"Kuittinen" . "efed3666948238dca933b4d08e04baed" . "Black carbon"@en . "FSN"@en . "LII"@en . "Aethalometer"@en . "Instrumental comparison"@en . "Marine engine emissions"@en . "Smoke meter"@en . "MAAP"@en . . "Niina" . . . "PAS"@en . "Niina Kuittinen" . "EC TOA"@en .