Inventering av förorenad mark på LKAB's industriområden i Kiruna, Svappavaara och Malmberget
The county administration asked LKAB to make an inventory of possibly contaminated sites caused by their mining activity. The inventory should be performed according to the MIFO model, a method from SEPA which is used to assess a contaminated site. The first phase involves collection of information...
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| Format: | Other/Unknown Material |
| Language: | Swedish English |
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SLU/Div. of Soil Chemistry and Pedology
2005
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| Online Access: | https://stud.epsilon.slu.se/600/ |
| Summary: | The county administration asked LKAB to make an inventory of possibly contaminated sites caused by their mining activity. The inventory should be performed according to the MIFO model, a method from SEPA which is used to assess a contaminated site. The first phase involves collection of information through interviews and site inspections and in phase 2 a general survey with field sampling is conducted. LKAB started the work with the first phase of the survey during 2003. During this project the information collected in Phase 1 was evaluated and 16 of the sites were chosen to proceed to MIFO Phase 2 (six sites in Kiruna, and 5 sites respectively in Svappavaara and Malmberget). The sampling of these 16 sites was performed during week 27 2004. The planning and the sampling were done together with MRM in Luleå and the soil samples were sent to Analytica in Luleå for laboratory analysis. The sampling was primarily done with a one meter long screw drill, powered by GeoMaskin 75. This method was also used to drill holes for groundwater pipes. Other methods used were: moraine drill (powered by GeoMaskin 75), sampling pit dug by excavator and manual sampling on the soil surface with a spoon. The information from phase 1 was used to make individual sampling plans for each site. In order to design a sampling plan choices are made regarding: sampling pattern, number of samples, sampling method, etc. Two of the 16 sites could not be sampled according to the plan: The transformer place (object 8) and Present Refuelling place (object 14). The coarse top material at the transformer place could not be penetrated with the equipment at the site and too many wires in the ground made it impossible to take soil samples at the Present Refulling place. At iron ore mines it is mostly the activities around the mine such as workshops, refuelling places, junkyards etc. that causes most of the pollution and compared to sulphide mines there are relatively few heavy metals. The heavy metals found at the contaminated sites in this survey were ... |
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