Till hopes that in the longer term, her research will guide provincial legislators in setting safe exposure levels for pregnant women. (sciencemag.org)
Citing the study by the researchers in Tokyo, the European Food Safety Authority issued an advisory in 2004 that the presumed safe exposure level for propyl paraben in food was no longer valid because it affected sex hormones and the male reproductive organs in young rats (EFSA 2004). (ewg.org)
Radium can come up with the wastewater from some wells, it's the precursor of radioactive radon gas and there are no safe exposure levels for either. (wrvo.org)