When the Campaign for Healthier Solutions tested a variety of products sold at Dollar Tree and other discount retailers, it found that 81 percent tested contained at least one hazardous chemical. Even microwave popcorn and canned foods sold at dollar stores were found to contain deeply concerning levels of harmful chemicals. A number of states have likewise documented high levels of harmful chemicals in Dollar Tree products. Prenatal exposure to some of these chemicals can result in lower IQ levels, as well as learning or behavioral problems. Yet there is actually no need to use many toxic chemicals because there are safe, affordable alternatives.