 WHDH-TV |
Toughen ozone standards
The Register-Guard … to tighten the national standard for ozone, the primary ingredient in smog and a pollutant that sends tens of thousands of Americans, many of them children and senior citizens, to emergency rooms each year for asthma and other bronchial conditions. … Smog alert issued for southern New England EPA warns of unhealthy air quality in NH, ME Editorial: Ozone change could cost us |
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