摘要
根据太湖三大湖湾的水质监测数据,运用因子分析(Factor analysis)方法对该湖湾7种污染物成分进行了统计分析,并讨论了水体中污染物的来源。结果表明:梅梁湾第一污染因子主要是TN、TP和Chla,第二主因子主要代表NH4+-N和高锰酸盐指数,NO3--N对第三主因子贡献明显;贡湖湾第一污染因子为TN、TP、高锰酸盐指数和Chla,第二污染主因子为NH4+-N、NO3--N和SS;而东太湖TN、TP、高锰酸盐指数和SS的贡献最大,其次是NH4+-N和Chla,再次是NO3--N。由各主因子得分的空间分布特征分析污染物来源,为保护、管理水源地提供了科学依据。
According to quality monitoring data in three bays of Lake Taihu,the correlations among 7 pollutants were studied and sources of water pollutants were discussed by using factors analysis.Results showed that the first polluted factor contained TN,TP and Chla,the secondary important pollutants were NH4^＋-N and CODMn while the third was NO3^--N in Meiliang Bay.TN,TP,CODMn and Chla composed the first main factor,while the second consisted of NH4^＋-N,NO3^--N and SS in Gonghu Bay.While in the bay of East Taihu Lake,contributions of TN,TP,CODMn and SS were the biggest, followed by NH4^＋-N and Chla,NO3^--N was the third contributing factor.Based on the spatial distribution of component score,the analysis of pollutant source provided an overall status of water quality and a scientific theory for protecting and managing water resource of the Lake.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2011年第7期1-5,117,共6页
Environmental Science & Technology
基金
国家水体污染控制与治理科技重大专项项目(2008ZX07101-012)
关键词
因子分析
污染物
太湖
factor analysis
pollutant
Lake Taihu
