The cold winter months may bring temporary relief from Colorado’s long-running ozone pollution problem, but it’s crunch time for air quality planners and regulators hoping to finally clear the air ...

While ozone pollution is typically a summer phenomenon in Maricopa County, ozone season stretched well into the fall this year. High ozone levels usually drop off in mid-September, but Maricopa County ...

Northern Utah’s ozone pollution problem is not getting better. Two years after the U.S. Environmental Protection Agency moved the northern Wasatch Front from “marginal” to “moderate” status for ...

Chronically high levels of ozone plague Colorado’s Front Range, which stretches from Fort Collins through the Denver metropolitan area and Colorado Springs. Colorado’s Front Range air quality problem ...

Ozone is a gas that at high altitudes forms the much-needed protective layer we hear so much about in the global warming debates. Closer to ground level, however, ozone is less benevolent. It can be a ...

Ozone readings in five separate locations across the Houston area reached "very unhealthy" concentrations on the same day a month ago, boding poorly for its ozone season that would typically spike in ...

Lutyens’ Delhi is one of the most iconic neighborhoods of India’s capital. Home to the country’s parliament, numerous embassies, and a lush, 90-acre Mughal-era park, it’s an architectural paradise, ...

PINEDALE — Sublette County residents this week expressed frustration and some anger to state health and environmental regulators about the winter ozone problem that plagued the county this winter.

Utah’s ozone problem could lead to higher disability rates in children, according to a recently published study. Ozone’s negative effect on lung function and other health outcomes is well documented, ...

No wonder politicians curse the environment. After intense horse-trading, arm twisting and agonizing, 93 industrialized nations agreed in 1990 to phase out by the year 2000 chemicals that destroy the ...

That describes Forsyth County’s ozone levels, according to a new report on air quality from the American Lung Association. The association gave Forsyth County an F for ozone levels. The county did ...