High-resolution gridded CO2 and pollutant emission data from road traffic in Indian cities

We present CHETNA-Road, a comprehensive 500-meter gridded city traffic emissions dataset for 15 Indian cities derived from street-level floating car data (FCD) based on GPS position and speed of individual vehicles. The dataset includes daily CO2 and ten major pollutant emissions, namely nitrogen oxides (NOₓ), particulate matter (PM2.5 and PM₁₀), carbon monoxide (CO), volatile organic compounds (VOC), methane (CH₄), nitrous oxide (N₂O), ammonia (NH₃), lead (Pb), and black carbon (BC). The emissions were computed using the COPERT model, which includes speed and vehicle-type dependent emission factors. Our dataset provides critical insights into India’s road traffic emissions and serves as a foundation for targeting congestion and pollution reduction strategies.