广东微量元素科学
廣東微量元素科學
엄동미량원소과학
GUANGDONG TRACE ELEMENTS SCIENCE
2014年
7期
1-5
,共5页
李红玉%赵彦龙%梁永津%刘胜玉%李亚军
李紅玉%趙彥龍%樑永津%劉勝玉%李亞軍
리홍옥%조언룡%량영진%류성옥%리아군
重金属%北江%沉积物%生态风险
重金屬%北江%沉積物%生態風險
중금속%북강%침적물%생태풍험
heavy metals%beijiang river%sediment%ecological risk
通过北江干流水体沉积物重金属含量，研究其典型污染物的潜在生态风险。采集了北江干流韶关至清远段7份沉积物样品，经混酸消解后，以电感耦合等离子体质谱仪测定沉积物中重金属含量，并对沉积物重金属分布特征进行了分析。同时利用Hakanson 的潜在生态危害指数（ RI）评价模式，对北江干流沉积物重金属生态风险进行了评价。评价结果表明，北江干流沉积物中重金属综合生态危害程度均表现为很高级别，其生态危害因子Pb、 Cd已成为北江干流突发性水污染事故潜在预警因子。
通過北江榦流水體沉積物重金屬含量，研究其典型汙染物的潛在生態風險。採集瞭北江榦流韶關至清遠段7份沉積物樣品，經混痠消解後，以電感耦閤等離子體質譜儀測定沉積物中重金屬含量，併對沉積物重金屬分佈特徵進行瞭分析。同時利用Hakanson 的潛在生態危害指數（ RI）評價模式，對北江榦流沉積物重金屬生態風險進行瞭評價。評價結果錶明，北江榦流沉積物中重金屬綜閤生態危害程度均錶現為很高級彆，其生態危害因子Pb、 Cd已成為北江榦流突髮性水汙染事故潛在預警因子。
통과북강간류수체침적물중금속함량，연구기전형오염물적잠재생태풍험。채집료북강간류소관지청원단7빈침적물양품，경혼산소해후，이전감우합등리자체질보의측정침적물중중금속함량，병대침적물중금속분포특정진행료분석。동시이용Hakanson 적잠재생태위해지수（ RI）평개모식，대북강간류침적물중금속생태풍험진행료평개。평개결과표명，북강간류침적물중중금속종합생태위해정도균표현위흔고급별，기생태위해인자Pb、 Cd이성위북강간류돌발성수오염사고잠재예경인자。
Through analyzing the heavy metals concentrations of the sediments in the beijiang river to researches the potential ecological risk of heavymetals in sediment .Seven sediments were collected from shaoguan city to qingyuan city in the beijiang river .The heavy metals concentrations of the sediments were determinated by ICP -MS, following digestion of the sediments with various acids .The distribution characteristics of heavy metals in the sediments were analyzed .The potential ecological risk of heavy metals in the sediments of beijiang river was calculated by using hankanson ecological risk index methods.The results showed that the sediments of beijiang river were polluted by heavy metals in rather high degree and caused considerable potential ecological risk .Morever , Pb and Cd had became the potential predictors of sudden water pollution accidents of beijiang river .
