Or really anyone at all? A new study just published in the journal Regulatory Toxicology and Pharmacologydrives a stake through the heart of EPA’s claims.
The study compared daily PM2.5 levels in California with daily death counts during the 13 years between 2000 to 2012. Over those 4,745 days, no association could be found between PM2.5 levels and the over two million deaths included in the analysis. EPA claims that elderly people are most vulnerable to the allegedly lethal effect of PM2.5. But the California study specifically examined this issue and found no association between PM2.5 and deaths among the elderly.
Without a doubt this is the largest and best-conducted epidemiologic study ever on PM2.5. Virtually every death in California was considered and the state is meticulous about its air-quality data. California has the ultimate range in air quality, from the best to the worst in the U.S. In comparison, previous EPA-funded studies have focused only on limited (read “cherry-picked”) urban areas, rely on guesstimated or assumed PM2.5 levels and often include deaths from accidents, homicides and other causes that can’t possibly be related to PM2.5.