We're inhaling gender-bending chemicals in our homes.

Chemicals that mimic the female hormone estrogen and block male hormones were found indoors in high concentrations in two communities in northern California, one urban and one rural, according to a study published in the journal Environmental Science and Technology. Researchers from the Silent Spring Institute teamed up with university scientists to measure indoor and outdoor air quality in the industrial city of Richmond, as well as the rural community of Bolinas. The data showed that indoor air pollution was similarly high in both communities, but that many of the outdoor pollutants found in Richmond were also found inside.