Langtidseffekter av utslipp av aminer fra CO₂‐renseanlegg på vegetasjon, jordfauna og jordsmonn i et N‐sensitivt terrestrisk økosystem

The use of amines in CO₂ capture will lead to the release of amines into the air. Such emissions have the potential to increase the deposition of nitrogen on Norwegian nature, which can contribute to eutrophication (fertilization) and acidification of sensitive ecosystems. The project will investigate whether amine emissions from CO₂ purification technology over time can affect vegetation, soil and soil fauna on Atlantic precipitation bogs. This habitat type is considered one of the most sensitive to nitrogen deposition along the Norwegian coast.

The project is a continuation of CLIMIT project 199874 – Amine Emissions during Carbon Capture, Phase II, Experimental study (ExSIRA), where risks of emissions of amines from CO₂ capture plants were assessed (http://exsira.nilu.no/language/en -US / ExpectedResults.aspx; http://www.climit.no/no/Sider/Full-kontroll-ved-aminbasert-anlegg-for-CO₂-fangst.aspx).

The project is carried out as an experimental irrigation experiment of bogs with different amines and different amine doses at Smøla in Møre og Romsdal. The project is set up as a monitoring study with annual additions of amines and analyzes of vegetation, soil water and soil fauna in permanently marked analysis surfaces, where the development of methodology for monitoring ecosystem effects is emphasized. The results from the project will provide important knowledge about amine dose-response conditions, which can contribute to an environmentally friendly use of amines in CO₂ capture. The project is carried out by NINA in collaboration with NMBU.