Connect with us

Hi, what are you looking for?

CleanTechnica
Real-world emissions levels from diesel and petroleum/gasoline-powered Euro 6 cars are illegally high, according to a new study commissioned by the International Council on Clean Transportation (ICCT).

Air Quality

Euro 6 Diesel & Petrol Cars Exceeding Legal Emissions Levels During Real-World Use, ICCT Study Finds

Real-world emissions levels from diesel and petroleum/gasoline-powered Euro 6 cars are illegally high, according to a new study commissioned by the International Council on Clean Transportation (ICCT).

Real-world emissions levels from diesel and petroleum/gasoline-powered Euro 6 cars are illegally high, according to a new study commissioned by the International Council on Clean Transportation (ICCT).

To be more specific, the study — conducted by the Laboratory of Applied Thermodynamics of the Aristotle University of Thessaloniki, in concert with its spin-off company Emisia — found that carbon dioxide and NOx emissions levels during the real-world performance of 4 tested Euro 6 passenger cars exceeds established certification levels.

The lot of 4 Euro 6 passenger cars that was tested was comprised of 3 diesel cars and 1 petrol/gas car — all with different aftertreatment technologies.

The press release explains the methodology of the testing: “First, the laboratory testing reiterated the NEDC type-approval test using two different estimation of on-road frictions for the different vehicles (road-load settings). The first used the car manufacturer’s original parameters, and the second our own independent measurements. Another series of tests completed the laboratory investigation and measured emissions on different vehicle speed profile (i.e., ARTEMIS, WLTC) at ambient conditions varying from 18°C to 25°C.

“Second, the four vehicles were tested on the road following the RDE regulation protocol, which includes defined limits for dynamic driving conditions (e.g., exclusion based on vehicle’s speed and acceleration, and cumulative positive altitude). For the last series of on-road tests, the four vehicles were driven more dynamically on a hilly road to investigate emission levels outside the scope covered by the regulation.”

So, what were the findings? The graph posted in this article pretty much sums the matter up: The results of the current testing process are in no real way indicative of real-world emissions levels.

Here’s an overview of the findings:

  • Every tested vehicle exceeded their carbon dioxide (CO2) certification levels in a range varying from 21% to 37% under the laboratory type-approval test using real-word road-load settings.
  • Two of the three diesel vehicles exceeded the nitrogen-oxides (NOx) limit by 19% and 66% while tested under the laboratory type-approval test.
  • Under RDE-compliant on-road trips, NOx emissions from diesel vehicles showed average levels varying from 5 to 16 times the Euro 6 limit.
  • NOx emissions of diesel vehicles driven in more dynamic driving conditions increased further to reach a range from 26 to 40 times the Euro 6 limit.
  • NOx and carbon monoxide (CO) emissions from the gasoline vehicle remained below the Euro 6 limit under any of the laboratory tests and RDE-compliant trips. While tested in more dynamic on-road conditions, emissions exceeded the laboratory type-approval limit by a factor of 2.5 for NOx and by a factor of 2.4 for CO.

The findings really make you wonder: When are authorities in Europe going to get around to actually dealing with the issue of automobile-associated air pollution.


Appreciate CleanTechnica’s originality? Consider becoming a CleanTechnica Member, Supporter, Technician, or Ambassador — or a patron on Patreon.
 
 
Have a tip for CleanTechnica, want to advertise, or want to suggest a guest for our CleanTech Talk podcast? Contact us here.
Written By

James Ayre's background is predominantly in geopolitics and history, but he has an obsessive interest in pretty much everything. After an early life spent in the Imperial Free City of Dortmund, James followed the river Ruhr to Cofbuokheim, where he attended the University of Astnide. And where he also briefly considered entering the coal mining business. He currently writes for a living, on a broad variety of subjects, ranging from science, to politics, to military history, to renewable energy.

Comments

#1 most loved electric vehicle, solar energy, and battery news & analysis site in the world.

 

Support our work today!

Advertisement

Power CleanTechnica: $3/Month

Tesla News Solar News EV News Data Reports

Advertisement

EV Sales Charts, Graphs, & Stats

Advertisement

Our Electric Car Driver Report

30 Electric Car Benefits

Tesla Model 3 Video

Renewable Energy 101 In Depth

solar power facts

Tesla News

EV Reviews

Home Efficiency

You May Also Like

Cars

Germany saw plugin electric vehicle market share reach 22.1% in April 2021, with full battery electrics at 10.3%, their second highest ever share. The...

Air Quality

Originally published on RMI.org. By Brady Seals & Leah Louis-Prescott Burning gas, wood, and biomass in buildings now has more negative health effects than burning coal in many...

Cars

The UK saw plugin electric vehicle market share at 13.25% in April 2021, with full electrics at a healthy 6.5% despite recent cuts in...

Cars

The first Ford Mustang Mach-E buyer in Norway just received his vehicle today. This news helps answer a question I asked earlier today. I...

Copyright © 2021 CleanTechnica. The content produced by this site is for entertainment purposes only. Opinions and comments published on this site may not be sanctioned by and do not necessarily represent the views of CleanTechnica, its owners, sponsors, affiliates, or subsidiaries.