| (Natural News) A recent study published in Environmental Science & Technology revealed that concentrations of airborne polychlorinated biphenyls (PCBs) may persist in schools and may cause some students to breathe in the chemicals, which in turn may expose them to higher levels than when they inadvertently consume the chemicals through food. PCBs are toxic synthetic compounds that were banned... |
from NaturalNews.com http://ift.tt/2smPqGa
No comments:
Post a Comment