Application of the ALARA principle for radon at work: feedback from the European ALARA network.

The Council Directive 2013/59/Euratom has introduced binding requirements for the management of radon in the workplace in Member States of the European Union. How does it work in practice? In 2021, the European ALARA Network created a working group on ALARA for Radon at Work with the objective of collecting and sharing experiences from the field. A survey was developed to detail each step of the national regulations for the control of radon and to describe case studies showing implementation.

Health Survey in a Peruvian health system (ENSSA): design, methodology and general results.

Objective: To report the design, methodology and initial results of the National Socioeconomic Survey of Access to Health of the EsSalud Insured.

Results: There were interviews in 25,000 homes, surveying 79,874 people, of which 62,659 were affiliated to EsSalud. The insured people are mainly males (50.

A national survey on radon remediation in Switzerland.

We present and discuss the results of a national survey on radon remediation. The main purpose of the survey was to evaluate the rate of radon remediation in Switzerland and to identify the main reasons for not taking action in cases of high radon levels. Switzerland is strongly affected by radon problems and extensive efforts have been made to map the radon potential and to investigate the most effective methods to reduce radon levels in different buildings.

A DISCUSSION ON DIFFERENT APPROACHES FOR ASSESSING LIFETIME RISKS OF RADON-INDUCED LUNG CANCER.

Lifetime risks of radon induced lung cancer were assessed based on epidemiological approaches for Canadian, Swiss and Chinese populations, using the most recent vital statistic data and radon distribution characteristics available for each country. In the risk calculation, the North America residential radon risk model was used for the Canadian population, the European residential radon risk model for the Swiss population, the Chinese residential radon risk model for the Chinese population, and the EPA/BEIR-VI radon risk model for all three populations. The results were compared with the risk calculated from the International Commission on Radiological Protection (ICRP)'s exposure-to-risk conversion coefficients.

Major influencing factors of indoor radon concentrations in Switzerland.

Purpose: In Switzerland, nationwide large-scale radon surveys have been conducted since the early 1980s to establish the distribution of indoor radon concentrations (IRC). The aim of this work was to study the factors influencing IRC in Switzerland using univariate analyses that take into account biases caused by spatial irregularities of sampling.

Methods: About 212,000 IRC measurements carried out in more than 136,000 dwellings were available for this study.