?url_ver=Z39.88-2004&rft_id=doi%3A10.1016%2Fj.scitotenv.2012.02.018&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=McKenzie%2C+Lisa+M.&rft.aulast=McKenzie&rft.aufirst=Lisa+M.&rft.volume=424&rft.date=May+2012&rft.issn=0048-9697&rft.atitle=Human+health+risk+assessment+of+air+emissions+from+development+of+unconventional+natural+gas+resources&rft.title=Science+of+The+Total+Environment&rft.pages=79-87&rft.genre=article