Geladi, Paul
- Institutionen för skogens biomaterial och teknologi, Sveriges lantbruksuniversitet
Sammanfattning
Positive Matrix Factorization (PMF) was used to identify and apportion candidate sources of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/F) in samples of offshore and coastal surface sediments from the Baltic Sea. Atmospheric deposition was the dominant source in offshore and pristine areas, in agreement with previous studies. Earlier chlorophenol use and a source suggested origins from pulp and paper production and related industries were identified as important coastal sources. A previously presumed major source, chlorine bleaching of pulp, was of only minor importance for modern Baltic surface sediments. The coastal source impacts were mostly local or regional, but pattern variations in off shore samples indicate that coastal sources may have some importance for offshore areas. Differences between sub-basins also indicated that local and regional air emissions from incineration or other high-temperature processes are more important in the southern Baltic Sea compared to those in northerly areas. These regional differences demonstrated the importance of including offshore sediments from the Bothnian Bay, Gulf of Finland, and other areas of the Baltic Sea in future studies to better identify the major PCDD/F sources to the Baltic Sea.
Publicerad i
Environmental Science and Technology
2010, volym: 44, nummer: 5, sidor: 1690-1697
Utgivare: AMER CHEMICAL SOC
SLU författare
Wiberg, Karin
- Umeå Universitet
Globala målen (SDG)
SDG6 Rent vatten och sanitet för alla
SDG14 Hav och marina resurser
UKÄ forskningsämne
Annan naturresursteknik
Miljövetenskap
Publikationens identifierare
- DOI: https://doi.org/10.1021/es9030084
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/60785