Environmental Engineering Department, Civil Engineering Faculty, Yildiz Technical University, 34220, Davutpaşa-Esenler, Istanbul, Turkey.
Eurasia Institute of Earth Sciences, Istanbul Technical University, Istanbul, Turkey.
Environ Geochem Health. 2020 Aug;42(8):2471-2484. doi: 10.1007/s10653-019-00369-5. Epub 2019 Jul 12.
In this study, determination of possible sources, soil-air exchange direction, and spatial distribution of PAH concentrations was aimed. In this scope, soil samples were collected from 35 different points, which have the urban and rural characteristics, from European and Asian Sides in Istanbul. The average ∑PAH concentrations were found as 22.11 ng/g dw for urban site and 19.53 ng/g dw for rural site, respectively. The highest concentration was 279.5 ng/g dw. PAH concentrations were higher in urban site than rural site. Acenaphthene and benzo[k]fluoranthene were observed as the dominant species. PAH concentrations are observed higher mostly in north and west parts of European Side and south and east parts of Asian Side. There was net evaporation from soil to air for lower molecular weight PAHs with 2, 3 rings, while high molecular weight PAHs with 4, 5, 6 rings accumulated in the soil at both urban and rural sites. PAHs were mostly originated from coal burning and the use of diesel engine vehicles.
本研究旨在确定多环芳烃（PAH）浓度的可能来源、土壤-空气交换方向和空间分布。为此，从伊斯坦布尔欧洲区和亚洲区具有城市和农村特征的 35 个不同地点采集了土壤样本。城市点的∑PAH 浓度平均值为 22.11ng/gdw，农村点为 19.53ng/gdw。最高浓度为 279.5ng/gdw。城市点的 PAH 浓度高于农村点。苊和苯并[k]荧蒽被观察为主要物质。PAH 浓度在欧洲区的北部和西部以及亚洲区的南部和东部较高。具有 2 个和 3 个环的低分子量 PAH 从土壤向空气净蒸发，而具有 4、5 和 6 个环的高分子量 PAH 在城市和农村地区均在土壤中积累。PAH 主要来源于煤燃烧和柴油发动机车辆的使用。
