Topics / Clean Air

The world's transportation fleet—passenger cars and light trucks, heavy trucks and buses, motorcycles and scooters and tuk-tuks, farm tractors and construction equipment, ships and planes—is a massive source of outdoor air pollution, especially in urban areas. The effects of long-term exposure to fine particulates, nitrogen oxides, hydrocarbons, carbon monoxide, air toxics and other pollutants contained in vehicle exhaust include lung cancer, heart disease, stroke, asthma, stunted lung growth in children, and other harmful outcomes. And in some cases, as with the black carbon that is a component of particulate emissions, these pollutants also contribute to short-term climate warming.

ICCT's Clean Air Program advises on strategies to address the public health and near-term climate impacts of outdoor air pollution from transportation. We develop technical underpinnings for the design and implementation of emission control policies to mitigate those impacts at the international, national, and city scales. These policies can include national vehicle emission standards, fuel-quality standards to limit the sulfur content of diesel and petrol, compliance and enforcement programs to ensure that standards are met in practice, vehicle scrappage and repair programs, and other types of initiatives, such as establishment of low-emission zones.

Most Recent

Discusses the potential of zero-emission technologies to reduce emissions from non-road transport, including aviation, maritime, off-road, and rail.

Evaluates the costs incurred by manufacturers of diesel engines used in non-road vehicles and equipment for emission reduction technologies needed to comply with increasingly stringent standards.

This report assesses progress in 2018 toward implementing the Climate and Clean Air Coalition's global strategy to introduce low-sulfur fuels and cleaner diesel vehicles.

2018.07.18

Discusses the potential of zero-emission technologies to reduce emissions from non-road transport, including aviation, maritime, off-road, and rail.

Publication: Working paper
2018.07.11

Evaluates the costs incurred by manufacturers of diesel engines used in non-road vehicles and equipment for emission reduction technologies needed to comply with increasingly stringent standards.

Publication: Working paper
2018.07.02

This report assesses progress in 2018 toward implementing the Climate and Clean Air Coalition's global strategy to introduce low-sulfur fuels and cleaner diesel vehicles.

Publication: Report
2018.01.03

Investigated the impacts of updating three standards in Mexico to align with the international best practices employed in the rest of North America: gasoline and diesel sulfur standards, passenger vehicle emissions standards, and truck and bus emissions standards. 

Publication: Working paper
2017.11.29
It's not the most important or even the worst thing about the Pruitt EPA's propo
Blog Post
2017.11.16
Sales of battery electric buses (BEBs) are surging in major cities around the world.
Blog Post

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