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首页> 外文期刊>Environmental Science & Technology >Indoor Levels of Polycyclic Aromatic Hydrocarbons in Homes with or without Wood Burning for Heating
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Indoor Levels of Polycyclic Aromatic Hydrocarbons in Homes with or without Wood Burning for Heating

机译：有或没有木材燃烧供暖的房屋中室内多环芳烃的水平

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摘要

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 forthe 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/m~3, which was also exceeded outdoors on all days (median 0.37 ng/m~3).
机译：这项研究的目的是调查家用木材燃烧对室内多环芳烃（PAHs）水平的影响。在冬季，在有（n = 13）或没有（n = 10）木材燃烧器具的家庭中以及在瑞典居民区的环境场所（室内常有木材燃烧用于空间取暖）中，测量了室内和室外27种PAHs的浓度。室内二十四小时的蒽，苯并（ghi）荧蒽，环戊（cd）,、苯（a）蒽，/三苯撑，苯并（a）（（BaP），茚并（1,2,3-cd）与没有燃木器具的房屋相比，、苯并（ghi）per和co的显着提高（约3至5倍）。除了甲基化菲以外，所有PAH的室外PAH含量通常都高于室内水平。与参考房屋相比，在燃木房屋中，PAH的总癌症效力（BaP当量之和）显着更高（约4倍），其中BaP是最大的贡献者，而菲在该房屋中对PAH总浓度的贡献最大。室内和室外空气。燃木房屋的室内BaP中位数（0.52 ng / m〜3）是瑞典基于健康的准则（0.1 ng / m〜3）的5倍，全天也超过室外（平均0.37 ng / m〜3）。

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