Altun Omer, Saçan Melek Türker, Erdem Ayten Kimiran
Department of Biology, Faculty of Science, Istanbul University, 34134, Vezneciler, Istanbul, Turkey.
Environ Monit Assess. 2009 Apr;151(1-4):345-62. doi: 10.1007/s10661-008-0276-8. Epub 2008 Apr 12.
Physical and chemical parameters have been analyzed in water samples from a brackish water lagoon, Küçükçekmece, located on the western outskirts of Istanbul. Samples were collected every two months for a year from nine sampling stations. Of the parameters measured, temperature, pH, salinity, nitrate and phosphate showed changes when compared with the previously published data. The lagoon was found eutrophic as it was reported previously. Sulphate and COD levels were higher when compared with the standards established by the Turkish Water Pollution and Control Regulation. Additionally, concentrations of heavy metals (Cd, Co, Cr, Cu, Mn, Ni, Pb, Zn) in water and bottom sediments were measured and compared with the standards established by the Turkish Water Pollution and Control Regulation and with the previously published data. The results were analysed statistically with respect to location and any relationships between the concentration of the elements in corresponding water and sediment samples were examined. Principal Component Analysis of water samples allowed us to discriminate three areas affected mainly by heavy metal contamination, possibly due to industrial, commercial and/or urban activities. Generally, the concentrations of the heavy metals were higher at stations near the three estuaries, suggesting a direct influence of the three creeks on the pollution of the Küçükçekmece Lagoon. Although elevated levels of Cd were recorded in several water samples, it was not detected in sediment. On the other hand, a particularly high level of Cr pollution was recorded most of the water and sediment samples.
对位于伊斯坦布尔西郊的咸水湖库库克切克梅杰（Küçükçekmece）采集的水样进行了物理和化学参数分析。一年中每隔两个月从九个采样站采集样本。在所测量的参数中，与之前公布的数据相比，温度、pH值、盐度、硝酸盐和磷酸盐呈现出变化。如之前报道的那样，该泻湖被发现处于富营养状态。与土耳其水污染与控制法规制定的标准相比，硫酸盐和化学需氧量（COD）水平更高。此外，还测量了水和底部沉积物中重金属（镉、钴、铬、铜、锰、镍、铅、锌）的浓度，并与土耳其水污染与控制法规制定的标准以及之前公布的数据进行了比较。对结果按位置进行了统计分析，并检查了相应水和沉积物样本中元素浓度之间的任何关系。对水样进行的主成分分析使我们能够区分出三个主要受重金属污染影响的区域，这可能是由于工业、商业和/或城市活动所致。一般来说，在三个河口附近的站点重金属浓度较高，这表明三条小溪对库库克切克梅杰泻湖的污染有直接影响。尽管在几个水样中记录到镉含量升高，但在沉积物中未检测到。另一方面，在大多数水和沉积物样本中记录到铬污染水平特别高。
