Contribution of Evaporative Emission in Total Emitted VOCs from Gasoline Passenger Vehicles

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  • ガソリン乗用車からのVOC 総排出量に占める蒸発ガスの割合
  • ガソリン ジョウヨウシャ カラ ノ VOC ソウ ハイシュツリョウ ニ シメル ジョウハツ ガス ノ ワリアイ

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Abstract

Tail pipe emissions and evaporative emissions were measured from 4 passenger cars which are conformed most recent exhaust gas emission regulations. The VOC tailpipe emissions from three vehicles were slightly high compared with their certification results. The evaporative emissions were well below from the regulated value. The total amount of VOC emission from cars was estimated from the experimental results and questionnaires for car users about the mean travel distance in a year. As for results, 53 % in the total VOC emissions were emitted by the evaporative emissions. The estimated emissions of the VOC from the gasoline vehicles were almost 3 % in total VOC emission in Japanese society.

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