Indoor levels of polycyclic aromatic hydrocarbons in homes with or without wood burning for heating
Indoor levels of polycyclic aromatic hydrocarbons in homes with or without wood burning for heating
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DOI：
10.1021/es800304y
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发表时间：
2008-07-15
影响因子：
11.4
通讯作者：
Sallsten, Gerd
中科院分区：
文献类型：
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作者：
Gustafson, Pernilla;Ostman, Conny;Sallsten, Gerd
本研究的目的是调查家庭木材燃烧对室内多环芳烃（PAHs）水平的影响。室内和室外的27多环芳烃的浓度进行了测量，在冬季（n = 13）或（n = 10）木材燃烧的电器和在瑞典住宅区的木材燃烧的空间加热是常见的环境站点的家庭。与没有木材燃烧设备的家庭相比，24小时室内蒽、苯并（ghi）荧蒽、环戊（cd）芘、苯并（a）蒽、苯并（a）芘/苯并菲、苯并（a）芘（BaP）、茚并（1，2，3-cd）芘、苯并（ghi）二萘嵌苯和晕苯的水平显著高（约3- 5倍）。除甲基化菲外，所有多环芳烃的室外水平普遍高于室内水平。燃烧木材的房屋中的总PAH致癌潜力（BaP当量的总和）显著高于参考房屋（约4倍），BaP是最大的贡献者，而菲对室内和室外空气中的总PAH浓度的贡献最大。燃烧木材的房屋中的室内BaP水平中位数（0.52 ng/m3）比瑞典基于健康的指南0.1 ng/m3高出5倍，该指南也在所有日子都超过了室外（中位数0.37 ng/m3）。
The aim of this study was to investigate the impact of domestic wood burning on indoor levels of polycyclic aromatic hydrocarbons (PAHs). Indoor and outdoor concentrations of 27 PAHs were measured during wintertime in homes with (n = 13) or without (n = 10) wood-burning appliances and at an ambient site in a Swedish residential area where wood burning for space heating is common. Twenty-four hour indoor levels of anthracene, benzo(ghi)fluoranthene, cyclopenta(cd)pyrene, benz(a)anthracene, chrysene/triphenylene, benzo(a)pyrene (BaP), indeno(1,2,3-cd)pyrene, benzo(ghi)perylene, and coronene were significantly (about 3- to 5-fold) higher in homes with, compared with homes without, wood-burning appliances. The outdoor levels of PAHs were generally higher than the indoor levels for all PAHs except for the methylated phenanthrenes. The total PAH cancer potency (sum of BaP equivalents) was significantly higher (about 4 times) in the wood-burning homes compared with the reference homes, with BaP being the largest contributor, while phenanthrene made the largest contribution to the total PAH concentration in indoor and outdoor air. The median indoor BaP level in the wood-burning homes (0.52 ng/m(3)) was 5 times higher than the Swedish health-based guideline of 0.1 ng/m3, which was also exceeded outdoors on all days (median 0.37 ng/m(3)).