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Guideline on the determination of Perfluoroalkylated substances (PFAS) in seawater.
(HELCOM, Helsinki, Finland, 2018)
Perfluorooctane sulphonic acid (PFOS), perfluorooctanoic acid (PFOA) and other per- and polyfluoroalkyl substances (PFASs) are considered global environmental contaminants. PFOS and PFOA are chemically and biologically ...
Guideline for the determination of heavy metals in sediment.
(HELCOM, Helsinki, Finland, 2018)
This Technical note provides advice on the analysis of heavy metals in total marine and coastal sediments and sieved fractions, including sampling and sample handling. The analysis of heavy metals in sediments basically ...
HELCOM Guidelines for monitoring continuous noise.
(HELCOM, Helsinki, Finland, 2018)
Continuous anthropogenic noise may exert a significant pressure on the marine environment due to its constancy and extent over vast areas. Distant ships, wind and rain, are examples of continuous sound sources. Sound from ...
Guidelines for monitoring Seal abundance and distribution in the HELCOM area.
(HELCOM, Helsinki, Finland, 2018)
HELCOM Recommendation 27-28/2 tasks the HELCOM SEAL Expert Group to develop and coordinate monitoring programmes to, among other things, assess the abundance and distribution, and the trends ofthese parameters of the Baltic ...
Guidelines for sampling and determination of dissolved oxygen in seawater.
(HELCOM, Helsinki, Finland, 2018)
The dissolved oxygen (DO) content in seawater is controlled by several unrelated processes including exchange with air, metabolism of plants and animals, microbial and chemical decomposition of organic matter, hydrodynamic ...