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Regulation & law · 26/09/1996Updated: 10/18/2026 · 1 min read

EPA Announces Puget Sound Attainment of Ozone NAAQS

Summary

The Environmental Protection Agency (EPA) has determined that the Puget Sound region in Washington state has met the public health-based National Ambient Air Quality Standard (NAAQS) for ozone, based on three years of air quality monitoring data from 1991 to 1993.

Original source language: Federal Register — All DocumentsOpen original release →

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