Concentration and distribution of heavy metals (lead, cadmium, chromium, copper, nickel, zinc) in Karachi shore and offshore sediments
Concentration and distribution of heavy metals (lead, cadmium, chromium, copper, nickel, zinc) in Karachi shore and offshore sediments
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卡拉奇海岸和近海沉积物中重金属（铅、镉、铬、铜、镍、锌）的浓度和分布
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
G. H. Kazi
中科院分区：
文献类型：
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作者：
M. Saleem;G. H. Kazi
一项对沿海和近海地区沉积物中重金属污染水平的测量表明，在马诺拉海峡和卡拉奇东海岸附近发现了高浓度的重金属。与沿海地区相比，近海地区的重金属浓度相对较低。结果表明，污水和工业废物是沿海地区重金属污染的主要来源。沉积物中重金属浓度为：铬10.4-33.69、镍13.3-47.6、铅10.0-39.04、镉0.08-0.21、锌7.4-73.2、铜9.44-18.56 mg/kg。在近海地区，观察到铜与有机碳、碳酸钙与镉之间存在很强的相关性。在海岸地区，镍、铬、锌、铬和铜之间存在这种相关性。卡拉奇。与其他大陆沿海地区相比，海岸被视为中度污染。
A study to measure the heavy metal pollution level in the sediment of coastal and offshore area indicates that high concentration of heavy metals were found around Manora channel and eastern coast of Karachi. In comparison with coastal areas, relatively low concentration of heavy metals was recorded in the offshore area. The result shows that sewage and industrial wastes are the main source of heavy metal pollution in the coastal area. The concentration of heavy metals in the sediments is as follows: Chromium 10.4-33.69, nickel 13.3-47.6, lead 10.0-39.04, cadmium 0.08-0.21, zinc 7.4-73.2 and copper 9.44-18.56 mg/kg. In the offshore areas strong correlation was observed between copper and organic carbon, and calcium carbonate and cadmium. In the shore area such correlation has been recorded among nickel, chromium, zinc, and chromium and copper. The Karachi. coast is viewed as moderately polluted when compared to other continental coastal areas.