Combustion particles emitted during church services: Implications for human respiratory health

Hsiao Chi Chuang, Tim Jones, Kelly BéruBé

研究成果: 雜誌貢獻文章同行評審

34 引文 斯高帕斯(Scopus)

摘要

Burning candles and incense generate particulate matter (PM) that produces poor indoor air quality and may cause human pulmonary problems. This study physically characterised combustion particles collected in a church during services. In addition, the emissions from five types of candles and two types of incense were investigated using a combustion chamber. The plasmid scission assay was used to determine the oxidative capacities of these church particles. The corresponding risk factor (CRf) was derived from the emission factor (Ef) and the oxidative DNA damage, and used to evaluate the relative respiratory exposure risks. Real-time PM measurements in the church during candle-incense burning services showed that the levels (91.6μg/m 3 for PM 10; 38.9μg/m 3 for PM 2.5) exceeded the European Union (EU) air quality guidelines. The combustion chamber testing, using the same environmental conditions, showed that the incense Ef for both PM 10 (490.6-587.9mg/g) and PM 2.5 (290.1-417.2mg/g) exceeded that of candles; particularly the PM 2.5 emissions. These CRf results suggested that the exposure to significant amounts of incense PM could result in a higher risk of oxidative DNA adducts (27.4-32.8 times) than tobacco PM. The generation and subsequent inhalation of PM during church activities may therefore pose significant risks in terms of respiratory health effects.

原文英語
頁(從 - 到)137-142
頁數6
期刊Environment International
40
發行號1
DOIs
出版狀態已發佈 - 四月 2012
對外發佈Yes

ASJC Scopus subject areas

  • Environmental Science(all)

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