Long-term trends in PM2.5 mass and particle number concentrations in urban air: The impacts of mitigation measures and extreme events due to changing climates

Alma Lorelei de Jesus, Helen Thompson, Luke D. Knibbs, Michał Kowalski, Josef Cyrys, Jarkko V. Niemi, Anu Kousa, Hilkka Timonen, Krista Luoma, Tuukka Petäjä, David C. S. Beddows, Roy M. Harrison, Philip K. Hopke, Lídia Morawska