratios similar to those of ore leads in Kazakhstan, the major lead producer for Russia. Samples collected in Moscow also showed isotope ratios similar to those of eastern Russian cities. The contribution from coal combustion to airborne lead was considered to be small even in winter, in these cities. This observation suggested that the origin of lead in these Russian atmosphere regions is closely related to the lead products (e.g. leaded gasoline). The lead isotope ratios in three eastern Russian cities were very close to the value for Russian air mass reported previously in Japan, which were also in good agreement with the same observation in Sweden. However, considerably different lead isotope ratios were observed in central Russian cities, Kemerovo and Nizhnevartovsk, indicating that specific lead emissions, such as industrial activities using Precambrian-age ores or unique leaded gasoline, might contribute to the atmospheric lead. (C) 2001 Elsevier Science Ltd. All rights reserved.