Sammendrag
DIHVA IKS designed a monitoring program for coastal water in the Hardanger river basin for 2017-
2021, on behalf of the companies Boliden Odda AS and Tizir Titanium & Iron AS. The program was
approved by the Norwegian Environment Agency in a letter of 22.12.2016. The program for 2019 was
carried out by NIVA, in collaboration with Hardanger Miljøsenter.
In this program (2017-2021), measurements of the following quality elements should be carried out
at certain stations in the water bodies Sørfjorden inner part (ID 0260040900-1-C), Sørfjorden outer
part (ID 0260040900-2-C) and Samlafjorden (ID 0260040800-C):
In the water column: Secchi depth, temperature, salinity, oxygen, metals and fluoride.
On the sea bottom: Benthic fauna and sediments habitat characteristics, metals and PAHs in
sediment.
In biota: Metals in fish (tusk), metals and PAHs in mussels.
In 2019, the program comprised stations in Sørfjorden inner part (ID 0260040900-1-C) and
Sørfjorden outer part (ID 0260040900-2-C), as well as the following quality elements:
In the water column: Secchi depth, temperature, salinity, oxygen, metals and fluoride.
In biota: Metals and PAHs in mussels.
Biological quality elements were not evaluated in 2019. (...)
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