UK diesel cars fail to meet EU emis­sion norms

Down to Earth - - THE FORTNIGHT -

DIESEL CARS cur­rently fol­low­ing Euro 5 emis­sion norms and tested un­der ur­ban driv­ing con­di­tions in the UK have been found to emit 17 times more ni­tro­gen ox­ide (NOx) as com­pared to their petrol coun­ter­parts. NOx emis­sions were also six times more for cer­ti­fied diesel cars un­der the Euro 6 emis­sion stan­dards. This was re­vealed re­cently in a Lon­don As­sem­bly re­port Driv­ing awayfromdiesel. The re­port as­sumes sig­nif­i­cance as Europe is plan­ning to adopt Euro 6 emis­sion stan­dards by Septem­ber 2015. Nor­mally, diesel cars are al­lowed to emit three times more NOx as com­pared to petrol cars un­der the cur­rent Euro 5 stan­dard. How­ever, in present cir­cum­stances, NOx emis­sions by one diesel car equals to that of 17 petrol cars meet­ing the same norm. The Lon­don As­sem­bly re­port Drivin­g­awayfromdiesel was pre­pared af­ter the Supreme Court or­dered the UK gov­ern­ment in April 2015 to pre­pare a new air qual­ity strat­egy to tackle high lev­els of NOx found in the at­mos­phere. Ac­cord­ing to the UK gov­ern­ment es­ti­mates, diesel ve­hi­cles are re­spon­si­ble for 40 per cent of Lon­don's NOx emis­sions.

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