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Air samples were collected from six locations during the periods of February, 2011–March, 2012 in Beijing city. PBDD/Fs were analyzed using HRGC–HRMS. The concentrations, congener profiles, spatial distribution, seasonal variation, and inhalation risk assessment were investigated. The mass concentrations of 2,3,7,8-substituted PBDD/Fs is 818–5748 fg m −3 with an average of 2490 fg m ...
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