安徽农业科学2017，Vol.45Issue(21)：44-48,5.
小溪港·望虞河对贡湖湾水质及微囊藻毒素-LR的影响
Effects of Xiaoxi Port and Wangyu River on Water Quality and Microcystin-LR in Gonghu Bay
摘要
Abstract
[Objective]To investigate the influence of inflow channel of Gonghu Bay on water quality and MC-LR.[Method] Water parameters such as CODMn,TN,TP,NH+4-N,DO and MC-LR as well as their spatial and temporal distribution were analyzed in Gonghu Bay and its inflow rivers (Xiaoxi Port and Wangyu River),from June 2014 to May 2015.The carcinogenic evaluation from MC-LR was further estimated with US EPA health risk assessment (four-step method).The correlation between MC-LR and typical environmental factors was evaluated with SPSS.[Result] TN and TP were the major pollutants in the study area.The nitrogen and phosphorus contents in the Xiaoxi Port and Wangyu River were higher than those in Gonghu Bay.The average concentrations of MC-LR in the Gonghu Bay,Wangyu River and Xiaoxi Port were 0.47,0.46 and 0.38 μg/L respectively,indicating that inflow rivers contributed some pollutants to Gonghu Bay.The health risk value of MC-LR HIcgwwas 0.11-0.38,which was much lower than the reference value.There was a significant positive correlation between MC-LR and TP (P <0.05) (R2 =0.628),and a positive correlation between MC-LR and TN without significance.TP may be the main factor affecting MC-LR generation.[Conclusion]Nitrogen and phosphorus were the major pollutant factors in Gonghu Bay.The existence of MC-LR in water exhibited certain health risk in Gonghu Bay.Nutrient concentration of the study area need to be controlled to lower the health risks of MC-LR in the future.关键词
贡湖湾/微囊藻毒素-LR/相关性分析/健康风险评价Key words
Gonghu Bay/MC-LR/Correlation analysis/Health risk assessment分类
资源环境引用本文复制引用
汪锋,钱庄,张雅晶,张周..小溪港·望虞河对贡湖湾水质及微囊藻毒素-LR的影响[J].安徽农业科学,2017,45(21):44-48,5.基金项目
国家"十二五"水专项课题(2013ZX07101-014 （）
2012ZX07 101-006). （）
