The environmental surveillance of the Risø environment was continued in July - December 2011. The mean concentrations in air were: 0.25±0.19 μBq m^–3 of ¹³⁷Cs, 2.81±1.71 mBq m^–3 of ⁷Be and 0.23±0.18 mBq m^–3 of ²¹⁰Pb (±1 S.D.; N = 26). The depositions by precipitation at Risø in the second half of 2010 were: 0.102 Bq m^–2 of ¹³⁷Cs, 757 Bq m^–2 of ⁷Be, 75.1 Bq m^–2 of ²¹⁰Pb and < 0.8 kBq m^–2 of ³H. The average background dose rate (TLD) at Risø (Zone I) was 67 nSv h^–1 compared with 66 ± 14 nSv h^–1 (±1 S.D.; N = 3) in the four zones around Risø.