In the U.S., Mercury, which is toxic to brain development, is commonly emitted into the atmosphere.

Do you live near a Mercury Hotspot? I originally saw this map, which is based on a recent report from Environmental America, on Mother Jones. Although Mercury is toxic to us (it negatively affects brain development), it is commonly emitted into the air by industry. In the United States, 2/3 of the emissions are from coal fired power plants alone.

For more on locating pollution in the U.S., check out our other posts:
NPR and the Center for Public Integrity Investigate Poisoned Places of the U.S.
Are Toxic Chemicals Being Released Near You?