Is your child’s car seat toxic? A new study says more than half of children’s car seats sold in the United States contain hazardous chemicals. The environmental group Ecology Center tested more than 150 car seats.

Researchers discovered 60 percent of the seats were made with chemicals like chlorine and lead, which are sometimes used as additives in plastics. The group did not say the levels discovered were high enough to be harmful. There has also been a 64 percent improvement between the 2008 and 2011 models. To see the study’s list of toxic car seats, click the link below:

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