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首页> 外文期刊>Environmental Science & Technology >Prediction of Initial Emission Rates of 2-Butoxyethanol from Consumer Products Using Equilibrium Headspace Concentrations:An Application of the Vapor Pressure and Boundary Layer(VB)Model
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Prediction of Initial Emission Rates of 2-Butoxyethanol from Consumer Products Using Equilibrium Headspace Concentrations:An Application of the Vapor Pressure and Boundary Layer(VB)Model

机译：平衡顶空浓度预测消费品中2-丁氧基乙醇的初始排放率：蒸气压和边界层（VB）模型的应用

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摘要

The initial emission rate of volatile organic compounds(VOCs)from consumer products is important for assessing potential human exposure to VOCs in products.The vapor pressure and boundary layer(VB)model developed in the past was used to predict the emission rates of VOCs in the fast decaying phase from petroleum-based wet materials.This study has extended the model to largely water-based products.Study results have shown a good agreement(ratio=1.01,r~2=0.89)between model-predicted initial emission rates(ER_0)of 2-butoxyethanol(2-BE)based on its equilibrium headspace concentration and experimentally measured ER_0 in a small dynamic environmental chamber for 20 consumer products.These water-based products included wood surface treating stains,general cleaning agents,and degreasers with 2-BE concentrations over a wide range.The results also demonstrated a dependency between the headspace concentrations of the target analytes and the water content in the liquid.But dependency on water content had no effect on the use of headspace concentration to predict the ER_0.The ERo of 2-BE in the products ranged from 100 to 3000 mg m~(-2)h~(-1).In the majority of cases,the 2-BE concentration range in individual products indicated in the Material Safety Data Sheet agreed with the measured data.
机译：消费品中挥发性有机化合物（VOCs）的初始排放速率对于评估人体潜在暴露于产品中VOC的重要性很重要。该研究已将模型扩展到主要为水基产品。研究结果表明，模型预测的初始排放率（ratio = 1.01，r〜2 = 0.89）有很好的一致性。基于2-丁氧基乙醇（2-BE）的平衡顶空浓度，并在小型动态环境室内对20种消费品进行了实验测得的ER_0。这些水性产品包括木材表面处理污渍，常规清洁剂和脱脂剂。 2-BE的浓度范围很广，结果还表明目标分析物的顶空浓度与液体中的水含量之间存在依赖性，但对水的依赖性对使用顶空浓度预测ER_0没有影响。产品中2-BE的ERo在100至3000 mg m〜（-2）h〜（-1）之间。在大多数情况下，材料安全数据表中指示的单个产品中2-BE的浓度范围与测量数据一致。

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  • 来源
    《Environmental Science & Technology》 |2005年第21期|p.8214-8219|共6页
  • 作者

    JIPING ZHU; HENRIK LI; MARK KORCHINSKI; PHIL FELLIN;

  • 作者单位

    Chemistry Research Division,Health Canada,Tunney's Pasture,Ottawa,Ontario,K1A 012 Canada,AirZOne One,Inc.,222 Matheson Boulevard East,Mississauga,Ontario,L4Z 1X1 Canada,and Management of Toxic Substances Division,Health Canada,Tunney's Pasture,Ottawa;

    Chemistry Research Division,Health Canada,Tunney's Pasture,Ottawa,Ontario,K1A 012 Canada,AirZOne One,Inc.,222 Matheson Boulevard East,Mississauga,Ontario,L4Z 1X1 Canada,and Management of Toxic Substances Division,Health Canada,Tunney's Pasture,Ottawa;

    Chemistry Research Division,Health Canada,Tunney's Pasture,Ottawa,Ontario,K1A 012 Canada,AirZOne One,Inc.,222 Matheson Boulevard East,Mississauga,Ontario,L4Z 1X1 Canada,and Management of Toxic Substances Division,Health Canada,Tunney's Pasture,Ottawa;

    Chemistry Research Division,Health Canada,Tunney's Pasture,Ottawa,Ontario,K1A 012 Canada,AirZOne One,Inc.,222 Matheson Boulevard East,Mississauga,Ontario,L4Z 1X1 Canada,and Management of Toxic Substances Division,Health Canada,Tunney's Pasture,Ottawa;

  • 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 eng
  • 中图分类 环境化学;
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