U Birmingham study finds DPFs have limited impact on ultrafine particle emissions

Green Car Congress
By mmillikinMar 29, 2023, 9:30 am128 pts
A study by researchers at the University of Birmingham in the UK has found that while Diesel Oxidation Catalysts (DOCs) and Diesel Particle Filters (DPFs) has been very effective in controlling the tailpipe emissions of solid particles, there has been little change in the liquid mode (104 cm−3/24-hour mean)…

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