Modern diesel cars produce more toxic emissions than trucks and buses, according to European researchers. That's because heavy duty vehicles in the EU have much stricter regulations than cars, and so even if they meet lab tests, cars end up producing much more nitrogen oxides (NOx) when driven on actual roads. From a report: The new report, released by the International Council on Clean Transportation (ICCT), shows that trucks and buses tested in Germany and Finland emitted about 210mg NOx per kilometer driven, less than half the 500mg/km produced by diesel cars that meet the highest "Euro 6" emission standards.
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