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Areas requiring radon measurements in workplaces

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Areas requiring radon measurements in workplaces

High concentrations of radon at workplaces can be predicted based on earlier radon measurements made in apartments and workplaces.

According to section 155 of the Radiation Act, radon concentration at workplaces must be determined in areas where more than 10 per cent of the radon concentrations measured earlier in apartments, other living areas and workplaces exceeds the value of 300 Bq/m³. Attached is a list of all such areas.

The list includes those areas in which ten or more measurements have been made. Notice that there are both municipalities and separate postal code areas where radon measurements at workplaces are obligatory.

Check if your workplace is either on the list of municipalities or postcodes below.

​​​​​​​Municipalities where radon measurement in workplace is obligatory

Municipality Buildings
measured		 Average
Bq/m3		 Proportion (%)
exceeding
300 Bq/m³
Akaa 592 194 15,7
Asikkala 807 312 24,8
Askola 570 491 37,7
Enontekiö 146 258 22,6
Espoo 5739 159 12,2
Forssa 422 181 13,5
Hamina 1322 273 26,9
Hattula 593 230 19,9
Hausjärvi 862 282 29,2
Heinola 1364 269 26,6
Helsinki 4432 155 11,2
Hollola 3469 456 46,0
Huittinen 175 156 10,9
Humppila 190 371 27,9
Hyvinkää 2406 267 21,7
Hämeenlinna 3321 235 22,4
Iitti 467 294 25,9
Imatra 940 231 20,6
Janakkala 1903 340 26,1
Joensuu 1862 191 12,4
Jokioinen 261 203 17,2
Joutsa 298 219 16,8
Jyväskylä 2561 165 10,8
Järvenpää 1953 242 25,9
Kajaani 933 387 24,9
Kangasala 2028 283 25,7
Karkkila 344 164 12,2
Kauniainen 593 208 22,1
Kemijärvi 260 226 16,2
Kerava 829 198 18,5
Kirkkonummi 1883 172 13,0
Kitee 557 245 19,4
Kivijärvi 49 238 12,2
Kolari 167 308 25,7
Kotka 3264 332 40,5
Kouvola 5227 309 34,0
Kuhmoinen 218 265 27,5
Kärkölä 612 380 42,0
Lahti 5655 442 39,3
Laitila 135 150 10,4
Lapinjärvi 376 419 41,0
Lappeenranta 2420 199 16,2
Laukaa 577 185 13,0
Lemi 174 260 26,4
Lempäälä 1191 271 28,1
Liperi 518 186 11,2
Lohja 1209 164 11,0
Loppi 775 281 22,7
Loviisa 2288 508 46,3
Luhanka 61 229 23,0
Luumäki 472 322 41,3
Maarianhamina 168 176 14,9
Miehikkälä 167 306 32,3
Myrskylä 257 430 39,3
Mäntsälä 1061 307 30,4
Mäntyharju 315 175 12,7
Nokia 1545 250 26,5
Nurmes 191 218 13,6
Nurmijärvi 1461 212 16,0
Orimattila 1454 355 30,3
Orivesi 439 155 11,6
Outokumpu 237 189 12,7
Padasjoki 258 278 26,4
Parikkala 312 215 22,1
Parkano 136 143 10,3
Pirkkala 1119 197 20,7
Pornainen 470 246 23,4
Porvoo 2421 265 23,2
Pukkila 298 369 33,9
Punkalaidun 65 146 10,8
Pyhtää 566 454 43,6
Pyhäjärvi 106 187 14,2
Pälkäne 467 245 21,8
Riihimäki 1227 236 21,8
Ruokolahti 483 245 20,3
Ruovesi 295 364 18,3
Saarijärvi 341 175 11,4
Saltvik 24 146 29,2
Sastamala 620 161 11,1
Savitaipale 519 311 28,9
Sipoo 1165 169 13,6
Siuntio 237 171 11,0
Sodankylä 292 222 13,0
Somero 290 179 13,4
Suomussalmi 134 159 10,4
Sysmä 361 215 18,6
Taipalsaari 1020 469 48,4
Tammela 340 292 21,5
Tampere 6490 366 28,3
Tohmajärvi 227 230 14,5
Toivakka 93 162 14,0
Tuusula 1366 194 17,3
Utsjoki 50 148 12,0
Valkeakoski 691 213 17,7
Valtimo 129 227 15,5
Vantaa 4316 180 15,3
Vesilahti 207 154 11,6
Virolahti 229 282 31,0
Ylitornio 107 164 14,0
Ylöjärvi 2256 231 20,6
Ähtäri 61 161 13,1
Äänekoski 359 187 12,5

 

Postal code areas where radon measurement in workplace is obligatory

Postal code Post office Buildings
measured		 Average
Bq/m3		 Proportion
exceeding
300 Bq/m³
03790 Vihtijärvi 28 203 21,4
10120 Tähtelä 26 161 11,5
10160 Degerby 53 140 11,3
10330 Pinjainen 18 263 16,7
10360 Mustio 54 218 24,1
10420 Pohjankuru 58 161 13,8
10440 Bollsta 16 115 12,5
10570 Bromarv 17 260 29,4
19430 Pertunmaa 33 157 12,1
20460 Turku 36 134 11,1
21290 Rusko 99 169 10,1
21540 Preitilä 19 157 15,8
21870 Riihikoski 36 155 11,1
23100 Mynämäki 249 177 11,2
23200 Vinkkilä 28 144 10,7
23500 Uusikaupunki 76 195 11,8
23600 Kalanti 18 179 22,2
25320 Raatala 11 155 18,2
25410 Suomusjärvi 20 309 20,0
29340 Kullaa 17 146 11,8
29600 Noormarkku 89 127 12,4
31720 Urjalankylä 19 142 10,5
31760 Urjala  50 180 12,0
32270 Metsämaa 23 169 17,4
32410 Niinijoki 15 159 13,3
35540 Juupajoki 16 174 12,5
38950 Honkajoki 12 131 16,7
39130 Sasi 41 193 19,5
39170 Jumesniemi 10 252 20,0
40930 Kinkomaa 43 173 14,0
41230 Uurainen 23 197 13,0
41290 Kangashäkki 31 177 12,9
41490 Niemisjärvi 33 162 18,2
42220 Kaipola 23 141 13,0
44880 Muurasjärvi 11 129 18,2
50100 Mikkeli 138 175 10,1
52230 Hurissalo 10 160 20,0
57210 Savonlinna 18 156 11,1
60320 Seinäjoki 26 386 19,2
60510 Hyllykallio 41 126 12,2
66300 Jurva 55 141 10,9
72400 Pielavesi 29 127 13,8
77570 Jäppilä 19 121 10,5
78200 Varkaus 13 150 15,4
80130 Joensuu 23 681 21,7
80510 Onttola 117 154 10,3
80780 Kontioniemi 66 236 25,8
81235 Lehtoi 50 211 16,0
82830 Haukivaara 11 214 18,2
85160 Rautio 18 153 16,7
96400 Rovaniemi 39 240 17,9
96500 Rovaniemi 20 151 20,0
96900 Saarenkylä 65 276 15,4
Updated 25.11.2021

Contact

Contact

  • Kojo Katja
    Senior Inspector / LUV tel. +358 975 988 472