Why is PPM a useful measurement?

1 Answer
Aug 13, 2015

Answer:

It's often used to measure contaminants, but there's other applications.

Explanation:

When you read about an article about air pollution or water pollution, you'll often see it refer to the concentration of contamination in ppm.

here's a NASA article talking about the concentration of CO2 in the atmosphere reaching 400ppm.

You can also get a water quality tester to see the concentration of foreign particles in the water.