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    • Long-term analysis of clear-sky new particle formation events and nonevents in Hyytiala 

      Dada L; Paasonen P; Nieminen T; Mazon SB; Kontkanen J; Perakylaa O; Lehtipalo K; Hussein T; Petaja T; Kerminen VM; Back J; Kulmala M (Copernicus GmbH, 2017)
      Abstract. New particle formation (NPF) events have been observed all around the world and are known to be a major source of atmospheric aerosol particles. Here we combine 20 years of observations in a boreal forest at the ...