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首页> 外文期刊>Environmental Science & Technology: ES&T >Full-Scale Chamber Investigation and Simulation of Air Freshener Emissions in the Presence of Ozone
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Full-Scale Chamber Investigation and Simulation of Air Freshener Emissions in the Presence of Ozone

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摘要

Volatile organic compound (VOC)emissions from one electrical plug-in type of pine-scented air freshener and their reactions with Os were investigated in the U.S.Environmental Protection Agency indoor air research large chamber facility.Ozone was generated from a device marketed as an ozone generator air cleaner.Ozone and oxides of nitrogen concentrations and chamber conditions such as temperature,relative humidity,pressure,and air exchange rate were controlled and/or monitored.VOC emissions and some of the reaction products were identified and quantified.Source emission models were developed to predict the time/concentration profiles of the major VOCs (limonene,alpha-pinene,beta-pinene,3-carene,camphene,benzyl propionate,benzyl alcohol,bornyl acetate,isobornyl acetate,and benzaldehyde)emitted by the airfreshener.Gas-phase reactions of VOCs from the air freshener with O_3 were simulated by a photochemical kinetics simulation system using VOC reaction mechanisms and rate constants adopted from the literature.The concentration-time predictions were in good agreement with the data for O_3 and VOCs emitted from the air freshener and with some of the primary reaction products.Systematic differences between the predictions and the experimental results were found for some species.Poor understanding of secondary reactions and heterogeneous chemistry in the chamber is the likely cause of these differences.The method has the potential to provide data to predict the impact of O_3/VOC interactions on indoor air quality.

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  • 来源
    《Environmental Science & Technology: ES&T》 |2004年第10期|2802-2812|共11页
  • 作者

    Xiaoyu Liu; Mark Mason; Kenneth KrebsLeslie Sparks;

  • 作者单位

    ARCADIS,P.O.Box 13109,Research Triangle Park,North Carolina 27713,and National Risk Management Research Laboratory,Office of Research and Development,United States Environmental Protection Agency,Research Triangle Park,North Carolina 27711;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 英语
  • 中图分类 环境化学;
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