Pollutionwatch: will carmakers follow VW and revamp vehicles?

Five years ago, Volkswagen admitted to using software that ensured its cars were on their best behaviour when tested but could produce more pollution at other times. Court cases followed and public confidence in diesel collapsed.

Across Europe VW vehicles were recalled. Simple modifications were made: new software for 1.6 and 2.0 litre engines and new air intakes on 1.6 litre models. But did it make any difference?

Research starting in 2012 King’s College London, and then the University of York, shone light beams across UK roads and measured exhaust from 23,000 vehicles that met Euro 5 standards.

Analysis showed a more than 30% decrease in the nitrogen oxides from 1.6 and 2.0 litre VW vehicles. Non-VW cars stayed the same but many were found to have cleanup systems that were optimised for the legal test temperature, especially the General Motors (Vauxhall) and Renault group, but performed less well at other times. It will be many years before these diesels leave the fleet.

Legal limits for nitrogen dioxide were set for 2010 but most towns and cities are still failing. Should manufacturers follow VW and recall old cars for engine and software modifications to reduce the health burden from polluted air?

LEAVE A REPLY

Please enter your comment!
Please enter your name here

Enter Your Information Below To Receive Free Trading Ideas, Latest News, And Articles.

Please Enter Your Email Address:




Your information is secure and your privacy is protected. By opting in you agree to receive emails from us and our affiliates. Remember that you can opt-out any time, we hate spam too!

Latest

Artificial fog and breeding coral: study picks best Great Barrier Reef rescue ideas

Brightening clouds with salt crystals and deploying slicks of coral larvae to try and limit the impacts of global heating on the Great Barrier...

A touch of class in Middlesbrough accents | Brief letters

We arrived back at Heathrow from New Zealand last week, on flights from Auckland. We exited the airport with no checks or testing. Can...

Welsh seagrass meadow sows hope for global restoration

Seagrass is a wonder plant but unrecognised and sorely neglected. This is a flowering plant with long ribbon-like leaves that often grows in the...

If Jeff Bezos really wants to fight the climate crisis, he should just pay his taxes | Guy T Saperstein

In the wake of the devastating Australian bushfires, Jeff Bezos announced last month that he will donate $10bn to fight the climate crisis. As...

Animals Farmed: Mink Covid cull, Dutch livestock protests and net zero farms

News from around the world European farmers are on alert after recent outbreaks of highly pathogenic avian influenza among wild and domestic birds in western...