{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T18:25:54Z","timestamp":1785435954668,"version":"3.56.0"},"reference-count":28,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2020,1,29]],"date-time":"2020-01-29T00:00:00Z","timestamp":1580256000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Radon gas has been declared a human carcinogen by the United States Environmental Protection Agency (USEPA) and the International Agency for Research on Cancer (IARC). Several studies carried out in Spain highlighted the high radon concentrations in several regions, with Galicia (northwestern Spain) being one of the regions with the highest radon concentrations. The objective of this work was to create a safe and low-cost radon monitoring and alert system, based on open source technologies. To achieve this objective, the system uses devices, a collection of sensors with a processing unit and a communication module, and a backend, responsible for managing all the information, predicting radon levels and issuing alerts using open source technologies. Security is one of the largest challenges for the internet of things, and it is utterly important in the current scenario, given that high radon concentrations pose a health risk. For this reason, this work focuses on securing the entire end-to-end communication path to avoid data forging. The results of this work indicate that the development of a low-cost, yet secured, radon monitoring system is feasible, allowing one to create a network of sensors that can help mitigate the health hazards that high radon concentrations pose.<\/jats:p>","DOI":"10.3390\/s20030752","type":"journal-article","created":{"date-parts":[[2020,1,29]],"date-time":"2020-01-29T10:51:07Z","timestamp":1580295067000},"page":"752","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":23,"title":["Developing a Secure Low-Cost Radon Monitoring System"],"prefix":"10.3390","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3404-3354","authenticated-orcid":false,"given":"Alberto","family":"Alvarellos","sequence":"first","affiliation":[{"name":"RNASA-IMEDIR, Computer Science Faculty, University of A Coruna, 15071 A Coru\u00f1a, Spain"},{"name":"Centro de Investigaci\u00f3n en Tecnolog\u00edas de la Informaci\u00f3n y las Comunicaciones (CITIC), Campus de Elvi\u00f1a s\/n, 15071 A Coru\u00f1a, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4371-8632","authenticated-orcid":false,"given":"Marcos","family":"Gestal","sequence":"additional","affiliation":[{"name":"RNASA-IMEDIR, Computer Science Faculty, University of A Coruna, 15071 A Coru\u00f1a, Spain"},{"name":"Centro de Investigaci\u00f3n en Tecnolog\u00edas de la Informaci\u00f3n y las Comunicaciones (CITIC), Campus de Elvi\u00f1a s\/n, 15071 A Coru\u00f1a, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juli\u00e1n","family":"Dorado","sequence":"additional","affiliation":[{"name":"RNASA-IMEDIR, Computer Science Faculty, University of A Coruna, 15071 A Coru\u00f1a, Spain"},{"name":"Centro de Investigaci\u00f3n en Tecnolog\u00edas de la Informaci\u00f3n y las Comunicaciones (CITIC), Campus de Elvi\u00f1a s\/n, 15071 A Coru\u00f1a, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1253-4419","authenticated-orcid":false,"given":"Juan Ram\u00f3n","family":"Rabu\u00f1al","sequence":"additional","affiliation":[{"name":"RNASA-IMEDIR, Computer Science Faculty, University of A Coruna, 15071 A Coru\u00f1a, Spain"},{"name":"Centro de Innovaci\u00f3n Tecnol\u00f3xica en Edificaci\u00f3n e Enxe\u00f1er\u00eda Civil (CITEEC), Campus de Elvi\u00f1a s\/n, 15071 A Coru\u00f1a, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2020,1,29]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"421","DOI":"10.1016\/1359-0189(88)90001-5","article-title":"Radon in the environment\u2014Opportunities and hazards","volume":"14","author":"Fleischer","year":"1988","journal-title":"Nucl. 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Proceedings of the 2018 17th International Symposium INFOTEH-JAHORINA (INFOTEH), East Sarajevo, Bosnia-Herzegovina.","DOI":"10.1109\/INFOTEH.2018.8345544"},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Aas, J., Rescorla, E., Schoen, S., Warren, B., Barnes, R., Case, B., Durumeric, Z., Eckersley, P., Flores-L\u00f3pez, A., and Halderman, J.A. (2019). Let\u2019s Encrypt: An Automated Certificate Authority to Encrypt the Entire Web. CCS \u201919: Proceedings of the 2019 ACM SIGSAC, ACM Press.","DOI":"10.1145\/3319535.3363192"},{"key":"ref_26","doi-asserted-by":"crossref","unstructured":"Kasten, J., Barnes, R., Hoffman-Andrews, J., and McCarney, D. (2019, December 23). Automatic Certificate Management Environment (ACME). Available online: https:\/\/tools.ietf.org\/html\/rfc8555.","DOI":"10.17487\/RFC8555"},{"key":"ref_27","unstructured":"Microchip Technology Inc. (2019, December 20). ATECC508A CryptoAuthentication Device Complete Data Sheet. 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