There are currently around 90 cities that India's Central Pollution Control Board (CPCB) identified as critically polluted. Particulate matter (PM), especially fine particulate matter (PM2.5), dominates the concern. Other air pollutants such as NO2, ozone (O3), and air toxics are also problematic. The health problems caused by these pollutants are affecting not only large cities, but also many smaller, rapidly expanding cities across India.

This paper compares fuel consumption / CO2 values of passenger cars from different sources and aims at quantifying the discrepancy between laboratory type-approval values and real-world values, including a retrospective analysis for the years 2001-2011 to determine if the gap between the two datasets has increased over time. Potential explanations for the discrepancies found are discussed and possible practical solutions for the future outlined.

This new working paper by ICCT identifies the most effective technologies for CO2, emissions and safety measures and maps the status of regulatory programs for 2- and 3-wheeler management in Asian countries.