Ore dust pollution, hatching and egg temperatures in birds

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Dry ore dust pollution decreased the hatching success of fowl eggs from 76% in the control to 57% when manganese ore dust and 54% when iron ore dust were used. Daily wetting of eggs aggravated the ore dust effect. When eggs were covered with ore dust, the heat exchange properties of eggs exposed to direct sunlight were significantly changed. Manganese and iron ore dust covered eggs heated and cooled at a significantly faster rates than the controls. The interior uppermost area may reach a temperature of 54°C after 60 minutes in the sun. Manganese ore dust covered brown eggs were the most affected and white eggs the least. Ore dust pollution therefore poses a threat to the hatching success of bird eggs. © 1978.




Erasmus, T., Strydom, W., Tipshraeny, O., & Watling, R. J. (1978). Ore dust pollution, hatching and egg temperatures in birds. Marine Pollution Bulletin, 9(2), 48–52. https://doi.org/10.1016/0025-326X(78)90533-7

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