Groundwater, surface water and sediment survey in Kolari and Ranua

Transkriptio

1 Geological Survey of Finland Northern Finland Office Report S41/2008/69 Rovaniemi S41/2008/69 Public Groundwater, surface water and sediment survey in Kolari and Ranua Ulpu Väisänen, Pertti Turunen and Jukka Väänänen

2 GEOLOGICAL SURVEY OF FINLAND DOCUMENTATION PAGE Date Authors Ulpu Väisänen, Pertti Turunen and Jukka Väänänen Type of report Made to order Title of report Groundwater, surface water and sediment survey in Kolari and Ranua Commissioned by AREVA Resources Finland Oy Abstract The Geological Survey of Finland (GTK) investigated the quality of groundwater in springs in the areas of Kolari and Ranua. The research included sampling, analyses and reporting. Altogether 22 water samples were taken from the study areas, 19 samples from Kolari, 14 of them were taken from springs and 5 from brooks. Gamma spectrometry was used to select the most radioactive location at each sampling site. The water samples (3 pieces) from Ranua were taken from springs. Sediment samples (5 pieces) were also taken from Kolari. The samples of groundwater and sediments were analysed in the laboratories of Labtium Oy in Espoo and Kuopio. Measurements of radon and total alpha were made in the Radiation and Nuclear Safety Authority (STUK). Keywords Uranium, radiation, elements, groundwater, surface water, spring, brook, sediments Geographical area Kolari, Ranua Map sheet 2642, Other information Ordered by AREVA Resources Finland Oy. Order number Investigations have been carried out under the skeleton agreement dnro K129/53/2004 for year Report serial S41/2008/69 Total pages 19 pages, 5 appendices Language English Archive code Price Confidentiality : Public Unit and section Northern Finland Office, Land Use and Environment Project code Signature/name Signature/name

3 Contents Documentation page 1 INTRODUCTION Bedrock in the Rytijänkkä sampling site Quaternary deposits of the study areas 2 2 SAMPLING AND ANALYSES 2 3 GAMMA RADIATION MEASUREMENTS 5 4 RESULTS OF THE ANALYSES Water samples Sediment samples Gamma radiation 16 5 SUMMARY AND CONCLUSIONS 18 6 LITERATURE 18 7 APPENDICES 19

4 1 1 INTRODUCTION The Geological Survey of Finland investigated the quality of groundwater in springs of natural state and surface water in some brooks in the Kolari and in the Ranua areas. A few sediment samples were analysed as well from the Kolari study area. The client of this study is AREVA Resources Finland Oy. Sampling and analysing were carried out in October and November The analyses were made in Labtium Oy in Espoo (water samples) and in Kuopio (sediment samples). Radon concentrations and total contents of alpha active 234 U, 238 U, 226 Ra and 210 Po were measured in Säteilyturvakeskus (STUK, Radiation and Nuclear Safety Authority), Helsinki. 1.1 Bedrock in the Rytijänkkä sampling site The Rytijänkkä sampling site with its surroundings is situated in the Pasmajärvi map sheet area (2642) investigated by GTK in (Väänänen, 2002, 2004). There are no bedrock exposures near the Rytijänkkä sampling site. In a wider area bedrock is selectively exposed, and some granite exposures could be found. The bedrock of the Rytijänkkä sampling site, however, mainly consists of supracrustal rocks (Väänänen 1992, 2002). On the other hand geophysical maps prove that the Rytijänkkä is situated near a northwesterly trending fracture zone. Sampling of bedrock was connected with the drilling of Quaternary deposits during the investigations of radioactive radiation anomalies of the Rytijänkkä sampling site in According to the core logging (drill holes K/2642/92/R1- R5) and observations in a washed excavator pit (Fig. 1) the bedrock consists of banded biotite hornblende gneiss alternating with amphibolite. These rocks have been interpreted as volcanic intercalations (see Fig. 1) of migmatitic mica gneisses in the bedrock map of the Pasmajärvi area. In addition there exist regularly granite-pegmatite dykes cutting these rocks (Väänänen, 1992, 1998, 2002, 2004). The rock types don t solve the reason for enrichment of uranium, because the amount of U-bearing minerals apatite, epidote, titanite, zirkone and possible allanite is normal. Fractures may create opportunities for groundwater circulation and extractive effects. In any case, some enrichment process is needed to explain the source of radiation. Fig. 1. Rytijänkkä ( ). Banded amphibolite cutted with a granite dyke ( x = ; y = ).

5 2 1.2 Quaternary deposits of the study areas The Quaternary deposits in Kolari are mainly till and peat deposits. There are high hills in the study area and between the hills low-lying, paludified depressions. On the high hills there are some bedrock exposures, in general the hills are mostly covered with till deposits. The highest hill is Venevaara, m a.s.l (Fig. 2). Low-lying depressions are mostly m a.s.l. There is a narrow esker running across the study area from NW to SE, from Venejärvi to Rytijängäntievat, and further to Saarijärvi and Härkäjärvi. The study area is uninhabited wilds in its natural state. The Quaternary deposits in the study area of Ranua are also mostly till and peat deposits. The area is gently undulating, and the differences of height are at the most a few tens of metres. 2 SAMPLING AND ANALYSES Sampling of groundwater, surface water and sediments was carried out in the second and third weeks of October Altogether 22 groundwater and surface water samples and 5 sediment samples were collected (Figs 2 and 3). Field measurements - temperature, ph value and electrical conductivity - were done in the sampling sites. The quantity of 100 ml was taken from each sample for analysing elements (22 samples). These samples were filtered using Becton & Dickinson s disposable syringes (Plastipak 50 ml Luer-Lok, Sterile Syringe) and Schleicher & Schuell s disposable filters (FP 030/2, 0.45 μm) and acidified with 0.5 ml of 65 % suprapure nitric acid. The water samples were stored in cool boxes and a refregerator before bringing them for analyses to the laboratory of Labtium Oy in Espoo. All the water samples were analysed by a combination of ICP-MS (inductively coupled plasma mass spectrometry) and ICP-AES (inductively coupled plasma atom emission spectrometry) methods. Altogether 33 elements were analysed, including main cations Ca, Mg, Na and K. Sediment samples (organic) were taken from the Kolari study area: sampling sites 2 (Rytijänkkä, spring), 8 (Majavaoja, brook), 11 (Majavaoja, spring), 14 (Venevaara, brook) and 20 (Kivijupukka, brook). The samples were brought to the laboratory of Labtium Oy in Kuopio. The samples were dried using lyophilisation including pre-freezing, crushed with a cutting mill and sieved <2 mm fraction. Samples were leached with nitric acid and using microwave oven techinique (EPA Method 3051) and elements were analysed by a combination of ICP-MS and ICP-AES methods. The photos of the sampling sites 1-2, 4-15 and are presented in appendix 5. The photo of the site 16 is missing.

6 3 Fig. 2. Sampling sites in the Kolari study area.

7 Fig. 3. Sampling sites in the Ranua study area. 4

8 5 3 GAMMA RADIATION MEASUREMENTS Gamma radiation was measured with a Radiation Solutions RS-230 gamma spectrometer. The volume of the Bismuth Germanate crystal of the instrument is 103 cm 3 that makes it possible to measure the radioactivity of even poorly radioactive targets reliably. The unit can be used to map total radiation, it has an assay capability, and it can be used to measure 1024 channel gamma spectra. Assay capability produces the K content of the sample in per cent, and the eu and eth contents in parts per million. The measured data is stored into memory to wait for downloading to a computer for interpretation and examination. Total count measurement was used to find the most intensive radioactive spot in the sampling location. In practice only the water within the first 50 cm from the spring bank was available for checking and sampling. The sample was taken at the selected spot, and later the gamma spectrum was measured at the same spot. Spectrum collection time was 300 seconds. RS-230 was placed in a plastic basin (see fig. 4) to ensure that separate measurements were comparable. The data in column Total was calculated from the spectra. Table 1 summarizes the gamma radiation measurements. Table 1. Gammaspectrometric measurements at water sampling sites. Sample Location Sample x y Spec K eu eth Total Bg Id site [m] [m] [%] [ppm] [ppm] [cps] [cps] 1 Matomäki Drill hole B Matomäki Brook C Matomäki Brook Rytijänkkä Pond B Rytijänkkä Sample Rytijänkkä Spring Majavalantto Spring Majavapuro Brook Majavapuro Spring Majavapuro Brook Majavapuro Brook Majavapuro Spring Majavapuro Spring Majavapuro Spring B Majavapuro Spring Majavapuro Spring Venevaara Brook Venevaara Spring Venevaara Brook Venevaara Spring Kivijupukka Spring Kivijupukka Spring B Kivijupukka Spring Kivijupukka Brook Isokangas Spring Isokangas Spring B Isokangas Boulder Isokangas Spring

9 6 Notes 1. The water sample of 1 Matomäki was taken at 1B. The radiation level was very high but a water sample from the running water was not radioactive. 2. 2B was a water sample from the site 2. The sample was radioactive B was a radioactive spring on the way to the site. No spectrum B two radioactive holes ten meters from site B is a large (~1 ha) boulder field with high radioactivity. 6. The exact coordinates of 22, 22B, and 23 could not be measured. The listed coordinates have been estimated from map. 7. Bg means background count rate m from the sampling site. Fig. 4. Measuring gamma spectrum from a spring with gamma spectrometer RS-230BGO.

10 7 4 RESULTS OF THE ANALYSES 4.1 Water samples The water samples were acid or slightly acid and had considerably low electrical conductivities (Table 2). The ph values varied from 5.13 to 6.9, with an exception of ph value 7.7 in one spring (site 4). Electrical conductivities varied from 1.4 to 16.1 ms/m. The highest electrical conductivity was in the sampling site 4. Slightly acid ph values of waters are common in Finland, especially in paludified environment. The concentrations of elements were mostly very low, often lower than the assay limit, e.g. Ag, Be, Bi, Cd, Pb, Sb and Se. The concentrations of the other elements and heavy metals were also low. While comparing the concentrations of the water samples to the maximum limits of drinking water and recommendations for private wells, only one sample had too high iron concentration of 0.44 mg/l (Table 3, App. 2). In the Kolari study area uranium concentrations were quite high, they varied from μg/l to 46.4 μg/l. The highest concentration was in the sampling site 16 (a spring in Venevaara). Concentrations of thorium were mostly lower than the assay limit 0.01 μg/l. The maximum concentration was only 0.03 μg/l. Because thorium is practically a non-mobile metal, concentrations in water are extremely low in Finland. Stream waters and stream sediments were studied in the whole country in According to the investigation median of uranium concentrations of stream waters in the whole country is μg/l (Lahermo et al. 1996). Radon concentrations varied from 1.6 to 2100 Bq/L (Table 3, App. 1). Ten samples from the Kolari area had higher radon concentration than 1000 Bq/L, which is the recommendation for maximum content for drinking water in private wells. 16 of the samples in Kolari had higher radon concentration than 300 Bq/L, which is the maximum limit for drinking water in groundwater intake plants. In the Ranua study area uranium concentrations (3 samples) varied from <1 to 4.39 μg/l, and radon concentrations from 1,6 to 520 Bq/L. Thorium concentrations varied from <0.01 to 0.01 μg/l (Table 3). Uranium and radon concentrations are presented in figures 5-6 (Kolari) and 8-9 (Ranua). Total contents of alpha-active 234 U, 238 U, 226 Ra and 210 Po varied from 0.04 to 16 Bq/L. Sample 20 was problematic, because it had fainted and was not possible to be determined precisely from the spectrum. The estimation is about 0.8 Bq/L. The laboratory of STUK tries to determine it again, and the possible result will be available in two months (January-February 2009; the sample will not be invoiced). The results are presented in appendix 1.

11 8 Table 2. Water sampling sites and dates, location, and field measurements: temperature, ph value and electrical conductivity (EC). Sampling site/kolari Sampling date X coord. Y coord. Temp. 0 C ph EC ms/m Remarks 1 Matomäki, spring Water flowing from the bedrock 2 Rytijänkkä, spring Situated in mire; sediment sample with strong organic smell 4 Rytijänkkä, spring Small spring with high radiation 5 Majavalantto, spring Situated in mire 6 Majavaoja, spring Small spring 7 Majavaoja, spring Big spring 8 Majavaoja, brook Sediment sample 9 Majavaoja, brook Majavaoja, brook High radiation 11 Majavaoja, spring Big spring, sediment sample 12 Majavapuro, spring Big boiling spring 13 Majavapuro, spring Big spring 14 Venevaara, brook Sediment sample 15 Venevaara, spring Venevaara, spring Small spring in mire 17 Venevaara, spring Big spring 18 Kivijupukka, spring Good spring 19 Kivijupukka, spring Small good spring, no radiation 20 Kivijupukka, brook Sediment sample Sampling site/ranua 21 Isokangas, spring Big spring 22 Isokangas, spring Radiating block field above the spring 23 Isokangas, spring Good spring

12 9 Table 3. Concentrations, mean and median values of elements of the water samples (22 pieces). For the sake of comparison mean and median values of stream waters in the whole of Finland (N , Lahermo & al. 1996), and median in lakes in the whole of Finland (N , Tarvainen 1996) are presented as well. Sample As μg/l Co μg/l Cu μg/l Mo μg/l Ni μg/l Zn μg/l Fe mg/l Mn μg/l Th μg/l U μg/l S mg/l 1 < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < Mean Median Mean in streams, Finland Median in streams, Finland Sediment samples Rn Bq/L Uranium is a mobile element in oxidizing circumstances, on the other hand it is rather stable in reducing circumstances, usually prevailing in organic sediments. Thus uranium is a very suitable element for geochemical mapping based on organic sediments, e.g. in lakes and streams. According Tenhola (1988) sedimentation is more stable in small lakes than in big lakes, because winds may disturb the upper part of the sediment in big lakes, favoring solubility of uranium

13 10 from the sediment to water. The same situation could be in brooks and streams with powerful current compared to those with minor current or almost stagnant water. In the Kolari study area U concentrations in organic sediments varied from 32.8 to 2010 mg/kg (Table 4, App. 3). The concentrations are high compared to the mean value of lake sediments in the whole of Finland, it is after Tenhola (1988) and Mäkinen & Kauppila (2006) 6.2 mg/kg. S concentrations were also quite high. Samples 11 and 20 had high Fe concentrations, samples 8 and 11 rather high Ni concentrations, and sample 11 had anomalously high Cu concentration. The concentrations of Mg, Pb and Zn were smaller than mean values in Finland. Table 4. Element concentrations of the organic sediment samples (mg/kg) in the Kolari study area, and median of the sediment samples in the lakes, in the whole of Finland. Number of the sample is equivalent with the water sample, taken in the same place. Sample As Co Cu Fe Mg Mo Ni Pb S Th U Zn Mean in Finland

14 11 Fig. 5. Uranium concentrations of the water samples in the Kolari study area.

15 12 Fig. 6. Radon concentrations of the water samples in the Kolari study area.

16 13 Fig. 7. Uranium concentrations of the stream sediments in the Kolari study area.

17 Fig. 8. Uranium concentrations of the water samples in the Ranua study area. 14

18 Fig. 9. Radon concentrations of the water samples in the Ranua study area. 15

19 Gamma radiation The following table shows the main parameters of gamma spectrometry and the corresponding laboratory analysis results. Table 5. Gamma spectrometry and laboratory analysis results from water samples. Gamma spectrometry Laboratory analyses 222 Rn Sample K eu eth Total K U Th Id [%] [ppm] [ppm] [Bq] [mg/l] [μg/l] [μg/l] [Bq/l] < < < < < < < < < < < < < < < When comparing uranium and thorium gamma assay results to laboratory analysis results one has to note that the two methods are based on quite different principles. For assay results to be true, secular equilibrium must exist between the members of the uranium decay series, and likewise with thorium. For the thorium decay series it takes only 50 years to reach the secular equilibrium, but for uranium it takes a million years. Waters, especially surface waters rich in oxygen, do not form favourable conditions for reaching the equilibrium. Water may contain dissolved uranium without being radioactive, and radioactivity does not necessarily guarantee the existence of uranium. So it is not sensible to compare the two uranium (and the two thorium) contents in table 5 to each other. There are differences between the two potassium contents, too. The laboratory analysis gives the potassium content in parts per million, and gamma assay in per cent. If the real potassium content is at this low level, there should be no counts in the K window of the gamma spectrometer. Due to statistical variations and other reasons there are always counts in the K window, and they are interpreted as parts of per cent. Probably the variation in the K column reflects the potassium variation in the bottom and in the banks of the springs, and not in the water.

20 17 There is one more problem worth to be aware of. The RS-230 spectrometer had problems with spectrum stabilization. From the graphs in appendix 4 one can see that the blue K window, red U window, and green Th window are not always symmetrically around the three spectral peaks. The sums of the counts in the windows are transformed to K, U and Th contents of the samples, and the results will inevitably be in error. At three sites (14, 22, and 23) stabilization could not be reached at all Gamma radiation (cps) Rn content (cps/l) Fig. 10. Total gamma count vs. radon content at the sample sites. Total gamma counts and the 222 Rn content of the water samples are closely related and are compared in the xy plot in figure 10. All the springs and brooks, except 1, cluster along a line, or near it. The large springs as 2, 5, 12, 13, 17, 18 and 23 the relationship between total count and radon content is almost perfectly linear. If the spring is small and shallow, the amount of water differs from the half space approximation. Most of the anomalous points are from a dense spring cluster at Majavapuro. There is one striking exception visible in Matomäki, sampling site 1 (App. 4 and 5). Gamma radiation at the site was very high, but a water sample was not notably radioactive, and radon content was only moderate. The spectrum in appendix 4 shows a well developed red U peak. The spectrum does not differ from other spectra that contain Rn and U. The reason of radioactivity has remained enigmatic.

21 18 5 SUMMARY AND CONCLUSIONS Almost all the water samples had high concentrations of uranium and radon. U concentrations were >3 μg/l in 15 samples and >10 μg/l in seven samples. Rn concentrations were quite high in 18 samples. Sampling sites with small concentrations of U and Rn may situate very near those with high concentrations of U and Rn. Sometimes Rn concentrations may be small and U concentrations high in the same sampling site, and vice versa, according to the groundwater research data of GTK. Concentrations of heavy metals and other elements in water samples were low, often lower than the assay limit. Concentrations of total alpha ( 234 U, 238 U, 226 Ra and 210 Po) in the water samples were Bq/L. In the Kolari study area U concentrations in organic sediments were high compared to the mean value 6.2 mg/kg in the whole of Finland (lake sediments). The samples had also rather high S concentrations. Two samples (11 and 20) had high Fe concentrations, and two samples (8 and 11) rather high Ni concentrations. The concentrations of Mg, Pb and Zn in sediment samples were smaller than mean values in Finland. According to measurements the radioactivity in the surroundings of springs came readily down with growing distance even when the ground was wet meaning that radon has not spread to the sediments and turf. Water level variation may cause uranium containing water to go into the sediments, but the presence of uranium in the sediments can not be confirmed by gamma spectrometry. It is not possible to specify the initial release point (or its distance) of uranium or radon by radiation measurement. The number of radon atoms decays to 0.4 per cent from its original value within a month. Depending on the flowing velocity of water its moving distance during this time varies from a few meters to a few hundreds of meters. Because radon is a gas, its atoms can move in water irrespective of water movement, for instance upwards in a fractured bedrock. As for uranium, it is not sensible to speak of the weakening of its flow in the course of time due to its very long half-life. Uranium dissolves in water rich in oxygen and precipitates with growing ph, but can later continue its movement in changed conditions. The location where uranium was originally dissolved can be far in the past and have nothing in common with the radon in the same pond. The assay results measured from springs and brooks are not to be taken seriously. The amounts of potassium, uranium and thorium are so small that their effects are not visible in gamma spectra. eu and eth are determined from the fingerprints of their radioactive daughters, and they do not necessarily have anything to do with their originators. Potassium values are caused by the earth materials around the sampling site. Still, it is justified to do gamma spectrometry from spring water as the presence of bismuth (or thallium) means that uranium (or thorium) exists not far from the site. 6 LITERATURE Johansson, P. & Kujansuu, R. (eds.) Pohjois-Suomen maaperä - Maaperäkarttojen 1: selitys. Quaternary deposits of Northern Finland - Explanation to the maps of Quaternary deposits. Geological Survey of Finland. 236 p. Lahermo, P., Väänänen, P., Tarvainen, T. & Salminen, R Suomen geokemian atlas, osa 3: Ympäristögeokemia purovedet ja sedimentit. The Geochemical Atlas of Finland, Part 3: Environmental Geochemistry Stream Waters and Sediments. Geological Survey of Finland. 149 p.

22 19 Mäkinen, J. & Kauppila, T Geochemical and paleolimnological studies in Nuasjärvi, Jormasjärvi and Kolmisoppi. Geological Survey of Finland, Report S/41/3433/2006/7. 37 p. Tarvainen, T Environmental Applications of Geochemical Databases in Finland: synopsis. Espoo: Geological Survey of Finland. 75 p. Tenhola, M Regional geochemical mapping based on lake sediments in eastern Finland (in Finnish with English summary). Geological Survey of Finland. Report Dnro K555/52/ p. Väänänen, J Kurtakko. Suomen geologinen kartta - Geological map of Finland 1: , kallioperäkartta - Pre-Quaternary Rocks, lehti - sheet Väänänen, J Kolarin ja Kurtakon kartta-alueiden kallioperä. Summary: Pre-Quaternary rocks of the Kolari and Kurtakko map-sheet areas. Suomen geologinen kartta - Geological Map of Finland 1: , Kallioperäkarttojen selitykset - Explanation to the maps of Pre-Quaternary rocks, lehdet sheets 2713 and p. Väänänen, J Pasmajärvi. Suomen geologinen kartta - Geological map of Finland 1: , kallioperäkartta - Pre-Quaternary Rocks, lehti - sheet Väänänen, J Sieppijärven ja Pasmajärven kartta-alueiden kallioperä. Summary: Pre- Quaternary rocks of the Sieppijärvi and Pasmajärvi map-sheet areas. Suomen geologinen kartta - Geological Map of Finland 1: , Kallioperäkarttojen selitykset - Explanation to the maps of Pre-Quaternary rocks, lehdet sheets 2713 and p. 7 APPENDICES 1. Results of radon and total alpha (STUK, Radiation and Nuclear Safety Authority) 2. Laboratory results of the water samples (Labtium Oy) 3. Laboratory results of the sediment samples (Labtium Oy) 4. Gamma spectra 5. Photos of sampling sites

23 ~ S TU K Tutkimus j a ymparistovalvonta N2008 GTK Riitta Pohjola PL ROVANIEMI VESINAYTTEIDEN RADONPITOISUUKSIEN MITTAUSTULOKSET Naytenumero Naytepaikka Paivamaara 222Rn-p itoisuus naytteenottopatvana RP-17 Venevaara, Kolari lahde ± 200 Bq/l RP-14 Venevaara, Kolari puro ± 200 Bq/l - RP- 15 Venevaara, Kolari lahde ± 160 Bq/l RP-16 Venevaara, Kolari lahde ± 90 Bq/l RP-18 Kivijupukk a Kolari liihde ± 300 Bq/l RP-19 Kivijupukka, Kolari liihde ,6 ± 0,3 Bq/l RP-20 Kivijupukka, Kolari puro ± 40 Bq/1 RP-1 Matomiiki, Ko1ari Iahde ± 90 Bq/1 Tulokset 1askettu niiytteenotto hetkeen. Apu1aistutkija '<i~ ( 2-, TarjGI~kkinen STUK SATE1LYT URVA KESKUS STRALSAK ERHETSCENTRAl EN RADIATION AND NUCLEAR SA FETY AUTHORITY OSOITEIADDRESS La.poeue HELSINKI POST1Q$OITE/POSTAL AD DRESS PUH (TEt. PlIP.O.Box 14 lo9' FIN-COBS1 HELSINKI,FINLAND FAX C

24 ~ S TUK Tutkimus ja ymparistov alvonta N 2008 GTK Riitta Pohjola PL ROVANIEMI VESINAYTTEIDEN RADONPITOISUUKSIEN MITTAUSTULOKSET Naytenumero Naytepalkka Paivamaara I, 2' R n-pitoisuus naytteeuottopaivana RP-6 Majavaoja, Kolari lahd e ± 140 Bq/I RP-9 Majavapuro, Kolari puro ± 280 Bq/I - RP-8 Majavapuro, Kolari puro ± 220 Bq /l RP-I O Majavaoja, Kolari puro ± 20 Bq/I RP-II Majavapuro, Kolari lahde ± 280 Bq/I. RP-7 Majavapuro, Kolari lahde ± 250 Bqll RP-13 Majavapuro, Kolari lahde ± 140 Bq/I RP-12 Majavapuro, Kol ari lahde ± 110 Bq/I RP-5 Maj avapuro, Kolari lahde ± 70 Bq/l RP-2 Rytijanka, Kolari lahde ± 150 B q/l RP-4 Rytijanka, Kolari lahde ± 230 Bq/I Tulokset laskettu naytteenotto hetkeen. Apulaistutkija I~c? Tarja Heikkinen STUK SATEl lvturvakeskus STRALSAK EAHETSCENTRA l EN RADIATION AND NUCLEAR SAFETY AU TH ORITY OSOITEIADDRESS Larppaue HELSINKI POSTIOSOITE/POSTAL ADDRESS PUH ITEL. PUP.a. Box 14 (09) FIN,OOB8' HELSINKI, FINLAND FAX (09)

25 ~ S TU K Tutkimus j a ymparistovalvonta N 2008 GTK Riitta Pohjola PL ROVANIEMI VESINAYTTEIDEN RADONPITOISUUKSIEN MITTAUSTULOKSET Niiytenumero Niiytepaikka Piiiviimiiiirii 222Rn-pitoisuus niiytteenottopiiiviinii (BqlI) RP 21 Isokangas, liihde ± 80 Bq/l RP 22 Isokangas, liihde ,6 ± 0,2 Bq/l RP 23 Isokangas, lahd e ± 26 Bq/l - Tulokset laskettu niiytteenotto hetkeen. Apu1aistutkija ~<S? Tat[alJeikkinen STUK. satellvturvakeskus STAALSAKERHETSCENTRA l EN RAD IAT IO N AND NU CLEA R SAFET Y AUTHORITY OSOITE/ADDRESS Latppeue 4 OQ880 HELSINKI POSTIOSQITEtPOSTAL ADDRESS PUH!Tf:l PL/PO.Box 14 W9l FiN-OOB81 HELSINKI, FINLAND FAX (09) <

26 ~ S TUK Tutkimus ja ymparistovalvonta IVV2008 GTK Riitt a Pohjola PL ROVANIEMl VESI NAYTTEIDEN RADONPITOISUUKSIEN MITTAUST ULOKSET TILAAJA- J A NAYTETIEDOT Tilaaja: Naytepaikka: Naytteenottopaiva: Saapumispaiva: Naytenumero: Riitta Pohj ola Isokangas, lahde ,19653,19654 Tilaaj an viite 222Rn_pitoisuus Pltkalkaiset alfa-aktiiviset aincet:. na ytteenottopalvana (U-234, U-238, Ra-22 6 ja Po-2! 0 yhteismaara) RP ± 80 Bq/l 0,04 ± 0,02 Bq/l RP-22 1,6 ± 0,2 Bq/l 0,35 ± 0,11 Bq/l RP ± 26 Bqll 0,04 ± 0,02 Bq/l Tulokset laskettu naytteenotto hetkeen. ~n' - _"'r------:, '.- \ C' ('-,,--C c ) _. Apulaistutkija Tarja eikkinen STUK sateil VTURVAKESKUS STR AlS AKE RHETSCENTR AlEN RADIATION AND NUCLEAR SAFE TY AUT HOR ITY OSOi P:/AOI~Hr.SS POST : G:;(ll ~ j::'?ost.o,'_ AOORfS.: t-'uhjf!:l i'. wo Box ;J\ [:;:'/ 15!: 8~ ;I N-:lr:&fJll, ' l~ : N.<., I~f J\n' t l!"i!-l "J 'J::tl;; :~I I';' ; fl.:";~,'.rs,:'~ 1 1:~

27 ~ S TUK Tutkimus ja ymparistovalvonta iiN2008 GTK Riitta Pohjola PL ROVANIEMI VESINAYTTEIDEN KOKONAISALFAPITOIS UUKSIEN MITTAUSTULOKSET Naytenumero Nayt epaik ka Paivamaara Pitkaik aiset alfa-aktiiviset aineet: (U-234, U-238, Ra-226 ja Po-210 vhteismaara) RP-6 Majavaoja, Ko lari lahde ,11 ± 0,04 Bq/I RP-9 Majavapuro, Kolari puro ,26 ± 0,08 Bq/I RP-8 Majavapuro, Kolari puro ,44 ± 0,13 Bq/I RP-lO Majavaoja, Kolari puro ,19 ± 0,06 Bq/I RP- ll Majavapuro, Kolari liihde ,83 ± 0,25 Bq/I RP-7 Majavapuro, Kolari liihde ,26 ± 0,08 Bq/l RP-13 Majavapuro, Kolari liihde ,19 ± 0,06 Bq/l RP-12 Majavapuro, Kolari lahde ,60 ± 0,18 Bq/I RP-5 Majavapuro, Kolari liihde ,68 ± 0,20 Bq/I RP-2 Rytijanka, Kolari liihde ,82 ± 0,25 Bq/I RP-4 Rytijanka, Kolari lahde ,22 ± 0,37 Bq/I Tulokset laskettu naytteenotto hetkeen. Apulaistutkija ~- _)~ cs::=? T a rj a~~ kk i nen STUK. SA TEILYTURVAKESKUS STAAlSAK EAHETSC ENTRAl EN RADIATION AND NUCLEAR SAFETY AU THOR ITV OSOITE/ADDRESS La.ppane HElSINKI POSTIOSQITE/POSTAL ADDRESS PUHJTEL PL/PO_Box ) FIN-OOBS1 HElSINKI, FINLAND ~3S f AX 109}

28 ~ S TUK Tutkimus ja ymparistovalvonta iiIV2008 GTK Riitta Pohjola PL ROVANlEMI VESINAYTTEIDEN KOKONAISALFAPITOISUUKSIEN MITTAUSTULOKSET Naytenumero Nliytepaikka Paivlimlilirli Pitkliikliiset alfa-aktiiviset aineet: (U-234, U-238, Ra-226 ja Po-210 yhteismaara) RP-17 Venevaara, Kolari lahde ,44 ± 0,14 Bqll RP-14 Venevaara, Kolari puro ,7 ± 0,5 Bq/I - RP-15 Venevaara, Kolari lahde ,1 ± 2,4 Bqll RP-16 Venevaara, Kolari lahde ±5Bq/1 RP-18 Kivijupukka Kolari lahde ,24 ± 0,08 Bqll RP-19 Kivijupukka, Kolari lahde ,24 ± 0,08 Bq/l RP-l Matom aki, Kolari lahde ,67 ± 0,20 Bq/l Tulokset laskettu naytteenotto hetke en. Apulaistutkija ~~ C? T~:~eikkinen STUK SATEI lvturvake SKUS STA AlSAKERHETSCENTR AlEN RADIATION AND NUCLEAR SAF ET Y AUTHORITY OSOITE/ADDAESS Lalppatle HELSINKI POSTIOSOlTE/POSTALADDRESS PUP.O Box 14 FIN OO88 1 HELSINKI. FINLAND PU H./TEl ( FAX lo9)

29 Appendix 2 GTK PSY Maankäyttö ja ympäristö VA :43:47 Espoo Pohjola Riitta PL Rovaniemi FINLAND ANALYYSITULOKSIA TILAUSNUMERO: VIITE: VA502Pohjola NÄYTTEITÄ: 22 MENETELMÄKOODI NÄYTTEITÄ MÄÄRITYKSIÄ + 139M P Labtium Oy Hanna Kahelin Laboratoriopäällikkö Labtium Oy PL ESPOO Puh Fax Kansilehti /4

30 Labtium Oy MENETELMÄKUVAUKSET JA HUOMAUTUKSET Tilausnumero: Raportointipäivä: :43:47 TULOS PÄTEE VAIN TESTATUILLE NÄYTTEILLE. TESTAUSSELOSTEEN SAA KOPIOIDA VAIN KOKONAAN. TULOKSET VALMISTUNEET: VAIN NE TESTIMENETELMÄT, JOISSA TÄSSÄ SELOSTEESSA ON MERKINTÄ + MENETELMÄKOODIN EDESSÄ, KUULUVAT AKKREDITOINNIN PIIRIIN M Monialkuainemääritys ICP-MS-tekniikalla + 139P Monialkuainemääritys ICP-AES-tekniikalla Info /4

31 Labtium Oy Laboratorion Tilaajan Ag Al As B Ba Be Bi Cd Co Cr Cu K Li Mn Mo Ni P näytetunnus näytetunnus µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l mg/l µg/l µg/l µg/l µg/l µg/l + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M L RP00001 < < <0.1 <0.02 < < L RP00002 < <0.1 <0.02 < < L RP00004 <0.01 <1 < <0.1 < < L RP00005 < <0.1 <0.02 < L RP00006 < < <0.1 <0.02 < L RP00007 < <0.1 <0.02 < L RP00008 < <0.1 <0.02 < L RP00009 < < <0.1 <0.02 < L RP00010 < <0.1 <0.02 < L RP00011 <0.01 <1 < <0.1 <0.02 < L RP00012 < <0.1 <0.02 < L RP00013 < <0.1 <0.02 < L RP00014 < <0.1 <0.02 < L RP00015 < <0.1 <0.02 < < L RP00016 < <0.1 <0.02 < < L RP00017 < < <0.1 <0.02 < L RP00018 < <0.1 <0.02 < L RP00019 < <0.1 <0.02 < L RP00020 < <0.1 <0.02 < L RP00021 < < <0.1 < L RP00022 < <0.1 < L RP00023 < < <0.1 <0.02 < <0.2 < < Tulokset /4

32 Labtium Oy Laboratorion näytetunnus L L L L L L L L L L L L L L L L L L L L L L Tilaajan näytetunnus 2008RP RP RP RP RP RP RP RP RP RP RP RP RP RP RP RP RP RP RP RP RP RP00023 Pb Rb Sb Se Sr Th Tl U V Zn Ca Fe Mg Na Si S µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l mg/l mg/l mg/l mg/l mg/l mg/l + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139P + 139P + 139P + 139P + 139P + 139P < <0.02 < < < < <0.02 < <0.01 < < <0.02 < < < < <0.02 < < < <0.02 < < <0.02 < < <0.02 < < <0.02 < < <0.02 < < <0.02 < <0.01 < < <0.02 < < < <0.02 < <0.01 < < < <0.02 < <0.01 < < <0.02 < <0.01 < < <0.02 < <0.01 < <0.02 < < <0.02 < <0.01 < < < <0.02 < < <0.02 < < < < <0.02 < < Tulokset /4

33 Appendix 3 GTK PSY Maankäyttö ja ympäristö VA :06:01 Kuopio Pohjola Riitta PL Rovaniemi FINLAND ANALYYSITULOKSIA TILAUSNUMERO: VIITE: va502 Pohjola Riitta PROJEKTI/HANKE: VASTUUALUE: 502 NÄYTETYYPPI: Org. Sedimentti NÄYTTEITÄ: 5 MENETELMÄKOODI NÄYTTEITÄ M Pp 5 Labtium Oy Lea Hämäläinen Laboratoriopäällikkö Labtium Oy Labtium Oy PL 57 PL ESPOO KUOPIO Puh Puh Fax Fax Kansilehti /8

34 Labtium Oy MENETELMÄKUVAUKSET JA HUOMAUTUKSET Tilausnumero: Raportointipäivä: :06:01 TULOS PÄTEE VAIN TESTATUILLE NÄYTTEILLE. TESTAUSSELOSTEEN SAA KOPIOIDA VAIN KOKONAAN. TULOKSET VALMISTUNEET: VAIN NE TESTIMENETELMÄT, JOISSA TÄSSÄ SELOSTEESSA ON MERKINTÄ + MENETELMÄKOODIN EDESSÄ, KUULUVAT AKKREDITOINNIN PIIRIIN. 13 Näytteen kuivaus kylmäkuivaustekniikalla 26 Mineraalisen näytteen seulonta <2mm fraktioon 503 Typpihappoliuotus mikroaaltouunissa, EPA M Monialkuainemääritys ICP-MS-tekniikalla + 503Pp Monialkuainemääritys ICP-AES-tekniikalla Info /8

35 Labtium Oy Laboratorion Tilaajan As B Be Bi Cd Ga In La Rb Sb Sc Se Th U W Y Yb näytetunnus näytetunnus mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg + 503M + 503M + 503M + 503M + 503M + 503M + 503M + 503M + 503M + 503M + 503M + 503M + 503M + 503M + 503M + 503M + 503M L RP < < < < L U 2008RP < < < < L RP < <0.5 < < < < L RP < < < < < L RP <0.5 < < < < L RP < <0.5 < < < < Tulokset /8

36 Labtium Oy Laboratorion näytetunnus L L U L L L L Tilaajan näytetunnus 2008RP RP RP RP RP RP00020 Al Ba Ca Co Cr Cu Fe K Li Mg Mn Mo Na Ni P Pb mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg + 503Pp + 503Pp + 503Pp + 503Pp + 503Pp + 503Pp + 503Pp + 503Pp + 503Pp + 503Pp + 503Pp + 503Pp + 503Pp + 503Pp + 503Pp + 503Pp < Tulokset /8

37 Labtium Oy Laboratorion näytetunnus L L U L L L L Tilaajan näytetunnus 2008RP RP RP RP RP RP00020 S Sr Ti V Zn mg/kg mg/kg mg/kg mg/kg mg/kg + 503Pp + 503Pp + 503Pp + 503Pp + 503Pp Tulokset /8

38 Labtium Oy Laadunvalvonta- As B Be Bi Cd Ga In La Rb Sb Sc Se Th U W Y Yb näytteen mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg tunnus Filler 503M-K 503M-K 503M-K 503M-K 503M-K 503M-K 503M-K 503M-K 503M-K 503M-K 503M-K 503M-K 503M-K 503M-K 503M-K 503M-K 503M-K QCSOKEA QCWQB QCSOKEA <0.05 <1 <0.04 <0.1 <0.05 <0.007 < <0.02 <0.1 < <1 <0.003 <0.002 QCWQB < Laadunvalvontatulokset /8

39 Labtium Oy Laadunvalvontanäytteen tunnus Filler QCSOKEA QCWQB1 QCSOKEA QCWQB1 Al Ba Ca Co Cr Cu Fe K Li Mg Mn Mo Na Ni P Pb mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg 503Pp-K 503Pp-K 503Pp-K 503Pp-K 503Pp-K 503Pp-K 503Pp-K 503Pp-K 503Pp-K 503Pp-K 503Pp-K 503Pp-K 503Pp-K 503Pp-K 503Pp-K 503Pp-K 24.6 <1 <50 <1 < <100 <0.2 < <3 <50 <2 <50 < < Laadunvalvontatulokset /8

40 Labtium Oy Laadunvalvontanäytteen tunnus Filler QCSOKEA QCWQB1 QCSOKEA QCWQB1 S Sr Ti V Zn mg/kg mg/kg mg/kg mg/kg mg/kg 503Pp-K 503Pp-K 503Pp-K 503Pp-K 503Pp-K <50 <1 <2 < Laadunvalvontatulokset /8

41 Appendix Matomäki 10 1 counts per second Channel 2 Rytijänkkä counts per second Channel

42 Appendix 4 4 Rytijänkkä counts per second Channel Majavalantto 10 1 counts per second Channel

43 Appendix Majavapuro 10 0 counts per second Channel 7 Majavapuro counts per second Channel

44 Appendix Majavapuro 10 1 counts per second Channel Majavapuro 10 1 counts per second Channel

45 Appendix Majavapuro 10 1 counts per second Channel 11 Majavapuro counts per second Channel

46 Appendix Majavapuro 10 1 counts per second Channel 13 Majavapuro counts per second Channel

47 Appendix Venevaara 10 1 counts per second Channel Venevaara 10 1 counts per second Channel

48 Appendix Venevaara 10 1 counts per second Channel Venevaara 10 1 counts per second Channel

49 Appendix Venevaara 10 1 counts per second Channel 19 Kivijupukka counts per second Channel

50 Appendix 4 20 Kivijupukka counts per second Channel Isokangas 10 0 counts per second Channel

51 Appendix Isokangas 10 1 counts per second Channel Isokangas 10 0 counts per second Channel

52 Appendix 5 1 Matomäki 2 Rytijänkkä

53 Appendix 5 4 Rytijänkkä 5 Majavalantto

54 Appendix 5 6 Majavapuro R 7 Majavapuro

55 Appendix 5 8 Majavapuro 9 Majavapuro

56 Appendix 5 10 Majavapuro 11 Majavapuro

57 Appendix 5 12 Majavapuro 13 Majavapuro

58 Appendix 5 14 Venevaara 15 Venevaara

59 Appendix 5 17 Venevaara 18 Venevaara

60 Appendix 5 19 Kivijupukka 20 Kivijupukka

61 Appendix 5 21 Isokangas 22 Isokangas

62 23 Isokangas Appendix 5