Supplement to the 2019 Integrated Science Assessment for Particulate Matter (External Review Draft, 2021)
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In June 2021, the U.S. EPA announced it will reconsider the December 2020 decision to retain the particulate matter (PM) National Ambient Air Quality Standards (NAAQS). As part of the reconsideration process, the U.S. EPA indicated that it would develop a supplement to the 2019 Integrated Science Assessment for PM (PM ISA) to thoroughly evaluate the most up-to-date science that became available after the literature cutoff date of the 2019 PM ISA that could either further inform the adequacy of the current PM NAAQS or address key scientific topics that have evolved since the 2020 PM NAAQS review was completed.
This draft Supplement builds on the 2019 PM ISA and represents EPA’s targeted evaluation of the latest scientific literature on the potential health and welfare effects associated with PM. The draft Supplement and 2019 PM ISA collectively forms the scientific basis of the reconsideration of the PM NAAQS.
|Sep 2021||EPA released the draft supplemental report and announced this in the Federal Register. [Federal Register Notice Sep 30, 2021]|
For technical information, contact Mr. Jason Sacks, CPHEA; phone: 919-541-9729; fax: 919-541-1818; or email: firstname.lastname@example.org.
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Comments on the assessment may be submitted and reviewed using the Docket ID EPA-HQ-ORD-2014-0859