Tags

unhealthy for sensitive groups — 1 pages

Reference The US AQI Is Not a Concentration: 100 Generally Corresponds to the Short-Term Standard, and the Daily Ozone AQI Runs on an 8-Hour Clock The US AQI covers five pollutants in six colour categories. An AQI of 100 generally corresponds to the short-term national standard. Daily ozone AQI is 8-hour, particles 24-hour; NowCast differs. Science · Oct 6