Browse by topic: Air Pollution, Cars

Filters:

Realistic real-world driving emissions tests: a last chance for diesel cars?

Sketch of a book (default image for publications

Air pollution emissions limits for cars, vans and trucks (Euro Standards) have been progressively tightened, on paper, over 25 years but have failed to deliver real-world improvements for several key pollutants, notably nitrogen dioxide. This is because obsolete tests and “cycle beating” techniques have been used by carmakers leading to levels of emissions from some cars many times higher on the road than in laboratory tests. In October 2014, the Commission will be discussing progress and next steps with EU member states. This paper outlines key issues for member states to ensure that the new real-world (PEMS) tests are robust and representative of real-world driving in order for emissions to decline on the road. 

Brussels and Gothenburg highlight difficulties of tackling congestion

The unofficial capital of Europe is the most congested city in Europe, according to the latest ranking of congested cities, but opinion sampling and a vote in Gothenburg suggest public willingness for tackling congestion is not great.

High diesel NOx emissions ‘likely for decades’ due to failing tests

High levels of nitrogen oxides (NOx) in cities, caused by diesel cars, are likely to persist for decades, the UK Government was recently forced to admit. In evidence to the European Court of Justice, in a case brought by Client Earth, the government admitted it would be at least 2030 before London, Leeds and Birmingham meet nitrogen dioxide standards that should have been achieved in 2010.

Cargo bike revolution helps business and environment

The vehicle pictured may look like something from a James Bond film, but it is one of a range of ‘cargo bikes’ that have been heavily promoted over the last couple of months, following the conclusion of a survey showing the potential benefits of deliveries by bicycle.

Car CO2 emissions drop 4%, but test manipulation at play

Carbon dioxide missions from new cars sold in the EU decreased almost 4% in 2013 compared to the previous year, according to provisional data from the European Environment Agency (EEA). But T&E has warned that the official figures do not match up on the road. While progress has been made by carmakers, flaws in the emissions test exaggerate the improvements, it is claimed.

Tackling real world emissions from cars

Sketch of a book (default image for publications

Light duty vehicles (LDVs) emit more pollutants on the road than in laboratory conditions. In order to solve this problem the Commission decided to introduce complementary type-approval procedures to measure gaseous and particulate emissions during real driving to make sure that they are similar to legal emission limits. To achieve this, the Real-Driving Emissions-Light Duty Vehicles (RDE-LDV) working group was created in 2011. Work in this group is currently focused on RDE tests during initial type approval.

This paper has been prepared by T&E to aid the work of this group. The paper considers the main topics of discussion: data analysis methods, boundary conditions, conformity factor, equipment (portable emissions measurement system – PEMS) and scope.

Air pollution forces Paris number plate ban

A peak in air pollution brought a drastic change to transport habits in Paris for one day, following a combination of unseasonably hot weather and diesel cars fumes. No strangers to air pollution regularly exceeding EU limits, the authorities in the French capital banned all cars with even-numbered licence plates from entering the city on 17 March due to exceptionally high levels. The idea was to ban odd-numbered plates the next day, but that proved unnecessary as a 25% reduction in traffic and cooler weather brought pollution levels down.

Pages