Revisiting nitrous acid (HONO) emission from on-road vehicles: A tunnel study with a mixed fleet

Yutong Liang; Qiaozhi Zha; Weihao Wang; Long Cui; Ka Hei Lui; Kin Fai Ho; Zhe Wang; Shuncheng Lee; Tao Wang

doi:10.1080/10962247.2017.1293573

Revisiting nitrous acid (HONO) emission from on-road vehicles: A tunnel study with a mixed fleet

Yutong Liang, Qiaozhi Zha, Weihao Wang, Long Cui, Ka Hei Lui, Kin Fai Ho, Zhe Wang, Shuncheng Lee, Tao Wang

Research output: Journal article publication › Journal article › Academic research › peer-review

48 Citations (Scopus)

Abstract

The emission ratio of a modern fleet with a higher percentage of diesel vehicles was measured and the impact of the new emission control technologies on nitrous acid (HONO) were evaluated. The emission ratio measured was approximately 50% higher than the most commonly used 0.8%. Positive correlation between HONO and black carbon (BC) suggests that HONO and BC were emitted together, while the lack of correlation between HONO/NOxand BC, suggests that the BC-mediated conversion of NO2to HONO in the dark was insignificant immediately after emission. Modeling studies handle the BC-mediated HONO formation in the atmospheric chemistry module rather than make correction at the emission source.

Original language	English
Pages (from-to)	797-805
Number of pages	9
Journal	Journal of the Air and Waste Management Association
Volume	67
Issue number	7
DOIs	https://doi.org/10.1080/10962247.2017.1293573
Publication status	Published - 3 Jul 2017

ASJC Scopus subject areas

Waste Management and Disposal
Management, Monitoring, Policy and Law

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10.1080/10962247.2017.1293573

http://hdl.handle.net/10397/70955

Cite this

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title = "Revisiting nitrous acid (HONO) emission from on-road vehicles: A tunnel study with a mixed fleet",

abstract = "The emission ratio of a modern fleet with a higher percentage of diesel vehicles was measured and the impact of the new emission control technologies on nitrous acid (HONO) were evaluated. The emission ratio measured was approximately 50% higher than the most commonly used 0.8%. Positive correlation between HONO and black carbon (BC) suggests that HONO and BC were emitted together, while the lack of correlation between HONO/NOxand BC, suggests that the BC-mediated conversion of NO2to HONO in the dark was insignificant immediately after emission. Modeling studies handle the BC-mediated HONO formation in the atmospheric chemistry module rather than make correction at the emission source.",

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AU - Liang, Yutong

AU - Zha, Qiaozhi

AU - Wang, Weihao

AU - Cui, Long

AU - Lui, Ka Hei

AU - Ho, Kin Fai

AU - Wang, Zhe

AU - Lee, Shuncheng

AU - Wang, Tao

PY - 2017/7/3

Y1 - 2017/7/3

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AB - The emission ratio of a modern fleet with a higher percentage of diesel vehicles was measured and the impact of the new emission control technologies on nitrous acid (HONO) were evaluated. The emission ratio measured was approximately 50% higher than the most commonly used 0.8%. Positive correlation between HONO and black carbon (BC) suggests that HONO and BC were emitted together, while the lack of correlation between HONO/NOxand BC, suggests that the BC-mediated conversion of NO2to HONO in the dark was insignificant immediately after emission. Modeling studies handle the BC-mediated HONO formation in the atmospheric chemistry module rather than make correction at the emission source.

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JO - Journal of the Air and Waste Management Association

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Revisiting nitrous acid (HONO) emission from on-road vehicles: A tunnel study with a mixed fleet

Abstract

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