北京市西城区居民室内空气低分子量羰基化合物污染调查
INVESTIGATION OF LOW MOLECULAR WEIGHT CARBONYL COMPOUNDS IN INDOOR AIR OF RESDENTIAL AREAS IN XICHENG DISTRICT, BEIJING
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摘要: 2009年11月—12月对北京市西城区7个社区210户家庭室内的低分子量羰基化合物进行了采样分析.实验采用2,4-二硝基苯肼(DNPH)涂布的硅胶柱采样,液相色谱分析检测.结果表明,所有家庭都检测到甲醛、乙醛、丙酮和丙烯醛,其质量浓度水平相对较高;室内装修会增加室内羰基化合物的污染;甲醛和乙醛人体暴露水平评估结果表明北京西城区居民对低分子量羰基化合物的暴露风险较高.Abstract: Ambient levels of low molecular weight carbonyl compounds were investigated in seven residential areas in Xicheng district, Beijing, during the period of November-December 2009. Carbonyl compounds were collected using 2,4-dinitrophenylhydrazine (DNPH) modified silica tube and analyzed by HPLC. The results were as follow: formaldehyde, acetaldehyde, acetone and acrolein compounds were detected in all the samples. The mass concentrations of carbonyls were higher than other cites. The influence factors of the carbonyl compound concentrations were discussed in this investigation. The human exposure risk of formaldehyde and acetaldehyde was also discussed. Compared to other areas of China, the exposure risk of low molecular carbonyl compounds in Beijing was higher.
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Key words:
- carbonyl compounds /
- indoor air /
- Beijing /
- Xicheng district /
- exposure risk
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