Disclaimer : This viz is for comparision only. There are many nuances that have been (deliberately) overlooked.
Particulate Matter 2.5 (PM2.5) is one of the worst pollutants in the atmosphere. The motivation for this visualization is to understand relative densities of particulate matter in different cities of the world. I was inspired by this New York Times article. All data is from World Air Quality Index Project. Check this out to understand the AQI scale and its health implications better.
Made with ❤️ by Vivek