Abstracts ASN Report 2019

³z ȸƺǕǣȒȇƏǼ ƳǣɮǣɀǣȒȇɀ ȵǼƏɵǣȇǕ Ə ǔȸȒȇɎ ٮ Ȓǔ ٮ ɀɎƏǕƺ ȸȒǼƺ ǣȇ Ɏǝƺ ȵȸƺɮƺȇɎǣȒȇ Ȓǔ Ɏǝƺ ȸƏƳȒȇ ȸǣɀǸ ǣȇ Ɏǝƺ ȸƺǕǣȒȇɀ Áǝƺ ɵƺƏȸ א ׎׏ ژח ɯƏɀ ȅƏȸǸƺƳ ƫɵ Ɏǝƺ ǣȅȵǼƺȅƺȇɎƏɎǣȒȇ Ȓǔ regulatory provisions aiming to better protect the public and workers against the radon risk (see point 3.2.2). ASN thus contributed, with the public administration ƳƺȵƏȸɎȅƺȇɎɀ ٫(ȸƺƏǼً «ƺǕǣȒȇƏǼ RƺƏǼɎǝ ǕƺȇƬɵ ٢ «³٣ً (ǣȸƺƬƬɎƺ٫ ƏȇƳ Ɏǝƺ ȵƏȸɎȇƺȸ ȒȸǕƏȇǣɀƏɎǣȒȇɀ ٢!ƺȸƺȅƏً trade associations, local authorities, etc.), to raising the awareness of elected officials, building trade professionals, employers, managers of buildings open to the public and the general public to these changes. …ȇ ׏ ژ hɖǼɵ א ׎ א ׎ً ƺƏƬǝ ƫɖǣǼƳǣȇǕ Ȓȵƺȇ ɎȒ Ɏǝƺ ȵɖƫǼǣƬ must be able to provide ASN with the reports on the radon measurements carried out in the building. In the Auvergne-Rhône-Alpes region, the Lyon division inspected the Departmental Council of the Puy de Dôme, which is responsible for state-run junior secondary schools ( collèges ), and the services of the Regional Council, which is responsible for state-run senior secondary schools ( lycées ). These inspections verified the way in which these authorities manage the radon risk in these schools. The findings of these inspections have led ASN to maintain inspections of regional authorities in 2020. In 2019, the Lyon division also inspected the Grands Thermes de la Bourboule , a thermal spa faced with a high radon concentration. The inspectors also inspected a penal institution following repeated reports from the employees. In 2020, the Lyon division plans measures to raise elected officials’ awareness of their obligations with regard to information and prevention. The inspections carried out in Bourgogne-Franche- !ȒȅɎƻ ǣȇ א ׎׏ ژח ǣȇ ȅƺƳǣƬƏǼ Ȓȸ ǣȇƳɖɀɎȸǣƏǼ ǔƏƬǣǼǣɎǣƺɀ ɀǣɎɖƏɎƺƳ in municipalities with a significant radon potential also provided the opportunity to explain the regulatory obligations of the managers of buildings open to the public and those of employers. Within the framework of the Franco-Swiss JURADBAT project, a website now offers the public, the regional authorities and building trade professionals general and regulatory information, practical and technical guidance sheets, interactive maps of radon measurements in Switzerland and Franche-Comté, as well as training modules. The Regional Council and the Urban Community of Besançon were also inspected. All the secondary schools have undergone initial screening which has been renewed at the required frequencies. The secondary schools presenting a radon concentration exceeding the reference level have been identified and corrective or remediation measures have been initiated. In some cases however, it is necessary to perform an expert assessment of the buildings to obtain appropriate work recommendations. In the Pays de la Loire region, where the département s ٢ƏȵƏȸɎ ǔȸȒȅ ³ƏȸɎǝƺ٣ ǝƏɮƺ ƫƺɎɯƺƺȇ ۏדה ƏȇƳ ז ׎ ۏ Ȓǔ Ɏǝƺǣȸ municipalities situated in zones of significant radon potential, the Nantes division organised jointly with the ARS, Dreal and Cerama, two “Radon mornings” ǣȇ ژ Ɏǝƺ xƏɵƺȇȇƺ département and in the municipality of Lion d’Angers (Maine-et-Loire département ). Some ז ׎ ژ ȸƺȵȸƺɀƺȇɎƏɎǣɮƺɀ Ȓǔ ǼȒƬƏǼ ƏɖɎǝȒȸǣɎǣƺɀً ɀƬǝȒȒǼɀً ǝƺƏǼɎǝƬƏȸƺ and social institutions, associations and design offices took part in each event. Both events presented the new regulatory obligations applicable in buildings open to the public, in the workplace and in private homes (informing house buyers and tenants) to encourage the local authorities to conduct campaigns to measure radon in private homes and to raise radon awareness in the general public. The Nantes division also funded several actions promoted by associations or Local Centres for Environmental Initiatives (CPIEs), notably campaigns of voluntary measurement of radon in homes and assisting people faced with high radon concentrations. ASN also carried out, jointly with the ARS or in its presence, inspections of the Regional Council and the Departmental Councils (Mayenne, Maine-et-Loire, Loire-Atlantique, Vendée) in order to verify the launching of the radon measurement campaigns in junior and senior secondary schools). Likewise, an inspection of the Departmental Council of Ille-et-Vilaine in Bretagne was also carried out with the ARS. These six inspections revealed considerable disparities in the integration of the new radon monitoring requirements in secondary schools. In the Grand Est region, in collaboration with the ARS and ATMO Grand Est (an approved air quality monitoring association), two information meetings for local elected ȒǔǔǣƬǣƏǼɀ ɯƺȸƺ ǝƺǼƳ Ȓȇ ׏ ژח hɖȇƺ ǣȇ «ȒɖǔǔƏƬǝ ٢ Əɀ «ٮ ǝǣȇ département ٣ ƏȇƳ Ȓȇ א ׎ ژ hɖȇƺ ǣȇ ȇƳǼƏɖ ٢RƏɖɎ «ٮ ǝǣȇ département ). The targeted municipalities are effectively situated on a granitic fault in the foothills of the Vosges, most of which are classified as significant radon potential zones. Alongside this, the alert given by the inhabitants of the former coal-mining municipality of Ottange (Moselle département ٣ ǣȇ א ׎׏ ژה ɯǣɎǝ ȸƺǕƏȸƳ ɎȒ Ə supposed abnormally high incidence of cancers in this municipality mobilised the State services, carrying on the work of 2018. Several meetings were thus coordinated by the Sub-Prefect of Thionville: an inter-service meeting Ȓȇ ژז hɖǼɵ ƏȇƳ Ə ȵɖƫǼǣƬ ȅƺƺɎǣȇǕ Ȓȇ א ׎ ژ ³ƺȵɎƺȅƫƺȸ א ׎׏ ח ِ At the end of the latter meeting, it was indicated that ȇƺƏȸǼɵ ۏדח Ȓǔ Ɏǝƺ ȅƺƏɀɖȸƺȅƺȇɎɀ ɎƏǸƺȇ ƳɖȸǣȇǕ Ɏǝƺ ɯǣȇɎƺȸ ƬƏȅȵƏǣǕȇ Ȓǔ א ׎׏ ژח Əȸƺ ƫƺǼȒɯ ב ׎׎ ژ ȷٖȅ 3 ژ ƏȇƳ ȇȒȇƺ ƺɴƬƺƺƳƺƳ ׏ً׎׎׎ ژ ȷٖȅ 3 . Another radon measurement campaign will be carried out in winter 2020. In Normandie, in collaboration with the State services, ASN also organised two information days on the radon risk intended for the mayors of the municipalities at ȸǣɀǸً ǝƺǼƳ Ȓȇ ׏׏ ژ hɖȇƺ ǣȇ àǣȸƺ ٢!ƏǼɮƏƳȒɀ département ) and ׏ ژא hɖȇƺ ǣȇ !ǝƺȸƫȒɖȸǕ …ٮ ƬɎƺɮǣǼǼƺ ٢xƏȇƬǝƺ département ). Lastly, in Occitanie, ASN was informed by the ARS on ژד ȵȸǣǼ א ׎׏ ژח Ȓǔ Ə ɀƬǝȒȒǼ ǣȇ Ɏǝƺ ȅɖȇǣƬǣȵƏǼǣɎɵ Ȓǔ ɖȅȒȇɎ ٮ Aubrac (Lozère département ) where the reference level Ȓǔ ב ׎׎ ژ ȷٖȅ 3 ژ ɯƏɀ ɀǣǕȇǣǔǣƬƏȇɎǼɵ ƺɴƬƺƺƳƺƳِ Áǝƺ ȵɖȵǣǼɀ ƏȇƳ personnel were evacuated from the school. The school immediately contracted an ASN-approved organisation to conduct an expert assessment of the building, diagnose the routes of radon entry into the buildings and recommend works to bring the school into compliance. The school had work carried out to seal the building and install a ventilation system, then had further radon measurements taken, which led to the authorisation for pupils and staff to re-enter the school. The school shall be subject to further radon measurements. 112 ASN Report on the state of nuclear safety and radiation protection in France in 2019 ׎׏ ٲ NUCLEAR ACTIVITIES: IONISING RADIATION AND HEALTH AND ENVIRONMENTAL RISKS