Quantcast

Even the Newest 'Clean' Diesel Cars Release 'Toxic Smog,' Study Finds

Energy
CC0 Public Domain

A new analysis reveals that the latest models of diesel cars approved for sale since the 2015 Volkswagen "dieselgate" scandal are exceeding nitrogen oxides (NOx) limits set by the Europe Union.

For the study, the International Council on Clean Transportation (ICCT) used a "difficult-to-impossible to cheat" emissions test involving remote-sensing technology and statistical analysis to measure real-world exhaust emissions on more than 700,000 cars and 4,850 vehicle models across Europe.


The results were "a striking confirmation of [the] worst fears about diesel cars," said the U.S.-based ICCT, as quoted by the Financial Times.

According to their findings, all Euro 6 rated cars—the latest emissions standard for diesels—exceeded the Euro 6 diesel NOx emissions limits measured in real-world driving.

For Euro 6 cars in particular, the researchers also found:

  • Four manufacturer groups had average emissions more than 12 times above the Euro 6 diesel type-approval limit, and the highest-emitting vehicle family has emissions 18 times the limit.
  • All Euro 6 diesel models rated exceeded the Euro 6 diesel NOx emissions limits measured in real-world driving.
  • The highest-emitting petrol Euro 6 vehicle family has approximately the same level of NOx emissions as the lowest-emitting diesel vehicle family.

The results were compiled in a new rating database called The Real Urban Emissions Initiative (TRUE). The study also found that all of the Euro 3, 4 and 5 diesels were in the red. Gasoline-fueled vehicles, in contrast, fared much better. Most Euro 3-5 petroleum vehicles had good or moderate ratings. And all Euro 6 petrol cars received a “good" or "moderate" rating.

ICCT

NOx pollution, which is emitted by automobiles, trucks and various non-road vehicles, is harmful to human health and the environment. Emissions of NOx exhaust gases can be linked to 38,000 premature deaths worldwide, including 1,100 deaths in the U.S., according to University of Colorado Boulder researchers.

The EU has a baseline limit of 0.08mph of nitrogen oxides per kilometer. But as the Guardian noted, the TRUE analysis reveals that diesel models released in 2016 were still on average five times above that limit.

"We can really conclude that pretty much all Euro 6 diesels on the market are not clean," Peter Mock, managing director of the ICCT in Europe, told the Financial Times.

Greg Archer, of the campaign group Transport & Environment, which is part of the TRUE initiative, added to the Guardian: "The True rating exposes the legacy of dieselgate—tens of millions of dirty diesels that are still on the roads producing the toxic smog we daily breathe. It identifies the worst performing models and regulators must act to require carmakers to clean these up."

The European Automobile Manufacturers' Association, which represents 15 major Europe-based car, van, truck and bus makers, called the study "misleading."

They contend the study is based on remote sensing results collected between 2011 and 2017, and therefore do not evaluate the on-road performance of the latest diesel vehicles approved to the Euro 6 diesel standard since September 2017.

"The claims from the new 'TRUE' study are misleading for consumers," stated Erik Jonnaert, secretary general of the European Automobile Manufacturers' Association. "EU policy makers will be equally disappointed that there is no acknowledgement that the latest Euro 6 diesel cars complying with the new RDE legislation are very clean."

EcoWatch Daily Newsletter

By Joe Vukovich

Under the guise of responding to consumer complaints that today's energy- and water-efficient dishwashers take too long, the Department of Energy has proposed creating a new class of dishwashers that wouldn't be subject to any water or energy efficiency standards at all. The move would not only undermine three decades of progress for consumers and the environment, it is based on serious distortions of fact regarding today's dishwashers.

Read More Show Less

By Emily Moran

If you have oak trees in your neighborhood, perhaps you've noticed that some years the ground is carpeted with their acorns, and some years there are hardly any. Biologists call this pattern, in which all the oak trees for miles around make either lots of acorns or almost none, "masting."

Read More Show Less
Sponsored

By Catherine Davidson

Tashi Yudon peeks out from behind a net curtain at the rooftops below and lets out a sigh, her breath frosting on the windowpane in front of her.

Some 700 kilometers away in the capital city Delhi, temperatures have yet to dip below 25 degrees Celsius, but in Spiti there is already an atmosphere of impatient expectation as winter settles over the valley.

Read More Show Less

The Dog Aging Project at the University of Washington is looking to recruit 10,000 dogs to study for the next 10 years to see if they can improve the life expectancy of man's best friend and their quality of life, as CNN reported.

Read More Show Less
Warragamba Dam on Oct. 23 in Sydney, Australia. Sydney's dams have been less than 50 percent full as drought conditions continue across New South Wales. Brook Mitchell / Getty Images

While Sydney faced "catastrophic fire danger" for the first time earlier this week, and nearly 130 wildfires continue to burn in New South Wales and Queensland, Sydney now faces another problem; it's running out of water.

Read More Show Less
Sponsored
The European Investment Bank will stop lending for fossil fuel projects. ForgeMind Archimedia / CC BY 2.0

By Eoin Higgins

Climate activists celebrated Thursday the decision of the European Investment Bank to stop funding most oil and coal projects by 2021, part of a bid to be the world's first "climate bank."

Read More Show Less
Campaigners from Friends of the Earth Scotland gather to demand clean air in August 2015. MAVERICK PHOTO AGENCY / Flickr / CC BY 2.0

Air pollution particles from motor vehicle exhaust have been linked to brain cancer for the first time, researchers at McGill University in Montreal say.

Read More Show Less
A measure that would fine parents who refuse to vaccinate their children passed Germany's parliament Thursday. Self Magazine / CC BY 2.0

A measure that would fine parents who refuse to vaccinate their children for measles close to $2,800 passed Germany's parliament Thursday, the Associated Press reported.

Read More Show Less