ASN Report 2018

Example of radiological monitoring of the environment around BNIs ENVIRONMENT MONITORED OR TYPE OF INSPECTION CATTENOM NPP (RESOLUTION 2014-DC-0415 OF 16 JANUARY 2014) AREVA PLANT AT LA HAGUE (ASN RESOLUTION 2015-DC-0535 OF 22 DECEMBER 2015) Air at ground level • 4 stations continuously sampling atmospheric dust on a fixed filter, with daily measurements of the total β  activity ( β G) - γ  spectrometry if β G > 2 mBq/m 3 - Monthly γ spectrometry on grouped filters per station • 1 continuous sampling station downwind of the prevailing winds, with weekly measurement of atmospheric 3 H • 5 stations continuously sampling atmospheric dust on a fixed filter, with daily measurements of the total α activity ( α G) and total β activity ( β G). - γ spectrometry if α G or β G > 1 mBq/m 3 - Monthly α (Pu) spectrometry on grouped filters per station • 5 continuous sampling stations for halogens on specific adsorbent with weekly γ spectrometry to measure iodines • 5 continuous sampling stations with weekly measurement of atmospheric 3 H • 5 continuous sampling stations with bi-monthly measurement of atmospheric 14 C • 5 continuous measurement stations for 85 Kr activity in the air Ambient γ radiation • Continuous measurement with recording: - 4 detectors at 1 km - 10 detectors on the site boundary - 4 detectors at 5 km • 5 detectors with continuous measurement and recording • 11 detectors with continuous measurement at the site fencing Rain • 1 continuous sampling station under the prevailing winds with bi-monthly – measurement of β G and 3 H • 2 continuous sampling stations including one under the prevailing winds with weekly measurement of α G, β G and 3 H - γ spectrometry if significant α G or β G Liquid discharge receiving environment • Sampling from the river upstream of the discharge point and in the goodmixing area for each discharge - Measurement of β G, potassium (K)* and 3 H • Continuous sampling in the river at the good mixing point - 3 Hmeasurement (average daily mixture) • Annual sampling in aquatic sediments, fauna and flora upstream and downstream of the discharge point with γ spectrometry, free 3 Hmeasurement, and, on fish, organically bound 14 C and 3 H • Periodic sampling from a stream and in the dam adjoining the site withmeasurements of β G, K, 3 H • Daily seawater samples from 2 points on the coast, with daily measurements ( γ spectrometry, 3 H) at one of these points and for each of the 2 points, α and γ spectrometry and β G, K, 3 H and 90 Sr measurements • Quarterly seawater samples at 3 points offshore with γ  spectrometry and β G, K, 3 Hmeasurements • Quarterly samples of beach sand, seaweed and limpets at 13 points with γ  spectrometry + 14 Cmeasurements and α spectrometry for the seaweed and limpets at 6 points • Sampling of fish, crustaceans, shellfish andmolluscs in 3 coastal zones of the Cotentin with α and γ spectrometry and 14 Cmeasurement • Quarterly sampling of offshore marine sediments at 8 points with α and γ spectrometry and 90 Sr measurement • Weekly to six-monthly samples of water from 19 streams around the site, with α G, β G, K and 3 Hmeasurements • Quarterly sampling of sediments from the 4main streams adjacent to the site, with γ and α spectrometry • Quarterly samples of aquatic plants in 3 streams in the vicinity of the site with γ spectrometry and 3 H measurement Groundwater • Monthly sampling at 4 points, bi-monthly at 1 point and quarterly at 4 points with β g, K and 3 Hmeasurement • 5 sampling points (monthly check) with α G, β G, K and 3 H measurement Water for consumption • Annual sampling of water intended for human consumption, with β g, K and 3 H measurements • Periodic sampling of water intended for human consumption at 15 points, with α G, β G, K and 3 H measurements Soil • 1 annual sample of topsoil with γ spectrometry • Quarterly samples at 7 points with γ spectrometry and  14 Cmeasurement Vegetation • 2 grass sampling points, including one under the prevailing winds, monthly γ  spectrometry and quarterly 14 C and C measurements • Annual campaign for the main agricultural crops, with γ  spectrometry, 3 H and 14 C measurements • Monthly grass sampling at 5 points and quarterly at 5 other points with γ  spectrometry and 3 H and 14 C measurements, - Annual spectrometry α each point • Annual campaign for the main agricultural crops, with α and γ spectrometry, 3 H, 14 C and 90 Sr measurements Milk • 2 sampling points, situated 0 to 10 km from the facility, including one under the prevailing winds, withmonthly γ  spectrometry, quarterly 14 Cmeasurement and annual 90 Sr and 3 Hmeasurement • 5 sampling points (monthly check) with γ  spectrometry, K, 3 H, 14 C and 90 Sr measurement α G = α total ; β G = β total * Measurements of total concentration of potassium and by spectrometry for 40K. Table 8 150  ASN report on the state of nuclear safety and radiation protection in France in 2018 03 – REGULATION OF NUCLEAR ACTIVITIES AND EXPOSURE TO IONISING RADIATION