What is in the air our children are breathing at school? For a lot of schools across the United States, the answer isn’t good. There is a long list of chemicals that can be found in the air at our schools, but not all of them reach a concentration level that is considered to be a toxic hazard. This visual from AAA State of Play breaks down the most common chemical toxic hazard found in schools in each state, as well as the top 10 chemicals that are most commonly found to create a toxic hazard in a majority of schools across the country. Lead compounds, chromium, and nickel are the most common toxic hazards in schools and were found to be a top 5 chemicals in more than thirty states. With this visual you’ll also find a ranking of the top 50 schools in the U.S. that were found to have the highest toxic hazard concentrations overall, as well as the biggest chemical toxic hazard plaguing each of the fifty schools.