This new analysis identifies especially high risk levels in India and the developing countries of Asia where air pollution levels are the highest in the world.

A new report from the Health Effects Institute (HEI), "Understanding the Health Effects of Ambient Ultrafine Particles" concludes that while there have been a growing number of laboratory and field studies of the effects of ultrafine particles (UFPs), “toxicologic studies in animals, controlled human exposure studies, and epidemiologic studies t

The London Congestion Charging Scheme (CCS) – which charged for travel into central London and reduced traffic volume – showed little evidence that it improved air quality, according to a study published by the Health Effects Institute (HEI).

This report contains studies in Chennai and Delhi led by Dr. Kalpana Balakrishnan and Dr. Uma Rajarathnam, respectively.

This report reviews new vehicle fuels and technologies that are likely to be commercially available within the next 10 years in the United States and other industrialized countries at a level that could result in significant population exposure.

This report is the first comprehensive literature review to come out of HEI's Public Health and Air Pollution in Asia (PAPA) program. The review builds on an initial assessment conducted in 2004 and describes the current scope of the Asian literature on the health effects of outdoor air pollution, enumerating and classifying more than 400 studies.

Motor vehicles are a significant source of urban air pollution and are increasingly important contributors of anthropogenic carbon dioxide and other greenhouse gases.

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