Ozkoc Hülya Boke, Bakan Gulfem, Ariman Sema
Department of Environmental Engineering, Faculty of Engineering, Ondokuz Mayis University, 55139, Kurupelit, Samsun, Turkey.
Environ Geochem Health. 2007 Feb;29(1):59-68. doi: 10.1007/s10653-006-9064-y. Epub 2007 Jan 4.
Sediment, mussel, and seawater samples were collected three times during 2001-2003 at nine sampling stations along the mid-Black Sea coast of Turkey. The samples were analyzed with GC-ECD for contents of various organochlorine pesticides (OCPs) in the environment. DDT and its metabolites were detected at concentrations significantly above the detection limits. The highest concentrations of DDT metabolites measured in the sediment and mussel samples were 35.9 and 14.0 ng/g wet weight respectively. Considerable levels of aldrin, dieldrin, endrin, heptachlor epoxide, lindane, endosulfan sulphate, and HCB were also detected in the sediment, mussel, or seawater samples. Although these persistent toxic compounds have been banned for some years in Turkey, they may still be used illegally in some regions, contributing to their significant levels in the environment. The biota-sediment accumulation factor (BSAF) estimated for DDT and its metabolites in mussels was 2.9, which is nearly two times higher than the benchmark of 1.7. In spite of such high BSAF values observed for these toxic compounds, their levels in mussels were significantly below the international legal limits recommended by the Food and Agriculture Organization of the United Nations. Edible biota from the waterbodies examined may thus still be considered safe for human consumption at this time. However, as pollutants can biomagnify through the food chain over time, further routine sampling and analysis of biota along the Black Sea coast are warranted in order to better assess the threat of OCPs to public health in the region.
2001年至2003年期间，在土耳其黑海中部海岸的9个采样站对沉积物、贻贝和海水样本进行了三次采集。利用气相色谱 - 电子捕获检测器（GC - ECD）对环境中各种有机氯农药（OCPs）的含量进行了分析。检测到滴滴涕（DDT）及其代谢物的浓度显著高于检测限。在沉积物和贻贝样本中测得的滴滴涕代谢物的最高浓度分别为35.9和14.0纳克/克湿重。在沉积物、贻贝或海水样本中还检测到了相当水平的艾氏剂、狄氏剂、异狄氏剂、环氧七氯、林丹、硫丹硫酸盐和六氯苯。尽管这些持久性有毒化合物在土耳其已被禁用数年，但在一些地区仍可能被非法使用，导致它们在环境中的含量较高。贻贝中滴滴涕及其代谢物的生物群 - 沉积物积累因子（BSAF）估计为2.9，几乎是1.7这一基准值的两倍。尽管观察到这些有毒化合物的BSAF值如此之高，但它们在贻贝中的含量仍显著低于联合国粮食及农业组织建议的国际法定限值。因此，此时所检测水体中的可食用生物群仍可被认为对人类消费是安全的。然而，由于污染物会随着时间在食物链中生物放大，有必要对黑海沿岸的生物群进行进一步的常规采样和分析，以便更好地评估有机氯农药对该地区公众健康的威胁。
