The environmental surveillance of the Risø environment was continued in January-June 2018. The mean concentrations in air were: 0.37±0.27 μBq m–3 of 137Cs, 4.00±1.59 mBq m–3 of 7Be and 0.37±0.26 mBq m–3 of 210Pb (±1 S.D.). The depositions by precipitation at Risø in the first half of 2018 were: 0.045±0.007 Bq m–2 of 137Cs, 316±32 Bq m–2 of 7Be, 28.4±2.6 Bq m–2 of 210Pb and <0.9 kBq m–2 of 3H. The average background dose rate (TLD) at Risø (Zone I) was measured as 59 nSv h–1 compared with 55 ± 3 nSv h–1 (±1 S.D.) in the four zones around Risø.
|Number of pages||23|
|Publication status||Published - 2018|