The percentage of Ammoniac azote, TP, TN, Cd, potassium permanganate index and fluoride which have much effect on water quality is big and the variation tendency is great.

• 氨氮、总磷、总氮、镉、高锰酸盐指数以及氟化物等指标在阅海湿地水质总体评价中所占比重较大，直接影响水道水质；