2 If the concentration of the herbicide atrazine commonly

Last updated: 7/4/2023

2 If the concentration of the herbicide atrazine commonly used in corn production in a water sample is 0 140 mg L how many parts per billion by volume are present 3 The current EPA maximum contaminant level of herbicide atrazine is 3 0 ppb by mass What is the maximum mass of atrazine allowed by the EPA per 1 0 kg of drinking water 4 The regulatory limit set by the EPA for the lead contaminant level is 15 parts per billion by mass What is the maximum mass in grams of lead in 2 0 gallon of drinking water that still satisfies the EPA regulatory limit The density of drinking water is 0 997 g mL