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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
24/10/2025 |
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Data da última atualização: |
24/10/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BRITO, D. Q. de; RIBEIRO, M. de L.; AGUIAR, H. C. de; OLIVEIRA FILHO, E. C. de. |
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Afiliação: |
DARLAN QUINTA DE BRITO, UNIVERSIDADE DE BRASÍLIA; MILLENA DE LIMA RIBEIRO, CENTRO UNIVERSITÁRIO DE BRASÍLIA; HELOÍSA CASTRO DE AGUIAR, CENTRO UNIVERSITÁRIO DE BRASÍLIA; EDUARDO CYRINO DE OLIVEIRA FILHO, CPAC. |
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Título: |
Acute toxicity of commercial ethanol and sodium hypochlorite on freshwater species: potential implications of the COVID-19 pandemic disinfection measures. |
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Ano de publicação: |
2025 |
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Fonte/Imprenta: |
Bulletin of Environmental Contamination and Toxicology, v. 115, article number 50, 2025. |
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DOI: |
https://doi.org/10.1007/s00128-025-04125-7 |
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Idioma: |
Inglês |
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Notas: |
Published online: 16 October 2025. |
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Conteúdo: |
ABSTRACT - The global response to the SARS-CoV-2 pandemic involved intensified disinfection of public spaces, predominantly using 70% ethanol (EtOH) and bleach (sodium hypochlorite). However, the extensive application of these agents has raised concerns regarding their ecotoxicological impact on aquatic ecosystems, particularly following their entry into drainage systems where they can form hazardous disinfection by-products. This study assessed the acute toxicity of commercial 70% EtOH and bleach on two key freshwater species: the cladoceran Ceriodaphnia dubia and the gastropod Biomphalaria glabrata. The 24-h median effective concentration (EC50) of 70% EtOH for C. dubia was 0.45% v/v (3.91 g/L), while the 24-h median lethal concentration (LC50) for B. glabrata was 3.8% v/v (33 g/L). For bleach, the corresponding toxic- ity values were significantly lower, at 0.0000024% (0.025 mg/L) for C. dubia and 0.0776% (815 mg/L) for B. glabrata. These results demonstrate that both disinfectants induce acute toxicity at concentrations substantially below their typical use levels. Notably, bleach proved to be more toxic than 70% EtOH by five orders of magnitude for C. dubia and two for B. glabrata. This study underscores the critical need for cautious use and continuous environmental monitoring of these disinfectants to mitigate their ecological impact and highlights the importance of developing sustainable alternatives. |
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Palavras-Chave: |
COVID-19. |
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Thesagro: |
Desinfecção; Etanol. |
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Thesaurus Nal: |
Acute toxicity; Aquatic ecosystems; Ceriodaphnia dubia; Disinfection; Ethanol; Freshwater; Sodium hypochlorite. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02441naa a2200301 a 4500
001 2180592
005 2025-10-24
008 2025 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s00128-025-04125-7$2DOI
100 1 $aBRITO, D. Q. de
245 $aAcute toxicity of commercial ethanol and sodium hypochlorite on freshwater species$bpotential implications of the COVID-19 pandemic disinfection measures.$h[electronic resource]
260 $c2025
500 $aPublished online: 16 October 2025.
520 $aABSTRACT - The global response to the SARS-CoV-2 pandemic involved intensified disinfection of public spaces, predominantly using 70% ethanol (EtOH) and bleach (sodium hypochlorite). However, the extensive application of these agents has raised concerns regarding their ecotoxicological impact on aquatic ecosystems, particularly following their entry into drainage systems where they can form hazardous disinfection by-products. This study assessed the acute toxicity of commercial 70% EtOH and bleach on two key freshwater species: the cladoceran Ceriodaphnia dubia and the gastropod Biomphalaria glabrata. The 24-h median effective concentration (EC50) of 70% EtOH for C. dubia was 0.45% v/v (3.91 g/L), while the 24-h median lethal concentration (LC50) for B. glabrata was 3.8% v/v (33 g/L). For bleach, the corresponding toxic- ity values were significantly lower, at 0.0000024% (0.025 mg/L) for C. dubia and 0.0776% (815 mg/L) for B. glabrata. These results demonstrate that both disinfectants induce acute toxicity at concentrations substantially below their typical use levels. Notably, bleach proved to be more toxic than 70% EtOH by five orders of magnitude for C. dubia and two for B. glabrata. This study underscores the critical need for cautious use and continuous environmental monitoring of these disinfectants to mitigate their ecological impact and highlights the importance of developing sustainable alternatives.
650 $aAcute toxicity
650 $aAquatic ecosystems
650 $aCeriodaphnia dubia
650 $aDisinfection
650 $aEthanol
650 $aFreshwater
650 $aSodium hypochlorite
650 $aDesinfecção
650 $aEtanol
653 $aCOVID-19
700 1 $aRIBEIRO, M. de L.
700 1 $aAGUIAR, H. C. de
700 1 $aOLIVEIRA FILHO, E. C. de
773 $tBulletin of Environmental Contamination and Toxicology$gv. 115, article number 50, 2025.
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| 1. |  | OLIVEIRA, I. R. dos S.; RODRIGUES, F. L.; FARIA, L. C.; MESQUITA, A. Q. de; RODRIGUES, M. T. de O.; MARTINS, G. A. M. M.; MELLO, V. C.; FONSECA, M. J. P.; MARTINS, C. F.; BÁO, S. N. Action of melatonin in bovine embryo culture under high oxygen tension in blastocyst production. Animal Reproduction, v. 22, n. 3, 2025. Edição dos Proceedings 38th Annual Meeting of the Brazilian Embryo Technology Society (SBTE), 2025.| Tipo: Resumo em Anais de Congresso |
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