A German environmental group has highlighted an “alarming” study suggesting that one in five lorries have defective or tampered with emissions reduction systems.
The study, presented by Deutsche Umwelthilfe, found that of 140 Euro V and VI class lorries tested covertly while on the road, 20% breached the required standards for NOx emissions, leading to fears of foul play.
“If every fifth lorry tested doesn’t meet emissions standards, that is evidence that the emissions control system is defective or manipulated,” said Axel Friedrich, head of the DUH’s emissions unit.
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