First Name | Richard |
---|---|
Last Name | Corsi |
Email Address | corsi@mail.utexas.edu |
Affiliation | The University of Texas at Austin |
Subject | iacd07: Ozone Emissions from Indoor Air Cleaning Devices |
Comment | To Whom It May Concern: I whole-heartedly support adoption of the proposed regulation to reduce ozone emissions from devices that are intended to improve indoor air quality. It is a fair first step toward control of an indoor source that I personally believe has several major drawbacks, including (1) significant population exposure to ozone, (2) increased population exposure to ultra-fine particulate matter, (3) increased population exposure to formaldehyde, acetaldehyde, and other irritating to toxic carbonyls, and general ineffectiveness at improving indoor environmental quality. I hope that the regulation is taken as a first step. The 50 ppb "standard" has absolutely no scientific basis, and it is a shame that regulators have fixed on such a number. I recently developed a formal report on what I believe to be a sound rationale for selection of a maximum acceptable indoor ozone concentration increment of 5 ppb, with additional constraints imposed on ozone emissions due to building occupant exposures to secondary organic aerosols and formaldehyde. That report is attached. I hope that it is read and considered as part of the discussion regarding adoption of the proposed regulation and, hopefully, more stringent future regulations. With Sincerity - Richard L. Corsi, Ph.D. ECH Bantel Professor for Professional Practice Director, Program on Indoor Environmental Science and Engineering The University of Texas at Austin (but a Californian by birth and in spirit). |
Attachment | www.arb.ca.gov/lists/iacd07/11-o3_report_public_11_21_06_.doc |
Original File Name | O3_REPORT_PUBLIC_11_21_06_.doc |
Date and Time Comment Was Submitted | 2007-09-23 19:08:27 |
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