One part per million (ppm) corresponds to how many pounds of active ingredient per million pounds of water?

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Study for the Utah Aquatic Pesticide Exam. Utilize flashcards and multiple-choice questions with hints and explanations. Prepare thoroughly for your certification!

Multiple Choice

One part per million (ppm) corresponds to how many pounds of active ingredient per million pounds of water?

Explanation:
Parts per million is a mass ratio: 1 part of active ingredient per 1,000,000 parts of water. In pounds, that means 1 pound in 1,000,000 pounds of water gives 1 ppm. So for one million pounds of water, the corresponding amount of active ingredient is 1 pound. (Using 10 pounds would be 10 ppm, 0.1 pounds would be 0.1 ppm, and 100 pounds would be 100 ppm.)

Parts per million is a mass ratio: 1 part of active ingredient per 1,000,000 parts of water. In pounds, that means 1 pound in 1,000,000 pounds of water gives 1 ppm. So for one million pounds of water, the corresponding amount of active ingredient is 1 pound. (Using 10 pounds would be 10 ppm, 0.1 pounds would be 0.1 ppm, and 100 pounds would be 100 ppm.)

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