Item

Limit

(mg/L)

Langwoqu mine

Shenyuan mine

Test value (mg/L)

Result

Test value (mg/L)

Result

Hg

0.001

<0.001

Normal

<0.001

Normal

As

0.05

<0.02

Normal

<0.02

Normal

Cr6+

0.05

0.02

Normal

0.03

Normal

Volatile phenol

0.002

0.003

Above standard

0.003

Above standard

Cyanide

0.05

<0.002

Normal

<0.002

Normal