An Ambient Measurement Technique for Vehicle Emission Quantification and Concentration Source Apportionment
Naomi · 2024
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Description
A car's exhaust plume lasts a second at the roadside, and Naomi Farren and co-authors learn to read it before it disperses, in a 2024 paper. Their technique, plume regression, parks fast instruments by the road and assigns each passing vehicle's puff to that vehicle.
The method yields emissions by vehicle type that match established remote sensing, and it also splits the roadside air itself into contributions by type, information managers lacked. Applied to ammonia and nitrogen oxides, it acquits diesel vehicles, whose ammonia output stays very low even with ammonia-fed cleanup systems. Gasoline cars dominate ammonia emissions instead, and their output climbs with mileage. The authors offer plume regression as a flexible tool deployable at ordinary monitoring sites for many pollutants.
Catalog record
| CREATOR | Naomi |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 41 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |