Onat Burcu, Alver Şahin Ülkü, Bayat Cuma
Istanbul University, Engineering Faculty, Environmental Engineering Department, 34320, Avcılar, Istanbul, Turkey.
J Environ Monit. 2012 May;14(5):1400-9. doi: 10.1039/c2em10792a. Epub 2012 Mar 28.
In this study, the size distribution of airborne particles and related heavy metals Co, Cd, Sn, Cu, Ni, Cr, Pb and V in two urban areas in Istanbul: Yenibosna and Goztepe, were examined. The different inhalable particles were collected by using a cascade impactor in eight size fractions (<0.4 μm, 0.4-0.7 μm, 1.1-2.1 μm, 2.1-3.3 μm, 3.3-4.7 μm, 4.7-5.8 μm, 5.8-9 μm and >9 μm) for six months at each station. Samples were collected on glass fiber filters and filters were extracted and analyzed using ICP-MS. Log-normal distributions showed that the particles collected at the Yenibosna site have a smaller size compared to the Goztepe samples and the size distribution of PM was represented the best by the tri-modal. The average total particle concentrations and standard deviations were obtained as 67.7 ± 17.0 μg m(-3) and 82.1 ± 21.2 μg m(-3), at the Yenibosna and Göztepe sites, respectively. The higher metal rate in fine and medium coarse PM showed that the anthropogenic sources were the most significant pollutant source. Principal component analysis identified five components for PM namely traffic, road dust, coal and fuel oil combustion, and industrial.
在本研究中，对伊斯坦布尔两个市区（耶尼博斯纳和戈兹特佩）空气中颗粒物的粒径分布以及相关重金属钴（Co）、镉（Cd）、锡（Sn）、铜（Cu）、镍（Ni）、铬（Cr）、铅（Pb）和钒（V）进行了检测。在每个站点使用串联撞击器在八个粒径分级（<0.4μm、0.4 - 0.7μm、1.1 - 2.1μm、2.1 - 3.3μm、3.3 - 4.7μm、4.7 - 5.8μm、5.8 - 9μm和>9μm）下收集不同的可吸入颗粒物，为期六个月。样本收集在玻璃纤维滤膜上，滤膜经萃取后使用电感耦合等离子体质谱仪（ICP - MS）进行分析。对数正态分布表明，与戈兹特佩的样本相比，在耶尼博斯纳站点收集的颗粒物粒径较小，且细颗粒物（PM）的粒径分布以三峰分布最为典型。耶尼博斯纳和戈兹特佩站点的平均总颗粒物浓度及标准差分别为67.7±17.0μg m⁻³和82.1±21.2μg m⁻³。细颗粒物和中粗颗粒物中较高的金属含量表明人为源是最主要的污染源。主成分分析确定了细颗粒物的五个成分，即交通源、道路扬尘、煤炭和燃料油燃烧源以及工业源。
