Arctic smoke – record high air pollution levels in the European Arctic due to agricultural fires in Eastern Europe.

Stohl, A.; Berg, T.; Burkhart, J.F.; Fjæraa, A.M.; Forster, C.; Herber, A.; Hov, Ø.; Lunder, C.; McMillan, W.W.; Oltmans, S.; Shiobara, M.; Simpson, D.; Solberg, S.; Stebel, K.; Ström, J.; Tørseth, K.; Treffeisen, R.; Virkkunen, K.; Yttri, K.E.