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

23 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

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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.",

author = "Yutong Liang and Qiaozhi Zha and Weihao Wang and Long Cui and Lui, {Ka Hei} and Ho, {Kin Fai} and Zhe Wang and Shuncheng Lee and Tao Wang",

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Revisiting nitrous acid (HONO) emission from on-road vehicles: A tunnel study with a mixed fleet. / Liang, Yutong; Zha, Qiaozhi; Wang, Weihao; Cui, Long; Lui, Ka Hei; Ho, Kin Fai; Wang, Zhe; Lee, Shuncheng ; Wang, Tao.

In: Journal of the Air and Waste Management Association, Vol. 67, No. 7, 03.07.2017, p. 797-805.

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

TY - JOUR

T1 - Revisiting nitrous acid (HONO) emission from on-road vehicles: A tunnel study with a mixed fleet

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

N2 - 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.

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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DO - 10.1080/10962247.2017.1293573

M3 - Journal article

C2 - 28278037

VL - 67

SP - 797

EP - 805

JO - Journal of the Air and Waste Management Association

JF - Journal of the Air and Waste Management Association

SN - 1073-161X

IS - 7

ER -

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

Abstract

ASJC Scopus subject areas

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