September 2022

This month, EM considers some of the challenges for the U.S. Environmental Protection Agency (EPA) during its review of the secondary standards for oxides of nitrogen and sulfur.

Inside This Month's Issue

Features

Secondary Standards for Oxides of Nitrogen and Sulfur
by Susan S.G. Wierman

Progress Toward Revision of the Secondary Standards for SO2 and NO2
by George M. Hidy

Secondary Standards for NOx and SOx Can Help Protect Natural Resources on Federal Lands
by Michael D. Bell, Emmi Felker-Quinn, Linda H. Pardo, Bret A. Schichtel, John C. Vimont, and Jennifer L. Wilkening

Ambient Total Oxidized Nitrogen Monitoring in New York State
by Kevin L. Civerolo, Oliver V. Rattigan, H. Dirk Felton, and James J. Schwab

The Chesapeake Bay Program
by Karl Blankenship

Also This Month...

PM File: Securities and Exchange Commission Proposes Environmental, Social, and Governance Regulations
by David Elam, Jr.

Message from the President: Connecting with Our Communities
by Nancy E. Meilahn Fowler

In Memoriam: Robert L. Eisenbach, Jr. (1929–2022)

EPA Research Highlights: A Roundup of the Latest U.S. Environmental Protection Agency (EPA) Research

What’s on Tap for 2022?

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