The concentration of the metals Al, As, Cr, Co, Cu, Fe, Pb, Ni, and Zn, expressed as total metal, should not exceed 1 mg/L each, and Cd, Hg, and Ag, expressed as total metal, should not exceed 100 ng/L each.
Different metals have different levels that are allowed within the water.
There are no maximum levels for metals in the water.
A man is playing an instrument outdoors.
The boy is doing his homework.
There will not be a second landing.
Men conversing in an alley.
Children aren't sexy and we do not recognize them as sexual creatures.
A man is very excitable