The areal distributions of the soil organochlorine pesticide (OCP) levels were investigated at adjacent and surrounding sites of the obsolete pesticide stockpile warehouse in Kocaeli, Türkiye. OCP levels in soil at neighboring sampling locations (positioned at 0.4 to 3 km from the stockpile) varied from 0.4 to 9 µg/kg and 4.2 to 2226 µg/kg (dry weight) for ΣHCHs and ΣDDXs, respectively. Levels at adjacent locations (positioned within 20 m from the stockpile) were considerably higher, varying from 74 to 39,619 µg/kg and 1592 to 30,419 µg/kg for ΣHCHs and ΣDDXs, respectively. Levels of OCPs dropped abruptly with the horizontal distance from the stockpile and had different transect profiles. The enantiomer fractions (EFs) near the stockpile range from 0.494 to 0.521, 0.454 to 0.515, and 0.483 to 0.533 for α-HCH, o,p′-DDT, and o,p′-DDD, respectively. These near-racemic EFs suggested that observed soil OCP levels were mainly influenced by recent emissions from the stockpile. A comparison of OCP compositions observed in the soil at the present study with the technical HCHs and DDTs revealed that the material in the stockpile primarily contains byproducts that were discarded during DDT and Lindane production at the adjacent plant instead of their technical mixtures.

对土耳其科贾埃利废弃农药库存仓库邻近和周边地点土壤有机氯农药 (OCP) 水平的区域分布进行了调查。邻近采样点（距离库存 0.4 至 3 公里）土壤中的 ΣHCH 和 ΣDDX 的 OCP 水平分别为 0.4 至 9 µg/kg 和 4.2 至 2226 µg/kg（干重）。邻近地点（距库存 20 m 以内）的浓度要高得多，ΣHCH 和 ΣDDX 的浓度分别为 74 至 39,619 µg/kg 和 1592 至 30,419 µg/kg。OCP 的水平随着与库存的水平距离的增加而急剧下降，并且具有不同的横断面剖面。α -HCH、o,p '-DDT 和o,p '-DDD靠近库存的对映体分数 (EF) 范围分别为 0.494 至 0.521、0.454 至 0.515 和 0.483 至 0.533 。这些近外消旋的 EF 表明，观测到的土壤 OCP 水平主要受到近期库存排放的影响。将本研究中在土壤中观察到的 OCP 成分与技术六氯环己烷和滴滴涕进行比较表明，库存中的材料主要含有邻近工厂生产滴滴涕和林丹期间丢弃的副产品，而不是其技术混合物。