Organochlorine pesticides in the sewerage system of Konya-Turkey

In this research, wastewater samples were collected at the general outlet and three different points of the main drainage channel of the sewerage system and analyzed for organochlorine pesticides, such as lindane, mirex, aldrin, heptachlor, methoxychlor, o,p-DDE, p,p-DDD, p,p-DDT and dieldrin. For determination and quantification of the pesticide standards method 6630 was used along with GC/ECD analysis. The recovery rates of solid phase and liquid-liquid extraction methodologies were compared, and changed between 35%-100% for solid phase and 70%-100% for liquid-liquid extractions. In this work, the maximum organochlorine pesticide contents of Konya wastewater varied between 0.02-7.87 mug/L for lindane, 0.13-21.35 mug/L for heptachlor, 0.004-10.13 mug/L for aldrin, <0.0002-1.72 mug/L for dieldrin, <0.01-26.13 mug/L for metboxychlor, <0.0002-1.32 mug/L for mirex, 0.016-4.39 mug/L for o,p-DDE, <0.0002-3.93 mug/L for p,p-DDD, and <0.01-2.28 mug/L for p,p-DDT.