Transboundary Atmospheric Lead Pollution

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• 作者：Yigal Erel ; Tamar Axelrod ; Alain Veron ; Yitzak Mahrer ; Petros Katsafados ; and Uri Dayan
• 刊名：Environmental Science & Technology
• 出版年：2002
• 出版时间：August 1, 2002
• 年：2002
• 卷：36
• 期：15
• 页码：3230 - 3233
• 全文大小：214K
• 年卷期：v.36,no.15(August 1, 2002)
• ISSN：1520-5851

文摘

A high-temporal resolution collection technique wasapplied to refine aerosol sampling in Jerusalem, Israel.Using stable lead isotopes, lead concentrations, synopticdata, and atmospheric modeling, we demonstrate that leaddetected in the atmosphere of Jerusalem is not onlyanthropogenic lead of local origin but also lead emitted inother countries. Fifty-seven percent of the collectedsamples contained a nontrivial fraction of foreign atmosphericlead and had ²⁰⁶Pb/²⁰⁷Pb values which deviated from thelocal petrol-lead value (²⁰⁶Pb/²⁰⁷Pb = 1.113) by more than twostandard deviations (0.016). Foreign ²⁰⁶Pb/²⁰⁷Pb valueswere recorded in Jerusalem on several occasions. Thesynoptic conditions on these dates and reported values ofthe isotopic composition of lead emitted in variouscountries around Israel suggest that the foreign lead wastransported to Jerusalem from Egypt, Turkey, and EastEurope. The average concentration of foreign atmosphericlead in Jerusalem was 23 ± 17 ng/m³, similar to theaverage concentration of local atmospheric lead, 21 ± 18 ng/m³. Hence, the load of foreign atmospheric lead issimilar to the load of local atmospheric lead in Jerusalem.