Question

Water contaminated with 5,000 ppb of lead is classified as HAZARDOUS WASTE!!! However, the EPA Reports that the water was showing lead levels as high as __________ ppb.

Answer 1

The EPA reports lead levels in water as high as 15 ppb.

Step-by-step explanation:

The EPA reports that the water was showing lead levels as high as 15 parts per billion (ppb). Water contaminated with 5,000 ppb of lead is considered hazardous waste. The units ppb and ppm are used to express concentrations of contaminants in water. 1 ppm is equivalent to 1000 ppb. So, 15 ppb is equal to 0.015 ppm.