地质与资源2019，Vol.28Issue(5)：477-481,5.
辽东湾北部浅海沉积物铅地球化学评价
GEOCHEMICAL EVALUATION OF LEAD IN THE NERITIC SEDIMENTS OF NORTHERN LIAODONG BAY
摘要
Abstract
Based on the test of surface sediment samples from northern Liaodong Bay,the paper discusses the distribution characteristics of Pb in shallow water and its environmental ecological effects. The results show that Pb in the neritic sediments is 13.9×10-6-344×10-6 (averagely 28.4×10-6),mainly existing in residual form,Fe‐Gn oxidation form and carbonate bounded form. High in the west and low in the east in terms of distribution,the anomaly is obvious and concentrated in the southwest of Jinzhou Bay. The anomaly sources are mainly composed of pollution discharge from zinc plant and sewage and soot emissions from other industries. The environmental quality of the anomaly area belongs to Class III and III+ sediments,covering an area about 12 km2,accounting for 0.36α of the total study area. By comparison with the sediment quality baseline values (ERL/ERG and TEL/PEL) derived by the biological effect database method,the potential biological toxicity of Pb in three samples from Jinzhou Bay is relatively high,and adverse biological effects may occur frequently.关键词
沉积物/铅/地球化学特征/异常评价/辽东湾Key words
sediment/lead/geochemical characteristics/anomaly evaluation/Liaodong Bay分类
天文与地球科学引用本文复制引用
王琦..辽东湾北部浅海沉积物铅地球化学评价[J].地质与资源,2019,28(5):477-481,5.基金项目
中国地质调查局国土资源大调查项目"辽宁省辽河流域农业地质调查"(编号200414200004)资助. （编号200414200004）
