A Look at Air Quality (PM2.5) Over the Past 24 hours in 5 Random Cities Around the World

Just for fun, we made a graph showing recent PM2.5 concentrations as measured by single stations in 5 in cities on 4 different continents + Oceania today, using all local times. It is cool to be able to compare places by local time in order to see similar (and not similar) trends in air quality at a given local time of day. We also put on the 24 hour WHO Guideline for comparison.

Want to access air quality data from across the world in one simple format to make cool stuff? Use the open API on openaq.org. (Need any help, want to help out on this open-source project or have other questions? Shoot us an email at info@openaq.org)

Recent PM2.5 concentrations as measured by single stations in 5 in cities on 4 different continents + Oceania using local times. We’ve used data from a single station in each city, so this is a rough look at PM2.5 levels for each place — air quality can vary widely across a given city. The dashed black line represents the 24 hour WHO PM2.5 Guideline. Data accessed at openaq.org.

The data for this graph have been accessed from openaq.org, which aggregates air quality data from official monitors on other sites. We’ve used data from a single station in each city, so this is a rough look at PM2.5 levels for each place — air quality can vary widely across a given city.

Below, the specific stations are listed for each city and more information can be found here:

Hanoi — US Diplomatic Post: Hanoi

Jakarta — US Diplomatic Post: Jakarta Central

Sao Paulo — Campinas-V.União

Sydney — Richmond

Warsaw — Komunikacyjna

Want to know more about the World Health Organization Outdoor Air Quality Guidelines? Go here.