Re-evaluating effectiveness of vehicle emission control programmes targeting high-emitters

Yuhan Huang (), Nic C. Surawski, Yat-Shing Yam, Casey K. C. Lee, John L. Zhou (), Bruce Organ and Edward F. C. Chan
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Yuhan Huang: University of Technology Sydney
Nic C. Surawski: University of Technology Sydney
Yat-Shing Yam: Hong Kong Special Administrative Region Government
Casey K. C. Lee: Hong Kong Special Administrative Region Government
John L. Zhou: University of Technology Sydney
Bruce Organ: University of Technology Sydney
Edward F. C. Chan: University of Technology Sydney

Nature Sustainability, 2020, vol. 3, issue 11, 904-907

Abstract: Abstract Estimating emission distribution within a vehicle fleet is critical for air pollution control. Previous studies reported that more than half of total fleet emissions were produced by only the highest 10% emitters, making repairing or deregistering a small percentage of high-emitters the most cost-effective measure to control vehicle emissions. With diesel emissions data from chassis dynamometer testing and on-road remote sensing, we show that such a strategy may be oversimplified.

Date: 2020
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DOI: 10.1038/s41893-020-0573-y

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