洋河水庫(kù)底泥重金屬污染及其潛在生態(tài)危害評(píng)價(jià)
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【摘 要】： 為了解洋河水庫(kù)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(gè)底泥樣品，測(cè)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(jìn)行分析和評(píng)價(jià)，結(jié)果表明，洋河水庫(kù)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(kù)；生態(tài)危害
【中圖分類號(hào)】：X524 【文獻(xiàn)標(biāo)志碼】：C 【文章編號(hào)】：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(kù)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(shí)，又可作為“源”將重金屬再次釋放到水體中，對(duì)水生生物產(chǎn)生毒害，并通過(guò)食物鏈傳遞，對(duì)人體健康構(gòu)成威脅[1]。（剩余3308字）