DutchNews, September 27, 2015
A 2013 report by Dutch research institute
TNO showed that diesel car systems in the Netherlands were adapted to appear as
if the vehicles were less polluting than they actually were, current affairs
programme Nieuwsuur said on Sunday.
The report, which did not name the
manufacturers involved, said the nitrogen oxide emissions from ‘a number’ of
diesel cars which officially met Euro 6 emission standards were higher than
would have been expected in practical situations.
The reports said that systems
had been installed so that ‘they operated during functional driving conditions
in a test but in real-world situations were (partly) switches off for economic
reasons’, Nieuwsuur reported.
The TNO research was carried out on behalf the
transport ministry. A ministry spokesman told Nieuwsuur that the ministry was
not aware of the deliberate manipulation of the emissions data. In addition,
the ministry had not read into the report the claim that the systems had been
adapted or switched off, the spokesman said.
Real world
In a 2015
English-language summary of four reports into diesel car emissions, TNO stated:
‘almost all Euro 6 vehicles that were measured emitted significantly more NOx
in real-world conditions on the road than during a type-approval test in the
laboratory.’
The report continued: ‘It is striking that in real-world
conditions the NOx emissions are more than eight times higher than the
type-approval value.’ TNO is campaigning to have real-world conditions
incorporated into official emissions tests, which are currently lab based.
Two
German newspapers said on Sunday Volkswagen’s own staff and one of its
suppliers warned years ago about software designed to thwart emissions tests.
Last week, Volkswagen acknowledged installing software in diesel engines
designed to hide their true emissions of toxic gasses.
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