Exposures and cancer incidence near oil fields in the Amazon basin of Ecuador.
Occup Environ Med
; 58(8): 517-22, 2001 Aug.
Article
em En
| MEDLINE
| ID: mdl-11452046
OBJECTIVES: To examine environmental exposure and incidence and mortality of cancer in the village of San Carlos surrounded by oil fields in the Amazon basin of Ecuador. METHODS: Water samples of the local streams were analyzed for total petroleum hydrocarbons (TPHs). A preliminary list of potential cancer cases from 1989 to 1998 was prepared. Cases were compared with expected numbers of cancer morbidity and mortality registrations from a Quito reference population. RESULTS: Water analysis showed severe exposure to TPHs by the residents. Ten patients with cancer were diagnosed while resident in the village of San Carlos. An overall excess for all types of cancer was found in the male population (8 observed v 3.5 expected) with a risk 2.26 times higher than expected (95% confidence interval (95% CI) 0.97 to 4.46). There was an overall excess of deaths for all types of cancer (6 v 1.6 expected) among the male population 3.6 times higher than the reference population (95% CI 1.31 to 7.81). CONCLUSIONS: The observed excess of cancer might be associated with the pollution of the environment by toxic contaminants coming from the oil production.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Poluição Química da Água
/
Indústrias Extrativas e de Processamento
/
Exposição Ambiental
/
Hidrocarbonetos
/
Neoplasias
Tipo de estudo:
Incidence_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Adult
/
Aged
/
Child, preschool
/
Female
/
Humans
/
Male
/
Middle aged
País/Região como assunto:
America do sul
/
Ecuador
Idioma:
En
Revista:
Occup Environ Med
Assunto da revista:
MEDICINA OCUPACIONAL
/
SAUDE AMBIENTAL
Ano de publicação:
2001
Tipo de documento:
Article
País de afiliação:
Equador
País de publicação:
Reino Unido