“…This decrease is mainly due to the drastic drop in sulphate content in wet deposits and that is in accordance to the research results obtained in different countries (Anderson, Downing 2006;Hertel et al 2003;Schöpp et al 2003;Kopácek et al 1997;EMEP 2004;Matzner 1989) as well as in other places of Lithuania (Jasinevičienė, Šopauskienė 1999;Šopauskienė, Būdvytytė 1994Šopauskienė, Būdvytytė , 1996. For example, sulphate contents in wet deposits decrease almost twice from 1994 to 1998 in the monitoring stations of NPs Aukštaitija, Žemaitija and Dzūkija, the later changes up to 2003 are not significant (Augustaitis et al 2006).…”