USA TODAY's Blake Morrison and Brad Heath have published a package of stories using government data to examine the air quality of American schools located near industrial plants. They found that thousands of schoolchildren are exposed to dangerous levels of carcinogens, metals and other chemicals. The Environmental Protection Agency has never run these models and keeps no records on the air quality around schools. Morrison and Heath have also created a search engine so readers may look up the levels at local schools. The entire package can be seen here.