摘要
依据2016年4、7月和9月在广西北海市铁山港附近海域进行的海洋环境综合调查结果,应用单因子法、有机污染指数法和富营养化指数法对该海域海水的质量状况进行了评价分析,应用综合污染指数法分析讨论了该海域表层海水中5种重金属的含量及污染评价,以及采用Hakanson潜在生态风险指数法对其表层沉积物重金属的污染特征及潜在生态风险性进行评价。结果表明:铁山港区域用海大部分海域水质符合一类海水水质标准,但靠近港口和工业开发区域用海的海域开始受到污染且范围逐渐扩大。海水表层重金属综合污染程度低,总体属清洁水平。表层沉积物中重金属的潜在风险程度轻,属于低潜在生态风险的范畴。
Based on the data obtained in the coastal waters of the Guangxi Beihai Tieshan port coastal area in April, July and September in 2016.Single factor method,index of organic pollution method and eutrophication level method were used to analyze and evaluate the water quality of coastal water.The distribution characteristics and pollution assessment of 5 heavy metals in surface sea water were analyzed by using the comprehensive pollution index method. The pollution and ecological risk assessment of heavy metals in the surface sediments was investigated by applying the Hakanson potential ecological risk index. The results show that: TieShanGang area with most of sea water quality conforms to the class of sea water quality standard, but close to the port and industrial development area with the pollution of the waters of the sea began and scope expanding gradually. Low degree of comprehensive pollution of heavy metals in the surface, the overall level of cleanness. The level of potential risk of heavy metals in surface sediments is light, belongs to the category of potential ecological risk is low.
出处
《科技通报》
2018年第11期242-250,共9页
Bulletin of Science and Technology
关键词
广西铁山港
水质状况
重金属
海洋环境质量
Guangxi Tieshan port coastal
water quality
heavy metal
marine environment quality
