The colors correspond to the scale discussed above. Rare areas of blue over land represent the most pollution-free air — under 2 micrograms per cubic meter of PM2.5. Click and drag the map to find ...

Air pollution can damage the heart, warns a new study. Researchers have discovered that long-term exposure to air pollution is associated with early signs of heart damage. Their findings indicate ...

As metropolises develop, air pollution has become a serious problem, especially in developing countries like China. Many governments and researchers have devoted themselves to tackling and solving ...

According to the American Lung Association, air pollution levels can increase significantly—by as much as 42%—on the Fourth of July due to smoke produced by fireworks.