Occupational exposure to hydrogen cyanide during large-scale cassava processing, in Alagoas State, Brazil
Autor(a) principal: | |
---|---|
Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Cadernos de Saúde Pública |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-311X2017000705004 |
Resumo: | Abstract: The cassava roots used for flour production contain high amounts of cyanogenic glycosides and are, therefore, potential hydrogen cyanide (HCN) releasers. This fact is the cause of an increasing health concern in the sector of cassava processing. Brazilian workers engaged in the flour production may be chronically exposed to HCN in levels above the safety limits. This hypothesis is based on the drastic reduction in cyanide content of cassava roots during a traditional Brazilian method of processing and in the physical properties of the compound, which makes it very susceptible to volatilization and air contamination. As an attempt to explore this issue, HCN exposure in Brazilian “flour houses” was evaluated in this study through environmental and biological monitoring. Four flour houses placed in Alagoas State, Brazil, were investigated. The results indicated that the cassava processors are chronically exposed to HCN at average levels between 0.464 and 3.328mg/m3 (TWA), in the work environment. This range is below the TLV-C of 5mg/m3 but not below the Action Level of 2.5mg/m3. These data may be interpreted as a possible risk to susceptible individuals. Additionally, the biological monitoring indicated a high cyanide exposure in the population study, considering urinary thiocyanate (SCN-) levels. |
id |
FIOCRUZ-5_5b39e426e19fed67daf5ef4d6b5f3385 |
---|---|
oai_identifier_str |
oai:scielo:S0102-311X2017000705004 |
network_acronym_str |
FIOCRUZ-5 |
network_name_str |
Cadernos de Saúde Pública |
repository_id_str |
|
spelling |
Occupational exposure to hydrogen cyanide during large-scale cassava processing, in Alagoas State, BrazilHydrogen CyanideManihotFlour IndustryOccupational ExposureAbstract: The cassava roots used for flour production contain high amounts of cyanogenic glycosides and are, therefore, potential hydrogen cyanide (HCN) releasers. This fact is the cause of an increasing health concern in the sector of cassava processing. Brazilian workers engaged in the flour production may be chronically exposed to HCN in levels above the safety limits. This hypothesis is based on the drastic reduction in cyanide content of cassava roots during a traditional Brazilian method of processing and in the physical properties of the compound, which makes it very susceptible to volatilization and air contamination. As an attempt to explore this issue, HCN exposure in Brazilian “flour houses” was evaluated in this study through environmental and biological monitoring. Four flour houses placed in Alagoas State, Brazil, were investigated. The results indicated that the cassava processors are chronically exposed to HCN at average levels between 0.464 and 3.328mg/m3 (TWA), in the work environment. This range is below the TLV-C of 5mg/m3 but not below the Action Level of 2.5mg/m3. These data may be interpreted as a possible risk to susceptible individuals. Additionally, the biological monitoring indicated a high cyanide exposure in the population study, considering urinary thiocyanate (SCN-) levels.Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz2017-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-311X2017000705004Cadernos de Saúde Pública v.33 n.7 2017reponame:Cadernos de Saúde Públicainstname:Fundação Oswaldo Cruz (FIOCRUZ)instacron:FIOCRUZ10.1590/0102-311x00073416info:eu-repo/semantics/openAccessZacarias,Cyro HauajiEsteban,ClaudiaRodrigues,Gilson LucioNascimento,Elizabeth de Souzaeng2017-07-21T00:00:00Zoai:scielo:S0102-311X2017000705004Revistahttp://cadernos.ensp.fiocruz.br/csp/https://old.scielo.br/oai/scielo-oai.phpcadernos@ensp.fiocruz.br||cadernos@ensp.fiocruz.br1678-44640102-311Xopendoar:2017-07-21T00:00Cadernos de Saúde Pública - Fundação Oswaldo Cruz (FIOCRUZ)false |
dc.title.none.fl_str_mv |
Occupational exposure to hydrogen cyanide during large-scale cassava processing, in Alagoas State, Brazil |
title |
Occupational exposure to hydrogen cyanide during large-scale cassava processing, in Alagoas State, Brazil |
spellingShingle |
Occupational exposure to hydrogen cyanide during large-scale cassava processing, in Alagoas State, Brazil Zacarias,Cyro Hauaji Hydrogen Cyanide Manihot Flour Industry Occupational Exposure |
title_short |
Occupational exposure to hydrogen cyanide during large-scale cassava processing, in Alagoas State, Brazil |
title_full |
Occupational exposure to hydrogen cyanide during large-scale cassava processing, in Alagoas State, Brazil |
title_fullStr |
Occupational exposure to hydrogen cyanide during large-scale cassava processing, in Alagoas State, Brazil |
title_full_unstemmed |
Occupational exposure to hydrogen cyanide during large-scale cassava processing, in Alagoas State, Brazil |
title_sort |
Occupational exposure to hydrogen cyanide during large-scale cassava processing, in Alagoas State, Brazil |
author |
Zacarias,Cyro Hauaji |
author_facet |
Zacarias,Cyro Hauaji Esteban,Claudia Rodrigues,Gilson Lucio Nascimento,Elizabeth de Souza |
author_role |
author |
author2 |
Esteban,Claudia Rodrigues,Gilson Lucio Nascimento,Elizabeth de Souza |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Zacarias,Cyro Hauaji Esteban,Claudia Rodrigues,Gilson Lucio Nascimento,Elizabeth de Souza |
dc.subject.por.fl_str_mv |
Hydrogen Cyanide Manihot Flour Industry Occupational Exposure |
topic |
Hydrogen Cyanide Manihot Flour Industry Occupational Exposure |
description |
Abstract: The cassava roots used for flour production contain high amounts of cyanogenic glycosides and are, therefore, potential hydrogen cyanide (HCN) releasers. This fact is the cause of an increasing health concern in the sector of cassava processing. Brazilian workers engaged in the flour production may be chronically exposed to HCN in levels above the safety limits. This hypothesis is based on the drastic reduction in cyanide content of cassava roots during a traditional Brazilian method of processing and in the physical properties of the compound, which makes it very susceptible to volatilization and air contamination. As an attempt to explore this issue, HCN exposure in Brazilian “flour houses” was evaluated in this study through environmental and biological monitoring. Four flour houses placed in Alagoas State, Brazil, were investigated. The results indicated that the cassava processors are chronically exposed to HCN at average levels between 0.464 and 3.328mg/m3 (TWA), in the work environment. This range is below the TLV-C of 5mg/m3 but not below the Action Level of 2.5mg/m3. These data may be interpreted as a possible risk to susceptible individuals. Additionally, the biological monitoring indicated a high cyanide exposure in the population study, considering urinary thiocyanate (SCN-) levels. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-311X2017000705004 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-311X2017000705004 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0102-311x00073416 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz |
publisher.none.fl_str_mv |
Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz |
dc.source.none.fl_str_mv |
Cadernos de Saúde Pública v.33 n.7 2017 reponame:Cadernos de Saúde Pública instname:Fundação Oswaldo Cruz (FIOCRUZ) instacron:FIOCRUZ |
instname_str |
Fundação Oswaldo Cruz (FIOCRUZ) |
instacron_str |
FIOCRUZ |
institution |
FIOCRUZ |
reponame_str |
Cadernos de Saúde Pública |
collection |
Cadernos de Saúde Pública |
repository.name.fl_str_mv |
Cadernos de Saúde Pública - Fundação Oswaldo Cruz (FIOCRUZ) |
repository.mail.fl_str_mv |
cadernos@ensp.fiocruz.br||cadernos@ensp.fiocruz.br |
_version_ |
1754115737607208960 |