@book{3fc0caea1c344bfdaea3862e3fbe8306,
title = "Radioactivity in the Ris{\o} District January-June 2015",
abstract = "The environmental surveillance of the Ris{\o} environment was continued in January-June 2015. The mean concentrations in air were: 0.23±0.18 μBq m–3 of 137Cs, 2.19±0.91 μBq m–3 of 7Be and 0.13±0.05 μBq m–3 of 210Pb (±1 S.D.). The depositions by precipitation at Ris{\o} in the first half of 2015 were: 0.054±0.015 Bq m–2 of 137Cs, 433±43 Bq m–2 of 7Be, 22.5±4.5 Bq m–2 of 210Pb and < 0.5 kBq m–2 of 3H. The average background dose rate (TLD) at Ris{\o} (Zone I) was measured as 63 nSv h–1 compared with 56 ± 3 nSv h–1 (±1 S.D.) in the four zones around Ris{\o}.",
keywords = "DTU-Nutech-R-0012(EN), DTU-Nutech-R-0012, DTU-Nutech-R-12, DTU-Nutech-12(EN), DTU-Nutech-12",
author = "Nielsen, {Sven Poul} and Andersson, {Kasper Grann} and Arne Miller",
year = "2015",
language = "English",
series = "DTU-Nutech-R",
publisher = "DTU Nutech",
number = "12(EN)",
}