How diesel cars are pumping out NINE times the limit for harmful emissions – and Jeep, Nissan and Renault vehicles are worst offenders, expose tests by Which?
By Sean Poulter Consumer Affairs Editor For The Daily Mail 00:02 BST twenty two Mar 2017, updated 12:09 BST twenty two Mar two thousand seventeen
- Diesel cars on British roads can emit more than nine times the level of dangerous pollutants permitted in official tests
- Research found particular issues with Jeep, Renault and Nissan vehicles
- Figures were compiled by Which? whose experts tested two hundred seventy eight diesels
Diesel cars on British roads can emit more than nine times the level of dangerous pollutants permitted in official tests.
The figures come from research b4336920 How diesel cars are pumping out NINE times the limit for harmful emissions – and Jeep, Nissan and Renault vehicles are worst offenders, expose tests by Which? consumer group Which?, whose experts tested two hundred seventy eight diesels inbetween two thousand twelve and 2016.
It said the problem is widespread, but there were particular issues with the Jeep, Renault and Nissan vehicles.
The EU sets boundaries for emissions of nitrogen oxides (NOx) during tests on cars before they are permitted on the road.
NOx pollution on roads is associated with ems of thousands of early deaths every year in the UK. Such is the concern for public health that some campaigners are calling for diesel engines to be banned.
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VW has been in the dock around the world for fitting ‘defeat devices’ which cheated official emissions tests to make NOx levels look low.
But it is clear from the Which? figures that virtually all the major manufacturers are responsible for selling cars that emit much higher levels of pollutants in ‘real world’ driving conditions. The EU has tightened the emission levels permitted by fresh cars six times since one thousand nine hundred ninety three to protect public health.
The NOx standard introduced in two thousand eleven as part of the Euro five regime was set at 0.18grams per kilometre(g/km). It was tightened to 0.08g/km under the Euro six thresholds introduced in two thousand fifteen and covers vehicles sold since then.
All the cars tested by Which? met the required standards during official examinations. But there is no legal requirement to hit these levels once the cars are on the road.
Eleven older diesel Renault cars tested by Which? had NOx emissions that were an average of four times higher than the Euro five limit.
Five more modern ones, sold since 2015, had NOx levels that were an average of nine times the Euro six limit. The Renault Grand Scenic 1.6 dCi one hundred thirty produced 0.73g/km of NOx. Six Nissan cars with Euro five diesel engines had average NOx emissions that were Four.Four times the limit permitted in official tests.
Jeep produced some of the highest emissions. Two of its older models were emitting an average 1.74g/km of NOx, which is nine-and-a-half times the Euro five limit they met in official tests.
Which? tested thirty one BMW cars, which had some of the lowest ‘real world’ NOx emissions for diesels.
The average for BMWs was 0.41g/km, which is Two.Trio times the test limit for Euro five cars. More modern BMWs had an average of 0.14g/km – 1.75 times the Euro six standard.
Fresh tests to assess ‘real driving emissions’ and car spectacle will be introduced in September.
Renault said all its vehicles conform to current standards. It said: ‘Since mid-2015, Groupe Renault has committed to improve the spectacle of its anti-pollution systems. The vehicles tested by Which? would not have benefited from this improvement plan.’
Nissan said: ‘All our vehicles sold in Europe meet the Euro Five/6 emission standards. This [Which?] report shows significant variances for most brands tested.’
Diesel cars pumping out nine times limit for harmful emission, Daily Mail Online
How diesel cars are pumping out NINE times the limit for harmful emissions – and Jeep, Nissan and Renault vehicles are worst offenders, expose tests by Which?
By Sean Poulter Consumer Affairs Editor For The Daily Mail 00:02 BST twenty two Mar 2017, updated 12:09 BST twenty two Mar two thousand seventeen
- Diesel cars on British roads can emit more than nine times the level of dangerous pollutants permitted in official tests
- Research found particular issues with Jeep, Renault and Nissan vehicles
- Figures were compiled by Which? whose experts tested two hundred seventy eight diesels
Diesel cars on British roads can emit more than nine times the level of dangerous pollutants permitted in official tests.
The figures come from research b4336920 How diesel cars are pumping out NINE times the limit for harmful emissions – and Jeep, Nissan and Renault vehicles are worst offenders, expose tests by Which? consumer group Which?, whose experts tested two hundred seventy eight diesels inbetween two thousand twelve and 2016.
It said the problem is widespread, but there were particular issues with the Jeep, Renault and Nissan vehicles.
The EU sets thresholds for emissions of nitrogen oxides (NOx) during tests on cars before they are permitted on the road.
NOx pollution on roads is associated with ems of thousands of early deaths every year in the UK. Such is the concern for public health that some campaigners are calling for diesel engines to be banned.
Related Articles
VW has been in the dock around the world for fitting ‘defeat devices’ which cheated official emissions tests to make NOx levels look low.
But it is clear from the Which? figures that virtually all the major manufacturers are responsible for selling cars that emit much higher levels of pollutants in ‘real world’ driving conditions. The EU has tightened the emission levels permitted by fresh cars six times since one thousand nine hundred ninety three to protect public health.
The NOx standard introduced in two thousand eleven as part of the Euro five regime was set at 0.18grams per kilometre(g/km). It was tightened to 0.08g/km under the Euro six thresholds introduced in two thousand fifteen and covers vehicles sold since then.
All the cars tested by Which? met the required standards during official examinations. But there is no legal requirement to hit these levels once the cars are on the road.
Eleven older diesel Renault cars tested by Which? had NOx emissions that were an average of four times higher than the Euro five limit.
Five more modern ones, sold since 2015, had NOx levels that were an average of nine times the Euro six limit. The Renault Grand Scenic 1.6 dCi one hundred thirty produced 0.73g/km of NOx. Six Nissan cars with Euro five diesel engines had average NOx emissions that were Four.Four times the limit permitted in official tests.
Jeep produced some of the highest emissions. Two of its older models were emitting an average 1.74g/km of NOx, which is nine-and-a-half times the Euro five limit they met in official tests.
Which? tested thirty one BMW cars, which had some of the lowest ‘real world’ NOx emissions for diesels.
The average for BMWs was 0.41g/km, which is Two.Trio times the test limit for Euro five cars. More modern BMWs had an average of 0.14g/km – 1.75 times the Euro six standard.
Fresh tests to assess ‘real driving emissions’ and car spectacle will be introduced in September.
Renault said all its vehicles conform to current standards. It said: ‘Since mid-2015, Groupe Renault has committed to improve the spectacle of its anti-pollution systems. The vehicles tested by Which? would not have benefited from this improvement plan.’
Nissan said: ‘All our vehicles sold in Europe meet the Euro Five/6 emission standards. This [Which?] report shows significant variances for most brands tested.’