Global estimates of daily ambient fine particulate matter concentrations and unequal spatiotemporal distribution of population exposure: a machine learning modelling study

concentrations over recent decades.

concentrations for each calendar month were averaged across the 20-year period to investigate global seasonal patterns.

. Distinct seasonal patterns were indicated in many regions of the world. INTERPRETATION: , especially for areas where monitoring station data are not available. FUNDING: Australian Research Council, Australian Medical Research Future Fund, and the Australian National Health and Medical Research Council.