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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
21/08/2021 |
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Data da última atualização: |
21/08/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
NASCIMENTO, A. de M.; PAULA, V. R. de; DIAS, E. H. O.; CARNEIRO, J. da C.; OTENIO, M. H. |
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Afiliação: |
ANDRESSA DE MATOS NASCIMENTO, Universidade Federal de Juiz de Fora; VANESSA ROMARIO DE PAULA, CNPGL; EDGARD HENRIQUE OLIVEIRA DIAS, Universidade Federal de Juiz de Fora; JAILTON DA COSTA CARNEIRO, CNPGL; MARCELO HENRIQUE OTENIO, CNPGL. |
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Título: |
Quantitative microbial risk assessment of occupational and public risks associated with bioaerosols generated during the application of dairy cattle wastewater as biofertilizer. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Science of the Total Environment, v. 745, 140711, 2020 |
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DOI: |
https://doi.org/10.1016/j.scitotenv.2020.140711 |
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Idioma: |
Inglês |
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Conteúdo: |
The reuse or recycling of wastewater provides environmental and economic benefits, representing a sustainable and circular alternative for the management of liquid waste. However, the application of effluents to agricultural crops via spraying creates a potentially dangerous situation for individuals exposed to airborne pathogens. This study used Quantitative Microbial Risk Assessment (QMRA) tools to quantitatively assess the microbial risks of occupational and public exposures to bioaerosols in fertigation scenarios by spraying untreated and treated dairy cattle wastewater. Analyses of Escherichia coli (EC) and spores of Clostridium perfringens (CpSP) in raw and treated effluents aswell as pathogen / indicator ratios fromthe literaturewere used to estimate the concentrations of Escherichia coli O157:H7 (EC O157:H7) and Cryptospodirium spp. (Crypto) in the air, and the results were applied to an atmospheric microbiological dispersion model. From the concentrations of pathogens in the air, infectious risks for downwind receptors were calculated. The risks of infection by EC O157:H7 to workers at 10mand 50maway fromthe emission source ranged between 3.81 × 10 1 and 2.68 × 10 3 pppy (per person per year), whereas to residents at 100m and 500 m ranged from4.59 × 10 1 to 1.51 × 10 4 pppy. Peak values (95th percentile) of occupational and public risks associated with the exposure to Crypto were 3.41 × 10 3 and 6.84× 10 4 pppy at 10mand 50mfromthe source, respectively, and were lower than 1.48× 10 6 pppy regarding. exposures to CpSP. Anaerobic digestion reduced risks by approximately one order of magnitude. The distance fromthe sourcewas inversely proportional to the risk of exposure. It is recommended that wastewater is treated prior to its reuse and the adoption of application methodswith lowaerosolization potential. In addition, the need for workers to use personal protective equipment (PPE) is highlighted. MenosThe reuse or recycling of wastewater provides environmental and economic benefits, representing a sustainable and circular alternative for the management of liquid waste. However, the application of effluents to agricultural crops via spraying creates a potentially dangerous situation for individuals exposed to airborne pathogens. This study used Quantitative Microbial Risk Assessment (QMRA) tools to quantitatively assess the microbial risks of occupational and public exposures to bioaerosols in fertigation scenarios by spraying untreated and treated dairy cattle wastewater. Analyses of Escherichia coli (EC) and spores of Clostridium perfringens (CpSP) in raw and treated effluents aswell as pathogen / indicator ratios fromthe literaturewere used to estimate the concentrations of Escherichia coli O157:H7 (EC O157:H7) and Cryptospodirium spp. (Crypto) in the air, and the results were applied to an atmospheric microbiological dispersion model. From the concentrations of pathogens in the air, infectious risks for downwind receptors were calculated. The risks of infection by EC O157:H7 to workers at 10mand 50maway fromthe emission source ranged between 3.81 × 10 1 and 2.68 × 10 3 pppy (per person per year), whereas to residents at 100m and 500 m ranged from4.59 × 10 1 to 1.51 × 10 4 pppy. Peak values (95th percentile) of occupational and public risks associated with the exposure to Crypto were 3.41 × 10 3 and 6.84× 10 4 pppy at 10mand 50mfromthe source, respectively, and were low... Mostrar Tudo |
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Palavras-Chave: |
Aerosolization of pathogens; Atmospheric dispersion. |
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Thesagro: |
Adubo de Esgoto; Bovino. |
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Thesaurus Nal: |
Fertigation; Risk assessment. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02823naa a2200253 a 4500
001 2133786
005 2021-08-21
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.scitotenv.2020.140711$2DOI
100 1 $aNASCIMENTO, A. de M.
245 $aQuantitative microbial risk assessment of occupational and public risks associated with bioaerosols generated during the application of dairy cattle wastewater as biofertilizer.$h[electronic resource]
260 $c2020
520 $aThe reuse or recycling of wastewater provides environmental and economic benefits, representing a sustainable and circular alternative for the management of liquid waste. However, the application of effluents to agricultural crops via spraying creates a potentially dangerous situation for individuals exposed to airborne pathogens. This study used Quantitative Microbial Risk Assessment (QMRA) tools to quantitatively assess the microbial risks of occupational and public exposures to bioaerosols in fertigation scenarios by spraying untreated and treated dairy cattle wastewater. Analyses of Escherichia coli (EC) and spores of Clostridium perfringens (CpSP) in raw and treated effluents aswell as pathogen / indicator ratios fromthe literaturewere used to estimate the concentrations of Escherichia coli O157:H7 (EC O157:H7) and Cryptospodirium spp. (Crypto) in the air, and the results were applied to an atmospheric microbiological dispersion model. From the concentrations of pathogens in the air, infectious risks for downwind receptors were calculated. The risks of infection by EC O157:H7 to workers at 10mand 50maway fromthe emission source ranged between 3.81 × 10 1 and 2.68 × 10 3 pppy (per person per year), whereas to residents at 100m and 500 m ranged from4.59 × 10 1 to 1.51 × 10 4 pppy. Peak values (95th percentile) of occupational and public risks associated with the exposure to Crypto were 3.41 × 10 3 and 6.84× 10 4 pppy at 10mand 50mfromthe source, respectively, and were lower than 1.48× 10 6 pppy regarding. exposures to CpSP. Anaerobic digestion reduced risks by approximately one order of magnitude. The distance fromthe sourcewas inversely proportional to the risk of exposure. It is recommended that wastewater is treated prior to its reuse and the adoption of application methodswith lowaerosolization potential. In addition, the need for workers to use personal protective equipment (PPE) is highlighted.
650 $aFertigation
650 $aRisk assessment
650 $aAdubo de Esgoto
650 $aBovino
653 $aAerosolization of pathogens
653 $aAtmospheric dispersion
700 1 $aPAULA, V. R. de
700 1 $aDIAS, E. H. O.
700 1 $aCARNEIRO, J. da C.
700 1 $aOTENIO, M. H.
773 $tScience of the Total Environment$gv. 745, 140711, 2020
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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| Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
15/12/2008 |
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Data da última atualização: |
09/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
OLIVEIRA, M. C. de S.; OLIVEIRA-SIQUEIRA, T. C. G.; REGITANO, L. C. de A.; ALENCAR, M. M. de; NÉO, T. A.; SILVA, A. M.; OLIVEIRA, H. N. |
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Afiliação: |
MARCIA CRISTINA DE SENA OLIVEIRA, CPPSE; T.C.G. Oliveira-Sequeira, UNESP/Botucatu; LUCIANA CORREIA DE ALMEIDA REGITANO, CPPSE; MAURICIO MELLO DE ALENCAR, CPPSE; Talita A. Néo, UFSCar; Ana Mary Silva, FAPESP; H. N. Oliveira, UNESP/Botucatu. |
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Título: |
Detection of Babesia bigemina in cattle of different genetic groups and in Rhipicephalus (Boophilus) microplus tick. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Veterinary Parasitology, v. 155, n. 3-4, p. 281-286, aug. 2008. |
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DOI: |
10.1016/j.vetpar.2008.04.022 |
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Idioma: |
Inglês |
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Conteúdo: |
Babesia bigemina infections were investigated in four genetic groups of beef cattle and in Rhipicephalus (Boophilus) microplus engorged female ticks. Blood samples and engorged female ticks were collected from 15 cows and 15 calves from each of the following genetic groups: Nelore, Angus Nelore, Canchim Nelore, and Simmental Nelore. Microscopic examination of blood smears and tick hemolymph revealed that merozoites of B. bigemina (6/60) as well as kinetes of Babesia spp. (9/549) were only detected in samples (blood and ticks, respectively) originated from calves. PCR-based methods using primers for specific detection of B. bigemina revealed 100% infection in both calves and cows, regardless the genetic group. Tick infection was detected by nested-PCR amplifications showing that the frequency of B. bigemina was higher (P < 0.01) in female ticks collected from calves (134/549) than in those collected from cows (52/553). The frequency of B. bigemina was similar in ticks collected from animals, either cows or calves, of the four genetic groups (P > 0.05). |
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Palavras-Chave: |
PCR; Tick. |
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Thesaurus NAL: |
babesiosis; beef cattle. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 01856naa a2200253 a 4500
001 1048679
005 2023-03-09
008 2008 bl uuuu u00u1 u #d
024 7 $a10.1016/j.vetpar.2008.04.022$2DOI
100 1 $aOLIVEIRA, M. C. de S.
245 $aDetection of Babesia bigemina in cattle of different genetic groups and in Rhipicephalus (Boophilus) microplus tick.$h[electronic resource]
260 $c2008
520 $aBabesia bigemina infections were investigated in four genetic groups of beef cattle and in Rhipicephalus (Boophilus) microplus engorged female ticks. Blood samples and engorged female ticks were collected from 15 cows and 15 calves from each of the following genetic groups: Nelore, Angus Nelore, Canchim Nelore, and Simmental Nelore. Microscopic examination of blood smears and tick hemolymph revealed that merozoites of B. bigemina (6/60) as well as kinetes of Babesia spp. (9/549) were only detected in samples (blood and ticks, respectively) originated from calves. PCR-based methods using primers for specific detection of B. bigemina revealed 100% infection in both calves and cows, regardless the genetic group. Tick infection was detected by nested-PCR amplifications showing that the frequency of B. bigemina was higher (P < 0.01) in female ticks collected from calves (134/549) than in those collected from cows (52/553). The frequency of B. bigemina was similar in ticks collected from animals, either cows or calves, of the four genetic groups (P > 0.05).
650 $ababesiosis
650 $abeef cattle
653 $aPCR
653 $aTick
700 1 $aOLIVEIRA-SIQUEIRA, T. C. G.
700 1 $aREGITANO, L. C. de A.
700 1 $aALENCAR, M. M. de
700 1 $aNÉO, T. A.
700 1 $aSILVA, A. M.
700 1 $aOLIVEIRA, H. N.
773 $tVeterinary Parasitology$gv. 155, n. 3-4, p. 281-286, aug. 2008.
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Embrapa Pecuária Sudeste (CPPSE) |
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