污染程度

无污染

(Pjp ≤ 1)

轻微污染

(1 < Pjp ≤ 29)

轻度污染

(2 < Pjp ≤ 3)

中度污染

(3 < Pjp ≤ 5)

重度污染

(Pjp > 5)

Cu (样品数,百分比%)

(0,0)

(0,0)

(1,6.667)

(7,46.667)

(7,46.667)

Zn (样品数,百分比%)

(0,0)

(1,6.667)

(4,26.667)

(4,26.667)

(6,40)

Ni (样品数,百分比%)

(15,100)

(0,0)

(0,0)

(0,0)

(0,0)

Cd (样品数,百分比%)

(0,0)

(0,0)

(0,0)

(0,0)

(15,100)