TÉCNICAS DE PREVENCIÓN

PLAN NACIONAL DE RADÓN

Carlos Sainz Fernández & Luis S.Quindos PoncelaCatedráticos de la

Universidad de Cantabria

CURSO RADON, Oleiros 2019

INTERNATIONAL

1990 2010

Basic Safety Standards

20182014

2014

COUNCIL DIRECTIVE 2013/59/EURATOMof 5 December 2013

laying down basic safety standards for protection against the dangers arising from exposure

to ionising radiation, and repealing Directives 89/618/Euratom, 90/641/Euratom, 96/29/Euratom,

97/43/Euratom and 2003/122/Euratom

MODERNISATION OF EUROPEAN RADIATION PROTECTION LEGISLATION

ANNEX XVIIIIndicative list of items to be covered in the national action plan

to manage long term risks from radon exposures)

SURVEYSINDOORS

AND GEOGENIC PUBLIC

AWARENESS ACTION PLAN

RESPONSIBILITIES

FINANTIAL SUPPORT

REFERENCE LEVELS PREVENTION

MITIGATIONLONG TERMGOALS

(SMOKERS AND NON SMOKERS

RADON-PRIORITY

AREAS

BUILDING IDENTIFICATION

WORKPLACESSTRATEGY EXPOSURE REDUCTION

MEASUREMENT TECHNIQUES

AND METHODS

RELATED TOPICS (IAQ,

ENERGY SAVING)

SPAIN

NEW RD 2018 (draft versión)

Final step in EURATOM Directive 96 integration in Spanish Law

TITULO VII: Occupational exposure to natural sources of radiation

NOT APPLIED FOR RADON EXPOSURE IN DWELLINGS

Competent authority is not clearly stablished

2001

Definition of the competent authority & Owner responsibility

MANDATORY control of exposure to natural sources of radiation

NOT APPLIED FOR RADON EXPOSURE IN DWELLINGS

2010

From Spanish Nuclear Safety Council (CSN)

Setting of radiological criteria for interventionin workplaces with exposure to natural sources of radiation:

-Effective doses (without radon)-RADON CONCENTRATION(average annual)

< 600 Bq m-3 No control needed600 – 1000 Bq m-3 LOW control level> 1000 Bq m-3 HIGH control level

Workplaces with high permanence of publicAction level: 300 Bq m-3

2011

Guías Seguridad CSN11.0111.02

DRAFT VERSION

CHANGES RELATED WITH SOME DOSE LIMITS

GAMMA DOSE FROM BUILDING MATERIALS

INCLUSION OF NORM INDUSTRIES

COMMITEE FOR NATIONAL RADON ACTION PLAN (Ministery of Health, Social Services and Equality)

RADON REGULATION FOR WORKPLACES AND DWELLINGS

BASED ON ICRP 103!!

2018 Partial transposition of the Directive

SURVEYSINDOORS

AND GEOGENIC

RADON-PRIORITY

AREAS

12000+ indoor measurements

DEFINITION OF RADON PRIORITY AREAS

- MAP- GEOGENIC MAGNITUDES

The Spanish strategy to estimate annual-averaged soil radonlevels for the next amendment of Building Regulations

13th GARRM Workshop. Faculty of Nuclear Sciences and Physical Engineering, Czech Technical Univ., September 15, 2016

Ll. Font1, M. García-Talavera2, H. Alonso3, M.A. Arnedo3, J. Bach5, J.A. Carrasco5, M. A. Duch4, I. Fuente7, J. Ga. Rubiano3, J. Garcia-Orellana1, J. L. Gutiérrez7, A.

Hierro1, F.J. López-Acevedo2, P. Martel3, V. Moreno1, E. Navarro6, L. Quindós7, A. Ramírez6, V. Rodellas1, M.D. Rodriguez-González4, C. Sainz7, A. Sánchez8, E.

Sanz8, A. Tejera3, A. Vargas4

1 Departament de Física. Universitat Autònoma de Barcelona.2 Consejo de Seguridad Nuclear.3 Departamento de Física. Universidad de Las Palmas de Gran Canaria.4 Institut de Tècniques Energètiques. Universitat Politècnica de Catalunya.5 Departament de Geologia. Universitat Autònoma de Barcelona.6 Geocisa. E-28823 Coslada.7 Grupo Radón. Universidad de Cantabria.8 Geomnia Natural Resources S.L.N.E.

September 15, 2016

The Spanish strategy

3

Explore the applicability of the Czech methodology

Soil gas-permeability assessment

Radon risk assessment

Soil-gas radon assessment

New Technical Building Code published by 2018

Use Spanish Radon risk map?

LowMedium

High

Czech approach

12

CANTABRIA REGION5000 KM21% NATIONAL SURFACE

METHOD OF IDENTIFICATION OF RADON-PRIORITY

AREAS ACCORDING TO THE STANDARD

EUROPEAN 10x10 KM MAP SYSTEM

RADON GROUPUNIVERSITY OF CANTABRIA

LaRUC

2nd International Workshop on the European Atlas of Natural Radiation

Verbania, Italy, 6-9 November 2017

C. Sainz Fernández, A. Fernández Villar, S. Celaya González, D. RábagoGómez, J. Remondo Tejerina, I. Fuente Merino, L.S. Quindós Poncela,

®GEOLOGICAL MAP 1:1.5MINDOOR

RADON MAP

CONCLUSIONS

2. Geology is a factor to be taken into account for a general identification of

radon priority areas. However, lithoestratigraphic maps are more representative in

the definition of radon priority areas because they have a better resolution.

3. The number of radon mesurements per cell is critical for a good delimitation of

radon priority areas

1. The geological formations created in the Hercynian Orogeny can serve as a

first approximation in the identification of radon priority areas.

MOST PROBABLE CRITERIA

BUILDING IDENTIFICATION

WORKPLACES

EXAMPLESPA

EXAMPLECaves

WIDE VARIETY OF WORKPLACES (tunnels, undergrond places, groundfloor, etc…)

Challenges with monitorization (personal dosimetry)

REFERENCE LEVELS

300 Bq m-3 annual average for all situations

RESPONSIBILITIES

MINISTRY OF HEALTH, SOCIAL SERVICES AND EQUALITY (Coordination)

NUCLEAR SAFETY COUNCILMINISTRY OF ENERGY, TOURISM, DIGITAL AGENDA

MINISTRY OF DEVELOPMENTMINISTRY OF EMPLOYMENT AND SOCIAL

SECURITY

PUBLIC ADMINISTRATIONS(AUTONOMOUS COMMUNITIES)

MITIGATION

(MCINN 2011-2013)

Strategies

In soil depressurizationTo evacuate gas before entering into

building

Radon BarrierTo reinforce gas tightness

VentilationBy gas dilution with

external air

Remediation Action can be referred: 3 basics strategies

Natural

Mechanical

Institute for Building Science Eduardo Torroja (CSIC). Borja Frutos

Sump

200

400

800

1.60

0

3.20

0

6.40

0

12.8

00

25.6

00

51.2

00

Límite de riesgo

CO

NC

EN

TRA

CIÓ

NIN

ICIA

LE

NPL

ANTA

16.

855

Bq/

m3

CO

NC

EN

TRA

CIÓ

NIN

ICIA

LE

NSÓ

TAN

O39

.385

Bq/

m3

• Underneath 56 W

•Underneath 80 W• Outside 80 W

Pressurization

Under floor ventilation

Radon barrier

mec

hani

cal

Nat

ural

39.385B

q/m3

6.855B

q/m3

Actuation Limit (EURATOM 90)0

P. Sótano 39.385

P. 1ª 6.855

P. Sótano 1.742

P. 1ª 603

P. Sótano 16.607

P. 1ª 3.213

P. Sótano 409

P. 1ª 368

P. Sótano 349

P. 1ª 479

P. Sótano 327

P. 1ª 480

P. Sótano 271

P. 1ª 380

P. Sótano 10.072

P. 1ª 307

P. Sótano 1.446

P. 1ª 434

INITIAL

• underneath

• outside

Institute for Building Science Eduardo Torroja (CSIC). Borja Frutos

EFFECTIVENESS

Implementation of radon remediation techniques in dwellings of Băița uranium mine area

ACTIVITIES:• indoor radon measurements in 303 houses,• detailed diagnostic measurements,• development,• test (PILOT HOUSE) and implementation of remedial measures in 20

houses of Ştei-Băiţa radon-prone area

IRART PROJECT(2010-2013)ROMANIA

Studies of mitigation methods in pilot house (example)

Remediation technique

Efficiency Costs

(reduction factor - %) (EURO)

IRART RADPAR IRART RADPAR

Improving natural ventilation 10-84 10-50 2500 4000

Insulation of floors. Anti-radon barrier 60-65 10-60 1800 2500

Improving mechanical ventilation 65-78 10-60 2600 5000

Ventilation methods combined with soil

depressurisation 88-95 60-99 3200 6000

SUMMARY OF RESULTS IRART PROJECT

PREVENTION

BUILDING MATERIALS(example)

More than 200 types of granite

characterized

Influence of “grain size”Porosity

Emanation factor…

CountertopsProblems to be placed in the

international market (I index)

NO radon problems

TECHNICAL BUILDING CODE (TCE)

PUBLICAWARENESS

(Javier Pulido 2011)

Severalactivities in different EU

countries

MEASUREMENT TECHNIQUES

AND METHODS

(Leonardo Da Vinci)

REFERENCE RADONCHAMBER (UPC)

LABORATORY OF NATURAL

RADIOACTIVITY(LNR)

Intercomparisonsunder ‘field conditions’

FINANTIAL SUPPORT

LONG TERMGOALS

(SMOKERS AND NON SMOKERS

No news!Coordination/integration

lung cancer policies

RELATED TOPICS (IAQ, ENERGY

SAVING, ETC…)

Preliminary results related with radon and indoor air quality within SMART_RAD_EN

European Project

Programul Operațional Competitivitate 2014-2020, Axa prioritară POC-A1-A1.1.4-E-2015Titlul Proiectului: Sisteme inteligente privind siguranța populației prin controlul şi reducerea expunerii la radon corelate

cu optimizarea eficienţei energetice a locuinţelor din aglomerări urbane importante din România - SMART-RAD-ENNr. contract: 22/01.09.2016, cod proiect: ID P_37_229, cod MySmis2014+: 103427

Beneficiar: Universitatea „Babeş-Bolyai” din Cluj-NapocaProiect cofinanţat din Fondul European de Dezvoltare Regională prin Programul Operaţional Competitivitate 2014-2020

Carlos Sainz, Alexandra Cucoș, Tiberius Dicu, Bottond Papp, Mircea Moldovan, BetyBurghele, Ancuta Țenter, Kinga Szacsvai, Simion Beldean, Artur Tunyagi, Tiberiu Catalina,

Andrei Istrate1 Babes-Bolyai University, Faculty of Environmental Science and Engineering, Cluj-Napoca, Romania

2 University of Cantabria, Faculty of Medicine, Department of Medical Physics, Santander, Spain

3 Babes-Bolyai University, Faculty of Physics, Cluj-Napoca, Romania

4 Technical University of Civil Engineering Bucharest, Faculty of Engineering for Building Services, Bucharest, Romania

CONCLUSSIONS/REMARKS

OFFICIAL BEGINNING VS LONG TERM WORK

COORDINATED WORK(authorities, laboratories,

companies, local administrations…)

‘KNOW HOW’ FROM OTHER COUNTRIES

THANK YOU FORYOUR ATTENTION

MERCI BEAUCOUP POUR VOTRE ATTENTION