EPA OKs New Tools for Sniffing Out Air Pollutants
Published Date: 9/5/2025
Notice
Summary
The EPA just approved four new ways to check air pollution levels, including sulfur dioxide, nitrogen dioxide, and tiny particles in the air. This update helps scientists and air quality experts get better, faster readings to keep our air safe. If you work in air monitoring, these new methods are ready to use now and could save time and money.
Analyzed Economic Effects
1 provisions identified: 1 benefits, 0 costs, 0 mixed.
Four new air monitoring methods approved
The EPA designated one new equivalent method for measuring sulfur dioxide (SO2), one new reference method for measuring nitrogen dioxide (NO2), one new equivalent method for measuring PM2.5, and one new equivalent method for measuring PM10-2.5 in ambient air. These methods are ready to use now, and the Agency says they can give better, faster readings and could save time and money for people who work in air monitoring.
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