Plus Arsenic victims 'never know what hit them' and Arsenic fears rise over treated wood disposal . Endocrinology groups raise doubt on earlier onset of girls' puberty . Mercury levels high in some U.S. women . Flame retardant found in Great Lakes salmon . 27 Feb 01.
Doubters fault theory finding earlier puberty .
Early signs of puberty evident . Plastics possible culprits in early puberty . Common chemicals cited in early puberty . Ever-younger puberty puzzles researchers . Early onset of puberty worries some experts.