Car seats have to meet high government standards for functional safety, but are they healthy? The non-profit Ecology Center at HealthyStufff.org tested over 150-2011 model car seats and found that 60% contained bromine, lead, chlorine and other chemicals with "known toxicity, persistence, and tendency to build up in people and the environment." Believe it or not, this is an improvement over the 64% found three years ago. Here is their list of the ten that fared best and worst in their testing. You can learn more about the study on their website, HealthyStuff.org.