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JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
Characteristics and personal exposures of carbonyl compounds in the subway stations and in-subway trains of Shanghai, China.
Journal of Hazardous Materials 2010 November 16
Carbonyl compounds including their concentrations, potential sources, diurnal variations and personal exposure were investigated in six subway stations and in-subway trains in Shanghai in June 2008. The carbonyls were collected onto solid sorbent (Tenax TA) coated with pentafluorophenyl hydrazine (PFPH), followed by solvent extraction and gas chromatography (GC)/mass spectrometry (MS) analysis of the PFPH derivatives. The total carbonyl concentrations of in-subway train were about 1.4-2.5 times lower than in-subway stations. A significant correlation (R>0.5, p<0.01) between the concentrations of the low molecular-weight carbonyl compounds (
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