Euro 6 vehicles may not be all
that they are cracked up to be.
Despite widespread hopes
that Euro 6 vehicle limits will
solve European air quality
problems in city centres (AQB
May P7), tests in Norway have
raised fears that real life
emissions may still...
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Euro 6 vehicles may not be all
that they are cracked up to be.
Despite widespread hopes
that Euro 6 vehicle limits will
solve European air quality
problems in city centres (AQB
May P7), tests in Norway have
raised fears that real life
emissions may still breach
standards.
Norwegian researchers tested
six cars and two trucks. They
say: “Results from these tests
show that the emissions of NOX
from new Euro 6 light vehicles
may be significantly lower than
from corresponding Euro 5 light
vehicles, but that at 23°C in real
life traffic they still may be
about 2-4 times higher than the
Euro 6 approval limits, and
about 5-8 times higher at -7°C
(Nordic winter). Emissions of
unregulated emission
components from Euro 6 cars
and new engine concepts may
be higher and different
compared with what may
traditionally have been
measured from diesel cars.
“The emissions of NOX and
NO2 from heavy duty vehicles
with Euro VI engines may be so
low that these vehicles emit less
of these exhaust components
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