SciELO - Scientific Electronic Library Online

 
vol.34 número5Distribution of the pill clam Pisidium langleyanum Melvill & Ponsonby, 1891 (Bivalvia: Sphaeriidae) in South AfricaProbabilistic risk assessment of the environmental impacts of pesticides in the Crocodile (west) Marico catchment, North-West Province índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Artigo

Indicadores

Links relacionados

  • Em processo de indexaçãoCitado por Google
  • Em processo de indexaçãoSimilares em Google

Compartilhar


Water SA

versão On-line ISSN 1816-7950
versão impressa ISSN 0378-4738

Resumo

FOSSO-KANKEU, E; JAGALS, P  e  DU PREEZ, H. Exposure of rural households to toxic cyanobacteria in container-stored water. Water SA [online]. 2008, vol.34, n.5, pp.631-636. ISSN 1816-7950.

Cyanobacteria are potent producers of cyanotoxins that may present a health risk to people. This is especially important in rural areas where people use untreated surface water, containing cyanobacteria, for household purposes including cooking and drinking. Water is collected from these sources mainly in plastic containers, transported home and stored during use. This study investigated the occurrence of cyanobacteria and their associated toxins in these containers as well as in the associated surface water sources. The results suggest that cyanobacteria are transferred from the water sources to the containers and then survive and possibly grow in biofilm forming inside the vessels. Their associated cyanotoxins were not found in any health-significant quantities in containers. However, the occurrence of cyanobacteria in the water used by the households collected in containers clearly indicates that it can be an important route of exposure especially if toxic cyanobacteria are present in the source water. In several cases a risk of cyano-intoxication might exist unless the households undertake preventative measures.

Palavras-chave : cyanobacteria; cyanotoxin; microcystin; surface water sources; drinking water containers; biofilm.

        · texto em Inglês     · Inglês ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons