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Marine HNS Response Manual: Multi-regional Bonn Agreement, HELCOM, REMPEC.
(Project WestMopoco, 2021)
Maritime transport is often described as
“the backbone of globalized trade and the
manufacturing supply chain”, since more
than 80% of the global merchandise trade
by volume is carried by sea.
Some of the goods ...
Guidelines on the determination of chlorinated hydrocarbons in sediment.
(HELCOM, Helsinki, Finland, 2017)
These guidelines are based on the review from Smedes and de Boer (1994, 1998) and Eljarrat and Barceló (2009).
The analysis of chlorinated hydrocarbons in sediments generally involves extraction with organic solvents, ...
Guidelines for monitoring of chlorophyll a.
(HELCOM, Helsinki, Finland, 2016)
Increase in phytoplankton biomass is a direct consequence of advancing eutrophication. For monitoring
purposes, phytoplankton biomass is estimated by chlorophyll a (Chl a) concentration.
The amount of Chl a is not a ...
Guidelines for the determination of polycyclic aromatic hydrocarbons (PAH) in sediment.
(HELCOM, Helsinki, Finland, 2017)
This Technical note provides advice on the analysis of polycyclic aromatic hydrocarbons (PAH) in total marine sediments, sieved fractions, and suspended particulate matter. The analysis of PAH compounds in sediments basically ...
Guidelines for the determination of persistent organic compounds (POPs) in seawater.
(HELCOM, Helsinki, Finland, 2017)
These guidelines concentrate on the sampling and extraction of lipophilic persistent organic pollutants from seawater and also address special aspects of the sampling matrix. Those pollutants comprise the group of polycyclic ...
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 determination of salinity and temperature using CTD.
(HELCOM, Helsinki, Finland, 2017)
Salinity
Measurements based on electrical conductivity have since the 1960s replaced measurements of chlorinity.
The Practical Salinity Scale of 1978 (PSS-78) presently used, has been defined to maintain a continuity ...
Guidelines for non-indigenous species monitoring by extended Rapid Assessment Survey (eRAS).
(HELCOM, Helsinki, Finland, 2017)
The human-mediated introduction and establishment of non-indigenous species (NIS) in the marine environment are of worldwide concern. The main vectors for species introduction are maritime transport by either transport of ...
Guidelines for monitoring of water transparency (Secchi depth).
(HELCOM, Helsinki, Finland, 2017)
Water transparency serves as an index for the trophic state of a water body. It reflects eutrophication through changes in the phytoplankton abundance; increase in the ambient nutrient status in the water leads to higher ...
Guidelines for monitoring of turbidity.
(HELCOM, Helsinki, Finland, 2017)
Turbidity estimates the impact of light scattering due to particles on the level of light attenuation in the water column. It is affected by total suspended solids (i.e., organic and inorganic particles) in the water, and ...