CASAC Members Urge EPA To Broaden Scope Of Next PM NAAQS Review

摘要

Members of EPA's Clean Air Scientific Advisory Committee (CASAC) particulate matter review panel are urging EPA to consider a wider range of issues and data than proposed so far when it reviews the current national ambient air quality standards (NAAQS) for fine particulate matter (PM2.5) and larger coarse particulate matter (PM10). The panel held a May 23 call to consider EPA's draft Integrated Review Plan (IRP) for the forthcoming NAAQS review. The IRP is a planning document that maps out EPA's review strategy, and can be followed by an optional risk and exposure review, and then a mandatory integrated science assessment (ISA) analyzing the science available since the last review, leading to a policy options outlining potential revisions to the standards.