
OpenAQ now aggregates PM2.5 data from our first historical (non-real-time) research-grade source from the SPARTAN project at Dalhousie University! SPARTAN (Surface PARTiculate mAtter Network) is a spectacular initiative to measure PM around the world due to “insufficient coverage at the global scale to allow assessment of long-term human exposure to fine particulate matter.” Data are collected from 13 countries in the 14 locations shown below, and the OpenAQ platform is cur…