Evolving Air Quality Standards
Legal Planet
NOVEMBER 9, 2023
I am focusing on what are called the primary standards, which are health-based, and on two key pollutants, particulates and ozone, which have the greatest current importance. Ozone Pollution (Smog) Ozone standards are measured in parts per million (ppm) in the air. ppm in 1997,075 ppm in 2008, and 0.07 ppm in 2015.
Let's personalize your content