Data/hora: 22/06/2024 08:09:58

Biblioteca(s): 	Embrapa Pantanal.	
Data corrente: 	01/10/1998	
Data da última atualização: 	28/03/2017	
Autoria: 	HOOVER, S.; HILL, R.; WATSON, T.	
Título: 	Estimating risk from exposure to methylmercury: application to first nations people in Canada.	
Ano de publicação: 	1997	
Fonte/Imprenta: 	Water, Air & Soil Pollution, v.97, n.1/2, p.107-118, 1997.	
Idioma: 	Inglês	
Conteúdo: 	We combined dose-response analyses with a probabilistic exposure assessment to estimate the risks to native Canadians who ingest methylmercury via fish consumption from  natural lakes and reservoir in British Columbia. Available dose-response data included multivariate measurements of central nervous system functioning in Iraqi children exposed to methylmercury prenatally. We applied the method of principal components to simplify the data structure. The first principal component described close to 80% of the variability in the data, making it a resonable choice as an index. The relationship between mercury in maternal hair and the probability of an abnormal neurological effects index was modeled with the logistic and Weibull functions. The goodness-og-fit of the two models is discussed and the results compared to other published dose-response analyses. Exposure distributions were developed to represent methylmercury dose by using observed data on methylmercury contamination in the lakes and reservoir and reasonable assumptions about other key parameters such as fish consumption. We estimated risks to the target population using Monte Carlo simulation. Consumption of resonable quantities of fish from these bodies of water does not pose a significant risk to the aboriginal population.	
Palavras-Chave: 	Cabelo humano; Lago natural; Methylmercury; Metilmercurio; Monte Carlo simulation; Natural lake; Reservatorio; Reservoir; Simulacao de Monte Carlo.	
Thesagro: 	Peixe.	
Thesaurus Nal: 	fish.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Pantanal (CPAP)	
Exemplares: 	CPAP - (36120-1) - ADD - SP - PP - SP15683 -  - 15683 - DIS