Denmark's environmental assessment institute (IMV) has calculated that fitting particle filters to diesel engines would yield a "maximum possible gain" of DKr83bn (€11.2bn) over the next 15 years.
Unlike previous cost-benefit analyses that have tended to focus on heavy vehicles (over 3.5 tonnes), vans and taxis were included in this study because of their prevalence in urban areas, IMV said in a statement. The high costs of fitting the filters - DKr40,000 for heavy vehicles and 15,000 for the others - are expected to fall to 12,000 and 8,000 respectively as production increases.
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