CAJ | 학술논문

对海口市美舍河沉积物重金属进行分析，结果表明，沉积物重金属元素Cr、As和Cd的含量较高，并对美舍河沉积物重金属采用地质累积指数法和潜在生态风险评价法对其进行污染评价，研究结果表明，由地质累积指数可知：Cu、Zn和Pb元素属于无污染水平，其中Cu元素接近无污染到轻污染之间的水平；Ni元素属于轻污染水平；Cr和Cd元素属于轻污染到重污染之间的水平；As元素属于重污染水平；各重金属元素的污染程度顺序为：Zn<Pb<Cu<Ni<Cd<Cr<As.由潜在生态风险评价可知：美舍河沉积物重金属的主要污染因子为Cr，重金属影响因子的顺序为：Zn<Cu<Pb<Ni<Cd<As<Cr，各重金属元素潜在生态危害系数顺序为：Zn<Cu<Pb<Ni<Cr<As<Cd，该研究区潜在生态风险指数RI平均值为45.28，属于轻微生态危害范围.
대해구시미사하침적물중금속진행분석，결과표명，침적물중금속원소Cr、As화Cd적함량교고，병대미사하침적물중금속채용지질루적지수법화잠재생태풍험평개법대기진행오염평개，연구결과표명，유지질루적지수가지：Cu、Zn화Pb원소속우무오염수평，기중Cu원소접근무오염도경오염지간적수평；Ni원소속우경오염수평；Cr화Cd원소속우경오염도중오염지간적수평；As원소속우중오염수평；각중금속원소적오염정도순서위：Zn<Pb<Cu<Ni<Cd<Cr<As.유잠재생태풍험평개가지：미사하침적물중금속적주요오염인자위Cr，중금속영향인자적순서위：Zn<Cu<Pb<Ni<Cd<As<Cr，각중금속원소잠재생태위해계수순서위：Zn<Cu<Pb<Ni<Cr<As<Cd，해연구구잠재생태풍험지수RI평균치위45.28，속우경미생태위해범위.
The sediments of Meishe River were analyzed, the results showed that there exist higher content of heavy met-als Cr, As and Cd in the sediment. A series of samples collected during the survey in sediment in Meishe River are analyzed to reveal the content distribution of heavy metals. And by use of Geoaccumulation and Hakanson ecological risk, the pollu-tion of heavy metal in sediment were evaluated. The results showed that Cu, Zn and Pb elements are in pollution-free levels, among them Cu element is close to pollution-free to light pollution degree phase;Ni element is in light pollution level;Cr and Cd elements are in light pollution to heavy pollution stage;As element is in heavy pollution level;sequentially degree of contamination of heavy metals is: Zn<Pb<Cu<Ni<Cd<Cr<As. Hakanson ecological risk evaluation shows that the main pollution factor of heavy metal is Cr and the sequence of factor index is Zn<Cu<Pb<Ni<Cd<As<Cr. And poten-tial ecological risk is Zn<Cu<Pb<Ni<Cr<As<Cd. The average potential ecological risk is 45.28, and it has slight po-tential ecological risk.