At least 17 large fires are burning across California, and dozens more throughout other Western states, destroying hundreds of thousands of acres, sending toxic pollutants into the air and contaminating water supplies. The air quality in certain areas — particularly near California's massive Mendocino Complex Fire in the northern part of the state — is among the worst officials have ever seen.

New Englanders can get a heads’ up on smoggy conditions that may affect their health with some free resources being offered by the EPA and their states. The warm weather up ahead brings with it an increased risk of ground-level ozone and fine particle air pollution (when combined, often referred to as smog).

More than 20 million U.S. workers are exposed to substances that can cause airway disease, according to NIOSH. Nearly 30 percent of chronic obstructive pulmonary disease (COPD) and adult asthma cases may be attributable to occupational exposure. Nearly nine million workers are occupationally-exposed to known sensitizers and irritants associated with asthma, according to NIOSH.

"First, EPA proposed to revoke the Clean Power Plan, and now they have signaled their intention to replace the Plan with far weaker standards. The Clean Power Plan would have prevented up to 90,000 childhood asthma attacks and 4,500 premature deaths every year once fully implemented. Instead of implementing these lifesaving standards, EPA is moving toward...

New research presented this week at APHA’s 2017 Annual Meeting and Expo examined the burden of air pollution and its association with mortality in Chinese cities. The study by researchers at Drexel University Dornsife School of Public Health showed a significant correlation between higher air quality index concentrations and higher mortality rates. The study is the first to provide strong evidence of the burden of air pollution in major Chinese cities, as well as the impacts of air quality and climate change on urban population mortality.

New USC research finds that children with asthma are 51 percent more likely to become obese over the next decade compared to kids who did not have respiratory condition. The study, published on Jan. 20 in the American Journal of Respiratory and Critical Care Medicine, also indicated that children who used asthma inhalers when they had an attack were 43 percent less likely to become obese.

The most harmful pollutant to human health is called PM 2.5, particle matter smaller than 2.5 microns in diameter that's found in soot, smoke, and dust. PM 2.5 is especially dangerous because it can get lodged in the lungs and cause long-term health problems like asthma and chronic lung disease.

Nearly half of all adult asthma cases – 48 percent -- might be related to work – and thus, preventable -- according to a study published in the CDC’s MMWR last month. This finding means as many as 2.7 million U.S. workers might have asthma caused by or exacerbated by workplace conditions.

The Air Quality Index for the greater Spokane-area hit unhealthy levels in late August due to wildfires burning across the region.

New research from North Carolina State University connects several pesticides commonly used by farmers with both allergic and non-allergic wheeze, which can be a sensitive marker for early airway problems.