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Risker med formaldehyd: Arbetsmiljö och miljörisker av formaldehyd vid Vattenfall Vattenkrafts fiskodling i Heden
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
2014 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

The purpose of this study was to investigate both the chemical impact on the working environment and the environmental effects of formaldehyde in one of Vattenfall Hydro AB fish farms (Heden, northern Sweden). Vattenfall Hydro AB is obliged to introduce fish to compensate for fish stocks damaged as a result of power plant expansion. Vattenfall Hydro AB maintain a number of fish farms throughout Sweden, using formaldehyde to reduce fish diseases. However, formaldehyde is classified as toxic and is hazardous to humans, and can cause severe injuries at low doses. The substance is corrosive, carcinogen, and able to penetrate the skin. Optimized routines for staff handling formaldehyde could reduce the risk for working environment impacts. For example, formaldehyde should be used only during the afternoon to reduce the exposure time of the staff. The concentration of formaldehyde in water released from Vattenfalls Hydro ABs fish farm in Heden into the river Luleå are estimated to 0,063 mg/l during the period June - August, which is below the concentration that causes direct environmental impacts. Nevertheless, the substance shall be handled with caution to avoid environmental effects.

Place, publisher, year, edition, pages
2014. , 36 p.
Keyword [en]
Formaldehyde, degradation rate formaldehyde, toxicity, fish farm, working environment.
National Category
Natural Sciences
URN: urn:nbn:se:umu:diva-90171OAI: diva2:726222
Subject / course
Examensarbete i miljö och hälsoskydd
Educational program
Bachelor of Science in Environmental Health
Available from: 2014-06-18 Created: 2014-06-17 Last updated: 2014-06-18Bibliographically approved

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