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Gaseous phosphine (PH3) in the inshore atmosphere was observed from October 2005 to August 2006 at a coastal site of the Yellow Sea in China. The concentration of PH3 ranged from 0.01 to 14.86 ng m−3 with an average of 1.14 ng m−3. The concentration showed a diurnal variation in PH3 with the peak occurring at morning and the lowest point at noon. An obvious seasonal variation of atmospheric PH3 was...
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