Assessing Radiological Risks and Natural Radioactivity in Building Materials from Ica, Peru

Félix Díaz; Rafael Liza; Nhell Cerna; Patrizia Pereyra; Daniel Palacios; Jhonny Rojas; Laszlo Sajo

doi:10.18687/LACCEI2024.1.1.1087

Assessing Radiological Risks and Natural Radioactivity in Building Materials from Ica, Peru

Félix Díaz
, Rafael Liza
, Nhell Cerna
, Patrizia Pereyra
, Daniel Palacios
, Jhonny Rojas
, Laszlo Sajo

Research output: Chapter in Book/Report › Conference contribution › peer-review

Abstract

The study investigated the radon emission rate and potential radiological hazards of high-uranium-content building materials in The Ica area of Southwestern Peru. We used a creative technique that combined a closed chamber and active monitor, and it was improved by a hermetic sealing method to maintain secular equilibrium well. The results showed radon emission rates as low as below detection limits (BDL) up to 52.3 mBq/kg·h. Our analyses with a 3' x 3' NaI detector found radionuclide concentrations in cement samples by gamma spectrometry. We found a high positive correlation between radium activity concentration and radon exhalation rate. The activity concentrations of ²²⁶Ra, ²³²Th, and ⁴⁰K differ significantly, with maximum values reaching 60.6, 22.3, and 1074 mBq/kg·h. We consider these results significant for the safety of materials in the Peruvian construction sector. And we also hope that they will provide information to support radiological risk management.

Original language	American English
Title of host publication	Proceedings of the 22nd LACCEI International Multi-Conference for Engineering, Education and Technology
Subtitle of host publication	Sustainable Engineering for a Diverse, Equitable, and Inclusive Future at the Service of Education, Research, and Industry for a Society 5.0., LACCEI 2024
Publisher	Latin American and Caribbean Consortium of Engineering Institutions
ISBN (Electronic)	9786289520781
DOIs	https://doi.org/10.18687/LACCEI2024.1.1.1087
State	Indexed - 2024
Externally published	Yes
Event	22nd LACCEI International Multi-Conference for Engineering, Education and Technology, LACCEI 2024 - Hybrid, San Jose, Costa Rica Duration: 17 Jul 2024 → 19 Jul 2024

Publication series

Name	Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology
ISSN (Electronic)	2414-6390

Conference

Conference	22nd LACCEI International Multi-Conference for Engineering, Education and Technology, LACCEI 2024
Country/Territory	Costa Rica
City	Hybrid, San Jose
Period	17/07/24 → 19/07/24

Bibliographical note

Publisher Copyright:
© 2024 Latin American and Caribbean Consortium of Engineering Institutions. All rights reserved.

Keywords

Building Materials
Radiological Risks
Radionuclides

Access to Document

10.18687/LACCEI2024.1.1.1087

Cite this

Díaz, F., Liza, R., Cerna, N., Pereyra, P., Palacios, D., Rojas, J., & Sajo, L. (2024). Assessing Radiological Risks and Natural Radioactivity in Building Materials from Ica, Peru. In Proceedings of the 22nd LACCEI International Multi-Conference for Engineering, Education and Technology: Sustainable Engineering for a Diverse, Equitable, and Inclusive Future at the Service of Education, Research, and Industry for a Society 5.0., LACCEI 2024 (Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology). Latin American and Caribbean Consortium of Engineering Institutions. https://doi.org/10.18687/LACCEI2024.1.1.1087

Díaz, Félix ; Liza, Rafael ; Cerna, Nhell et al. / Assessing Radiological Risks and Natural Radioactivity in Building Materials from Ica, Peru. Proceedings of the 22nd LACCEI International Multi-Conference for Engineering, Education and Technology: Sustainable Engineering for a Diverse, Equitable, and Inclusive Future at the Service of Education, Research, and Industry for a Society 5.0., LACCEI 2024. Latin American and Caribbean Consortium of Engineering Institutions, 2024. (Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology).

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title = "Assessing Radiological Risks and Natural Radioactivity in Building Materials from Ica, Peru",

abstract = "The study investigated the radon emission rate and potential radiological hazards of high-uranium-content building materials in The Ica area of Southwestern Peru. We used a creative technique that combined a closed chamber and active monitor, and it was improved by a hermetic sealing method to maintain secular equilibrium well. The results showed radon emission rates as low as below detection limits (BDL) up to 52.3 mBq/kg·h. Our analyses with a 3' x 3' NaI detector found radionuclide concentrations in cement samples by gamma spectrometry. We found a high positive correlation between radium activity concentration and radon exhalation rate. The activity concentrations of 226Ra, 232Th, and 40K differ significantly, with maximum values reaching 60.6, 22.3, and 1074 mBq/kg·h. We consider these results significant for the safety of materials in the Peruvian construction sector. And we also hope that they will provide information to support radiological risk management.",

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doi = "10.18687/LACCEI2024.1.1.1087",

language = "American English",

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Díaz, F, Liza, R, Cerna, N, Pereyra, P, Palacios, D, Rojas, J & Sajo, L 2024, Assessing Radiological Risks and Natural Radioactivity in Building Materials from Ica, Peru. in Proceedings of the 22nd LACCEI International Multi-Conference for Engineering, Education and Technology: Sustainable Engineering for a Diverse, Equitable, and Inclusive Future at the Service of Education, Research, and Industry for a Society 5.0., LACCEI 2024. Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology, Latin American and Caribbean Consortium of Engineering Institutions, 22nd LACCEI International Multi-Conference for Engineering, Education and Technology, LACCEI 2024, Hybrid, San Jose, Costa Rica, 17/07/24. https://doi.org/10.18687/LACCEI2024.1.1.1087

Assessing Radiological Risks and Natural Radioactivity in Building Materials from Ica, Peru. / Díaz, Félix; Liza, Rafael; Cerna, Nhell et al.
Proceedings of the 22nd LACCEI International Multi-Conference for Engineering, Education and Technology: Sustainable Engineering for a Diverse, Equitable, and Inclusive Future at the Service of Education, Research, and Industry for a Society 5.0., LACCEI 2024. Latin American and Caribbean Consortium of Engineering Institutions, 2024. (Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology).

Research output: Chapter in Book/Report › Conference contribution › peer-review

TY - GEN

T1 - Assessing Radiological Risks and Natural Radioactivity in Building Materials from Ica, Peru

AU - Díaz, Félix

AU - Liza, Rafael

AU - Cerna, Nhell

AU - Pereyra, Patrizia

AU - Palacios, Daniel

AU - Rojas, Jhonny

AU - Sajo, Laszlo

PY - 2024

Y1 - 2024

N2 - The study investigated the radon emission rate and potential radiological hazards of high-uranium-content building materials in The Ica area of Southwestern Peru. We used a creative technique that combined a closed chamber and active monitor, and it was improved by a hermetic sealing method to maintain secular equilibrium well. The results showed radon emission rates as low as below detection limits (BDL) up to 52.3 mBq/kg·h. Our analyses with a 3' x 3' NaI detector found radionuclide concentrations in cement samples by gamma spectrometry. We found a high positive correlation between radium activity concentration and radon exhalation rate. The activity concentrations of 226Ra, 232Th, and 40K differ significantly, with maximum values reaching 60.6, 22.3, and 1074 mBq/kg·h. We consider these results significant for the safety of materials in the Peruvian construction sector. And we also hope that they will provide information to support radiological risk management.

AB - The study investigated the radon emission rate and potential radiological hazards of high-uranium-content building materials in The Ica area of Southwestern Peru. We used a creative technique that combined a closed chamber and active monitor, and it was improved by a hermetic sealing method to maintain secular equilibrium well. The results showed radon emission rates as low as below detection limits (BDL) up to 52.3 mBq/kg·h. Our analyses with a 3' x 3' NaI detector found radionuclide concentrations in cement samples by gamma spectrometry. We found a high positive correlation between radium activity concentration and radon exhalation rate. The activity concentrations of 226Ra, 232Th, and 40K differ significantly, with maximum values reaching 60.6, 22.3, and 1074 mBq/kg·h. We consider these results significant for the safety of materials in the Peruvian construction sector. And we also hope that they will provide information to support radiological risk management.

KW - Building Materials

KW - Radiological Risks

KW - Radionuclides

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U2 - 10.18687/LACCEI2024.1.1.1087

DO - 10.18687/LACCEI2024.1.1.1087

M3 - Conference contribution

AN - SCOPUS:85203818855

T3 - Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology

BT - Proceedings of the 22nd LACCEI International Multi-Conference for Engineering, Education and Technology

PB - Latin American and Caribbean Consortium of Engineering Institutions

T2 - 22nd LACCEI International Multi-Conference for Engineering, Education and Technology, LACCEI 2024

Y2 - 17 July 2024 through 19 July 2024

ER -

Díaz F, Liza R, Cerna N, Pereyra P, Palacios D, Rojas J et al. Assessing Radiological Risks and Natural Radioactivity in Building Materials from Ica, Peru. In Proceedings of the 22nd LACCEI International Multi-Conference for Engineering, Education and Technology: Sustainable Engineering for a Diverse, Equitable, and Inclusive Future at the Service of Education, Research, and Industry for a Society 5.0., LACCEI 2024. Latin American and Caribbean Consortium of Engineering Institutions. 2024. (Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology). doi: 10.18687/LACCEI2024.1.1.1087

Assessing Radiological Risks and Natural Radioactivity in Building Materials from Ica, Peru

Abstract

Publication series

Conference

Bibliographical note

Keywords

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