Distribution of Alkone,Alcohol and Ketone of Indoor Air in Some Apartments in Hangzhou
- VernacularTitle:杭州市部分居室室内空气中烷烃、醇、酮的分布
- Author:
Gang LIU
;
Aixu YU
;
Long WU
- Publication Type:Journal Article
- Keywords:
Air pollution, indoor;
Alkane;
Alcohol;
Ketone;
Volatile organic compounds
- From:
Journal of Environment and Health
1992;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the distribution of alkane, alcohol and ketone in indoor air of some apartments in Hangzhou. Methods 55 air samples were randomly collected from 31 apartments in Hangzhou by Carbotrap 300 air-sampling tube, during October-December, 2002, and April-May, 2003, then the volatile organic compounds in air samples were determined by heat-desorption GC-MS. Results 41 kinds of alkane, 11 kinds of alcohol and 9 kinds of ketone were found in air samples collected from 31 apartments in Hangzhou, average concentration of total alkane was 24.096 7 ?g/m3, average concentration of total alcohol was 3.670 7 ?g/m3, and average concentration of total ketone was 33.492 4 ?g/m3 respectively. The dominant indoor air pollutants were hexane, heptane, octane, nonane, decane, undecane, dimethylbutane, methylhexane, n-butanol, cyclohexanone, propanone, 2-butanone. The concentrations of alkane, alcohol and ketone in indoor air of apartments decreased with the time went on after the house decoration finished on the whole. 10 of 14 alkanes showed positive correlation to the temperature, 6 of them to the relative humidity at the sampling points. 2 of 11 alcohols and 3 of 9 ketones showed positive correlation to the relative humidity at sampling points. Conclusion The increasing temperature is the important factor for the release of alkanes in indoor air. The increasing relative humidity is the influence factor for the release of alcohols, ketones, and some alkanes in indoor air.
