Saturday, November 07, 2015

‘Zero correlation’ ‘between ambient PM2.5 levels and mortality’

ABSTRACT: Although the Environmental Protection Agency’s (EPA) longstanding claim that fine airborne particulate matter measuring 2.5 micrograms or less (PM2.5) is killing thousands of Americans every year, according to the first comprehensive study of its kind entitled “Airborne Fine Particulate Matter and Short-Term Mortality,” (, December 2013), “No correlation is reported between changes in ambient PM2.5 levels and mortality on a daily basis in California, 2007‐2010. Executive Summary The U.S. Environmental Protection Agency regulates ambient airborne fine particulate matter (PM2.5) on the basis that it is causally associated with short-­‐term mortality-i.e., daily increases in PM2.5 cause increases in daily deaths. This is the first epidemiologic study to test that hypothesis on a systematic basis, i.e., using all the relevant and available data from a large contiguous geographic area. Based on a comparison of air quality data from the California Air Resources Board and death certificate data for 854,109 deaths from the California Department of Public Health for the years 2007-­2010, no correlation was identified between changes in ambient PM2.5 and daily deaths, including when the analysis was limited to the deaths among the elderly, heart and/or lung deaths only, and heart and/or lung deaths among the elderly. REFERENCES, including other studies, are featured.

A Closer Look at California’s Diesel Rules
The unholy alliance between the EPA and the CARB tramples states’ rights.
Nov. 6, 2015
James E. Enstrom, Ph.D., M.P.H.
Retired epidemiologist and physicist, UCLA Fielding School  of Public Health
Los Angeles

James Enstrom, ICCC10 (Panel 8: Human Health and Welfare)
“EPA’s Clean Power Plan and PM2.5-related Co-benefits“
James E. Enstrom, Ph.D., M.P.H., is retired research professor and researcher at the UCLA School of Public Health and the president of the Scientific Integrity Institute

James E. Enstrom, Ph.D., M.P.H.

Air Pollution and Total Mortality In California
James E. Enstrom, Ph.D., M.P.H.
Epidemiologist UCLA School of Public Health
President Scientific Integrity Institute
Los Angeles, CA
CSUSB Sustainable Goods Movement Symposium
Palm Desert, CA
November 21, 2013

Reader Rebuttal (James Enstrom): Air pollution in L.A. region
June 5, 2012

Study: ‘No Statistical Correlation’ Between Fine Airborne Particles, Premature Death
By Barbara Hollingsworth | January 7, 2014 | 4:51 PM EST  (

Cox Associates
Address correspondence to Tony Cox, moc.loa@revnedxoct
Copyright © 2013 University of Massachusetts

The EPA's Science Problem
Startling revelations about the agency's misrepresentation of data.
April 14, 2014
Arnold Ahlert  FRONTPAGE MAG

Airborne Fine Particulate Matter and Short -­‐ Term Mortality : Exploring the California Experience, 2007-­2010
December 2013

Assessing Geographic Heterogeneity and Variable Importance in an Air Pollution Data Set
S. Stanley Young∗ and Jessie Q. Xia
National Institute of Statistical Sciences, RTP, NC 27709, USA
Received 30 April 2013; revised 4 July 2013; accepted 8 July 2013
Published online in Wiley Online Library (

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