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Laboratory and on-road testing of exhaust emissions of two modern China 5 light-duty gasoline vehicles

There is growing evidence that vehicle emissions under real-world driving conditions can be significantly higher than certified emissions values as tested in the laboratory. As part of China’s...
Published 2018.07.13: Publication

China VI: A milestone for the world’s transition to soot-free vehicles

On June 28, China officially released the China VI emission standard for new heavy-duty vehicles, which is equivalent to, or in some aspects even more stringent, than the Euro VI emission standard....On June 28, China officially released the China VI emission standard for new heavy-duty vehicles. If effectively implemented, it will transition all new heavy-duty vehicles in China to soot-free...
Published 2018.07.03: Blog Post

Cost-benefit assessment of proposed China 6 emission standard for new light-duty vehicles

In May 2016, the Chinese Ministry of Environmental Protection (MEP) released a proposal, “Limits and Measurement Methods for Emissions from Light-Duty Vehicles (LDVs),” also known as the China 6...
Published 2017.05.18: Publication

Beyond hazardous

In Beijing, air pollution is once again off the charts. The first red alert of the winter was issued in December while I was there, and the heavy smog (mixed with apparently hazardous fog) is now...In Beijing, air pollution is once again off the charts. The air-quality challenge is exacerbated by geographical and meteorological conditions, but the human-made pollution is anything but a natural...
Published 2017.01.04: Blog Post

Technology pathways for diesel engines used in non-road vehicles and equipment

Internal combustion engines are ubiquitous in today’s society. Applications for these engines cover a broad spectrum, ranging from vehicles that transport passengers and move goods to specialized...
Published 2016.09.16: Publication

Review of LDV OBD requirements under the European, Korean and Californian emission programs

On-board diagnostic (OBD) systems monitor the performance of engine and aftertreatment components, especially those responsible for controlling harmful pollutant emissions. The OBD system does not...
Published 2016.03.31: Publication

Exploring the climate and health benefits from public transit

As the world rapidly becomes more motorized and more urban, it faces an increasingly urgent dilemma: how to move people efficiently while improving air quality and reducing climate impacts. In high-...It is possible to mitigate climate change and lower health impacts through less reliance on private automobiles, reduced urban sprawl, higher rates of public transit, and stringent vehicle emission...
Published 2015.05.08: Blog Post

The 4th Sino-US Workshop on Motor Vehicle Pollution Prevention and Control

On June 9-10, 2014, the International Council on Clean Transportation (ICCT) and the Vehicle Emission Control Center of the Ministry of Environmental Protection (VECC-MEP) co-sponsored the 4th Sino-...
Published 2014.06.30: Event

Estimated cost of emission reduction technologies for LDVs

The cost of meeting standards for conventional pollutant emissions is a perennial bone of contention in arguments over vehicle emission regulations. The public health benefits of the most stringent...
Published 2012.06.11: Publication

Urban off-cycle NOx emissions from Euro IV/V trucks and buses

Despite meeting more stringent regulatory standards for exhaust emissions during type approval, many Euro IV and Euro V heavy-duty vehicles equipped with selective catalytic reduction (SCR) systems...
Published 2012.04.10: Publication

Low-sulfur gasoline and diesel: The key to lower vehicle emissions

It is impossible to reduce air pollution from the transportation sector without getting sulfur out of fuels. Sulfur is a pollutant itself, but more importantly it interferes with and eventually...
Published 2003.05.30: Publication