EPAFinal Rule

Reference Measurement Principle and Calibration Procedure for the Measurement of Ozone in the Atmosphere (Chemiluminescence Method); Correction

EnvironmentHealthcare

Summary

The EPA updated its official method for measuring ozone pollution in the air using a chemical detection technique called chemiluminescence. This ensures that air quality monitors across the country use consistent and accurate procedures to measure smog and ozone levels, which helps protect public health by tracking whether the air we breathe is getting cleaner or dirtier.

Key Points

  • 1The EPA clarified the correct way to calibrate and use equipment that measures ozone by detecting a chemical reaction, ensuring all air monitoring stations follow the same accurate procedure
  • 2This is a technical correction to an existing regulation, meaning the EPA fixed guidance that was unclear or needed updates based on scientific improvements
  • 3Accurate ozone measurements help the government and public understand air quality and determine if pollution is improving in their communities
  • 4Air quality agencies and laboratories that monitor ozone pollution must follow these updated calibration procedures to ensure their measurements are reliable and comparable nationwide
  • 5This regulation helps enforce the Clean Air Act by providing a standardized method to measure one of the most common air pollutants that affects respiratory health, especially for children and seniors

Key Dates

Published

January 16, 2025

This summary is for informational purposes only. It may not capture all nuances of the regulation. Always refer to the official text for authoritative information.

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