It can be concluded from the evaluation numbers that the safety of Ming river is difference,iron and hydrargyrum are the main pollutants;the safety of Tuo river and Fu river are better.

• 结果显示,岷江流域的水质安全性较差,主要的污染物为重金属汞和铁,沱江和涪江流域的水质安全性较好。