Hmm… diminishing returns and all that. At what point do the costs of ever-tightening standards do more harm than good?
Establishing a more stringent ozone standard in the U.S. would significantly reduce ozone-related premature mortality and morbidity, according to a new study published online July 18 in the journal Environmental Health Perspectives.
“Abundant evidence links exposure to ozone with adverse health effects, including impaired pulmonary function, asthma exacerbations, increased hospital and emergency room visits, and increased mortality, yet the current National Ambient Air Quality Standard of 75ppb is often exceeded,” said lead author Jesse Berman, a PhD candidate at Johns Hopkins Bloomberg School of Public Health. “Our study shows that adhering to the current standard would result in a significant reduction in morbidity and mortality and, furthermore, that applying even more stringent ozone standards would result in even greater reductions.”
The research was supported in part by an American Thoracic Society research contract to Mr. Berman.