?url_ver=Z39.88-2004&rft_id=10.1073%2Fpnas.1604537113&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Liu%2C+J.&rft.aulast=Liu&rft.aufirst=J.&rft.issue=28&rft.volume=113&rft.date=2016&rft.issn=0027-8424&rft.atitle=Air+pollutant+emissions+from+Chinese+households%3A+A+major+and+underappreciated+ambient+pollution+source&rft.title=Proceedings+of+the+National+Academy+of+Sciences&rft.pages=7756-7761&rft.genre=article