The origin of atmospheric particles in Paris: a view through carbon and lead isotopes
The origin of atmospheric particles in Paris: a view through carbon and lead isotopes
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DOI：
10.1016/j.atmosenv.2003.11.001
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发表时间：
2004-03
影响因子：
5
通讯作者：
D. Widory;Stéphane Roy;Y. Moullec;G. Goupil;A. Cocherie;C. Guerrot
中科院分区：
文献类型：
--
作者：
D. Widory;Stéphane Roy;Y. Moullec;G. Goupil;A. Cocherie;C. Guerrot
城市大气中颗粒物的来源及其各种来源的影响仍有争议。这种不确定性不能通过单独使用“经典”化学参数来减轻，需要补充指数。我们表明，耦合碳和铅同位素的使用允许识别气溶胶源在大气中的巴黎，允许半量化各自的贡献。这两个研究地点，代表背景污染和道路交通繁忙的影响，都显示了柴油机废气的主导地位，以碳的气溶胶（无论是PM2.5或PM10）的水平，而工业是铅的主要载体，与一般的贡献上级50%。在过去10年中，无机阶段的起源从道路交通转向工业活动。
The origin of particulate matter in the urban atmosphere and the impact of its various sources are still subject to debate. This uncertainty cannot be alleviated by the sole use of ‘classic’ chemical parameters, creating a need for complementary indexes. We show that the use of coupled carbon and lead isotopes allows the identification of aerosol sources in the atmosphere of Paris, permitting a semi-quantification of their respective contributions. The two study sites, representative of background pollution and the influence of heavy road traffic, both show the domination of diesel exhaust fumes to the level of carbon in aerosols (either PM2.5or PM10), while industry is the main vector for lead, with a contribution generally superior to 50%. Within the last 10 years, the origin of the inorganic phase shifted from road traffic towards industrial activities.