In the upper atmosphere, ozone gas helps shield us from damaging ultraviolet rays, but near ground level ozone is an irritant that can worsen asthma and decrease lung function. While most indoor ozone ...

Some popular ionizing air cleaners could be hazardous to your health, especially if you have asthma or allergies, says a product testing group. An investigation by Consumers Union (CU) -- the products ...

Exposure to moderate-to-high doses of ionizing radiation have been associated with several acute leukemias. In the current analysis, the relative risk for any leukemia rose from 1.29 to 1.82 at ...