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Directory entires that have specified Arctic, Circumpolar as one of the geographic regions for the project/activity and are included in the AMAP, ENVINET, SAON and SEARCH directories. Note that the list of regions is not hierarchical, and there is no relation between regions (e.g. a record tagged with Nunavut may not be tagged with Canada). To see the full list of regions, see the regions list. To browse the catalog based on the originating country (leady party), see the list of countries.
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National Monitoring Programme in Sweden. The purpose is to quantify deposition (mainly of sulphur and nitrogen), and to illustrate effects in the soil, for example possible acidification. The aim of the network is to describe the current situation, regional differences, trends over time, and the effects of acid deposition. The atmospheric deposition of sulphur and nitrogen are the main causes of current acidification of ecosystems. Acidification results in substantial pH reduction in soil, groundwater, lakes and water courses. Deposition is investigated as precipitation studies in open field areas (bulk precipitation) and by throughfall studies in nearby forest stands. For sulphur and chloride, throughfall monitoring is useful for determination of total deposition. In areas, or during periods with low sulphur deposition, internal circulation in vegetation might influence results from throughfall measurements significantly. For nitrogen and base cations (mainly potassium and manganese) canopy interaction is important. Air concentrations of sulphur and nitrogen dioxide, ammonia, and ozone are measured at some locations. The observations made are: (i) air chemistry (SO2, NO2, NH3, O3); (ii) soil water chemistry (pH, Alk, SO4-S, Cl, NO3-N, NH4-N, Ca, Mg, Na, K, Mn, Fe, ooAl, oAl, Al-tot, total organic carbon); (iii) deposition in open field (precipitation, H+, SO4-S, Cl, NO3-N, NH4-N, Ca, Mg, Na, K, Mn); (iv) deposition in forest (throughfall, H+, SO4-S, Cl, NO3-N, NH4-N, Ca, Mg, Na, K, Mn). For nitrogen and base cations (mainly potassium and manganese) canopy interaction is important. Soil solution chemistry in the forest stands is used as indicator of soil conditions.
This project is now part of the project: Acidifying and Eutrophifying Substances in Air and Precipitation
National Environmental Monitoring Programme. National Environmental Monitoring Programme. The PMK Network is part of the national network for deposition measurements. The aim is (i) a long-term monitoring of concentration and deposition of selected air transported compounds caused acidification and eutrophication in different parts of Sweden; (ii) to generate knowledge about long-term variation in the field deposition, (iii) to give the background data from low polluted areas for calculation of pollutants deposition in more polluted areas the monitoring of pollutants in air and precipitations are proceed. Ozon and air samples for analysis of sulphur and nitrogen compounds, HCl as well as basic metal ions (Na, K, Ca, Mg, are taken on a monthly basis in air and precipitation. Ozone, as well as sulphur and the nitrogen compound particles are measured in air, and sulphur and nitrogen compounds, base cations, pH and electro-conductivity in precipitation.
This project is now part of the project : Acidifying and Eutrophifying Substances in Air and Precipitation
National Environmental Monitoring in Sweden. The project is included in a European Monitoring and Evaluation Programme network (EMEP). The subprogram main task is to check if international agreements as UN Convention on Long range Trans-boundary Air Pollution (CLTRAP) is followed. The measurements follow up the Swedish national generational goals "Natural Acidification Only", "A Non-Toxic Environment" and "Clean Air". The network comprises 10 stations, out of which three are in north Sweden, the two one are in AMAP area. Air chemistry is monitored by diffusion samplers. The following compounds are measured: SO2, SO4, tot-NH4, tot-NO3, soot, NO2. Precipitation quality is monitored following measured compounds: SO4-S, NO-N, Cl, NH4-N, Ca, Mg, Na, K, pH, EC. Metals in air and precipitation are analysed only at one north station (Bredkälen), and include: As, Cd, Co, Cr, Cu, Mn, Ni, Pb, Zn, V, Hg, methyl-Hg.
National Environmental Monitoring in Sweden. The monitoring of persistent organic pollutants (POPs) in fish is performed in 110 lakes in Sweden and annual sampling is carried out in 32 lakes, of which 7 are located in or close to the AMAP area. Three fish species have been selected: Arctic char (Salvelinus alpinus), Northern pike (Esox lucius), and Perch (Perca fluviatilis). Fish are sampled, prepared, and stored in the Environmental Specimen Bank (ESB) at the Swedish Museum of Natural History (NRM). PCB, HCH, HCB, DDT, DDE, PFAS and PBDE are some of the POPs that are analysed.
LONG TERM: Determine the effects, at the individual and population level, of persistent organic pollutants (POPs) and their metabolites in the polar bear; determine trend of POPs in the Arctic marine environment using polar bear tissues as a biomonitor. SHORT TERM: a. Determine 10-year temporal trends of POPs in the Hudson Bay Sub-Arctic Ecosystem from 1990-1989 by analysis of archived polar bear biopsy samples, including changes in enantiomeric composition of -HCH and chlordane compounds and ratio of -HCH/-HCH (cross-referenced to separate proposal on HCHs). b. Determine if there is selective tissue distribution of the enantiomers of chiral contaminants in polar bears, which may influence target organ toxicity, by analysis of archived polar bear samples. c. Determine the endocrine disrupting effect of POPs on testosterone and PCB metabolite profiles by in vitro metabolism studies using polar bear liver microsomes. d. In collaboration with CWS P&N Region, the Norwegian Polar Institute and the Norwegian Veterinary Institute, determine the immunotoxic effects of PCBs and other organochlorines in polar bears throughout a gradient of exposure (Hudson Bay, low; Svalbard, high). e. Determine the effects of hydroxy-PCBs on circulating thyroid hormone and vitamin A concentrations.