Air pollution warning issued for parts of New England (WBZ News Radio Boston) A return of hot, muggy weather is expected to drive up smog levels over the next couple of days. The U.S. Environmental Protection Agency is predicting unhealthy air quality in much of New England on Tuesday, including coastal Maine, southern New Hampshire and all of Massachusetts except the southeastern part of the state. [News Source]

Mon Valley to get separate air pollution forecast (Pittsburgh Tribune-Review) The Pennsylvania Department of Environmental Protection announced today that it will add another region to its air quality forecast starting next week. [News Source]

Studies on athletes show health risks from smog. In a 2004 study published in Medicine & Science in Sports & Exercise, elite female hockey players who were exposed to pollutants emitted by an ice-resurfacing machine were shown to have small airway dysfunction. [News Source]

Outdoor buffs must exercise caution on smoggy days. Poor air quality can trip up even the healthiest person. Pay attention to daily reports and your body's reactions. [News Source]

With ozone alert, Dane County acts. Mobilization in Dane County contrasts with Milwaukee County’s inertia, where air pollution is worse. [News Source]

Another pollution vent added at Vestal site. Work to safeguard against TCE pollution at a Vestal plaza will continue this summer as workers add a second system to pull vapors from under the foundation. [News Source]

Beijing’s battle for blue skies. China's capital has spent 140 billion yuan ($20.34 billion) to combat chronic pollution and create a clean, green Beijing ahead of the August 8-24 Olympics. [News Source]

With gas over $4, cities explore whether it’s smart to be dense. In view of ever rising gas prices and greenhouse gas levels, Sacramento is one of the many cities with a plan to grow up, not out. [News Source]

Cities near Beijing close factories to improve air for Olympics. With Beijing struggling to clear polluted skies before the Olympics, the port of Tianjin has ordered 40 factories to suspend some operations to improve air quality during the Games, state news media reported. [News Source]

Johns Hopkins studies air pollution in Valley : Local News (YourWestValley.com) The air pollution in Maricopa County apparently is bad enough to draw the attention of a prestigious medical school. [News Source]

Santa Barbara Air Advisory Downgraded To Precautionary (KEYT 3 Santa Barbara) The Santa Barbara County Public Health Department and the Santa Barbara County Air Pollution Control District today changed the Air Quality Advisory for Santa Barbara County to a precautionary advisory. [News Source]