Air pollution data from a nationwide monitoring campaign in China linked smaller-sized particles (PM1) with an increased risk of cardiovascular disease
Finer particulate matter (PM1) could increase cardiovascular disease risk
In addition to harmful gases such as carbon monoxide, air pollution contains tiny particles that have been linked to health problems, including cardiovascular disease and asthma. Most studies have analyzed the potential health effects of larger-sized particulate matter (PM), such as particles less than 2.5 μm in diameter (PM2.5). Now, researchers report in Environmental Science & Technology Letters that particles with diameters less than 1 μm (PM1) are even more strongly correlated with cardiovascular disease.