Distribution Characteristics and Pollution Evaluation of Arsenic in the Surface Seawater of Li'an Lagoon
In order to understand the arsenic pollution of Li'an lagoon,the arsenic content of the surface seawater of the lagoon was monitored.The results showed that the content of arsenic(Ⅲ)ranged from 0.112 to 0.685 μg/L,arsenic(V)0.563～1.218 μg/L,total arsenic1.041～1.515 μg/L,which was spatially described as the highest value in the near shore and the lowest value in the middle of the lagoon.Arsenic pollution was mainly caused by arsenic(V).The degree of arsenic pollution and potential ecological risks were evaluated by Single factor pollution index method,Hakanson potential ecological risk index method,and correlation analysis method.The pollution evaluation results showed that the arsenic was basically a slightly enriched,slightly ecologically harmful degree,and the potential harm was small.The arsenic concentration in the water quality of Li'an lagoon meets the first-class benchmark of China's national marine water quality criteria.
NETL
NSTL
万方数据
