Phthalates: Under the Microscope

Many children's toys contain chemicals known as phthalates. These additives are used to make plastics soft and flexible. Animal tests and some human studies have linked phthalates to abnormal reproductive tracts, sperm damage and reduced testosterone.

This interactive expands on issues discussed in KQED's radio series. See how toys are tested for phthalates, learn how and where phthalates are commonly used, and discover what you can do to keep your toy chest phthalate-free.

Reporter: Sarah Varney; Editors: Pat Flynn and Gabriel Coan; Producer: Nick Vidinsky

Related: Chemicals at Home: Searching for Safe Alternatives