Τίτλος:
Transboundary atmospheric lead pollution
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
A high-temporal resolution collection technique was applied to refine aerosol sampling in Jerusalem, Israel. Using stable lead isotopes, lead concentrations, synoptic data, and atmospheric modeling, we demonstrate that lead detected in the atmosphere of Jerusalem is not only anthropogenic lead of local origin but also lead emitted in other countries. Fifty-seven percent of the collected samples contained a nontrivial fraction of foreign atmospheric lead and had 206Pb/207Pb values which deviated from the local petrol-lead value (206Pb/207Pb = 1.113) by more than two standard deviations (0.016). Foreign 206Pb/207Pb values were recorded in Jerusalem on several occasions. The synoptic conditions on these dates and reported values of the isotopic composition of lead emitted in various countries around Israel suggest that the foreign lead was transported to Jerusalem from Egypt, Turkey, and East Europe. The average concentration of foreign atmospheric lead in Jerusalem was 23 ± 17 ng/m3, similar to the average concentration of local atmospheric lead, 21 ± 18 ng/m3. Hence, the load of foreign atmospheric lead is similar to the load of local atmospheric lead in Jerusalem.
Συγγραφείς:
Erel, Y.
Axelrod, T.
Veron, A.
Mahrer, Y.
Katsafados, P.
Dayan, U.
Περιοδικό:
Environmental science and technology
Λέξεις-κλειδιά:
Transboundary atmospherics, Atmospheric aerosols; Isotopes; Lead, Air pollution, gasoline; lead; lead, aerosol composition; atmospheric pollution; lead; transboundary pollution, aerosol; air pollution; air sampling; article; Eastern Europe; Egypt; geography; Israel; lead poisoning; optical resolution; standard; Turkey (republic); air; air pollutant; city; environmental monitoring; theoretical model, Air Movements; Air Pollutants, Environmental; Cities; Environmental Monitoring; Israel; Lead; Models, Theoretical; Air Movements; Air Pollutants; Cities; Environmental Monitoring; Israel, Israel
