海南核电工程取排水对邻近海域海水水质的影响

Effects of water intake and drainage from the nuclear power project in Hainan provinceon water quality in adjacent sea areas

随着海洋生态文明建设的持续推进,滨海核(火)电厂对海洋生态环境的影响越发引起重视。本研究于2016年至2017年,以连续观测和大面观测的方式分别对海南核电工程取排水口和邻近海域48个站位的海水水质情况进行调查,并以此评价电厂取排水对水质的影响。结果显示:海南核电工程运行1年内,取排水口水质较好,各项水质指标均符合第一类或第二类海水水质标准,未见富营养化;邻近海域海水水质总体状况较好,绝大多数指标符合第一类或第二类海水水质标准,个别站位秋季和冬季发生轻度富营养化,主要与季风造成的工业污染物输运和陆源营养盐的输入有关。本研究发现海南核电工程邻近海域海水水质整体较好,该工程运行期内对水质影响较小。

With the continuous advancement of marine ecological civilization construction,the influence of coastal nuclear(fire)power plants on marine ecological environment has been paid more and more attention.This study investigated systematically the water quality of water intake and drainage,as well as 48 stations in the sea areas near the nuclear power project in Hainan from 2016 to 2017,and evaluated the effects of water intake and drainage from the nuclear power project on water quality.The results showed that in the year the project operated,water quality in the intake and outlet was good and met Class I or Class II seawater quality standards.No eutrophication was observed.The water quality was generally good in adjacent sea areas.Most indicators met Class I or Class II seawater quality standards.Slight eutrophication occurred in few stations due to industrial pollutant transport by monsoon and land-source nutrients discharge.This study found that the water quality of the sea area near the nuclear power project in Hainan was generally good,and the project has little influence on water quality.