洋河水庫底泥重金屬污染及其潛在生態(tài)危害評價

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【摘    要】： 為了解洋河水庫底泥沉積物中重金屬含量及其潛在生態(tài)危害程度，共采集了21個底泥樣品，測試了鎘、汞、砷、銅、鋅、鉛、鎳、鉻共8種重金屬元素，采用地積累指數(shù)法和潛在生態(tài)危害指數(shù)法進行分析和評價，結(jié)果表明，洋河水庫部分區(qū)域底泥存在重金屬污染。

【關(guān)鍵詞】： 底泥；重金屬污染；洋河水庫；生態(tài)危害

【中圖分類號】：X524 【文獻標(biāo)志碼】：C 【文章編號】：1008-3197（2023）06-72-05

【DOI編碼】：10.3969/j.issn.1008-3197.2023.06.020

Heavy Metal Pollution and Potential Ecological Hazard Assessment of

Yanghe Reservoir Sediment

LI Wei， WANG Xiao， FAN Ruipeng

（China Water Resources Beifang Investigation， Design and Research Co. Ltd.， Tianjin 300222， China）

【Abstract】：In order to understand the contents of heavy metals in the sediments of the Yanghe Reservoir and their potential ecological risk， 21 sediment samples were collected from the Yanghe Reservoir， and 8 heavy metals， including cadmium， mercury， arsenic， copper， zinc， lead， nickel and chromium， were tested. The geoaccumulation index method and the potential ecological risk index method were used to analyze and evaluate the heavy metal pollution of the Yanghe reservoir. The results showed that the sediments in some areas of Yanghe Reservoir were polluted by heavy metals.

【Key words】：sediment；heavy metal pollution；Yanghe Reservoir；ecological risk

沉積物是水庫生態(tài)系統(tǒng)的重要組成部分，它不僅作為“匯”累積水體中重金屬，當(dāng)條件（氧化還原電位、溫度、pH值、溶解氧等）改變時，又可作為“源”將重金屬再次釋放到水體中，對水生生物產(chǎn)生毒害，并通過食物鏈傳遞，對人體健康構(gòu)成威脅[1]。（剩余3308字）