© 2002 by Oxford University Press
Journal of the National Cancer Institute, Vol. 94, No. 12, 876-878,
June 19, 2002
© 2002 Oxford University Press
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Acrylamide and Cancer: Tunnel Leak in Sweden Prompted Studies
In October 1997, inhabitants of the Bjare peninsula in southwestern Sweden began to worry when their cows suddenly became paralyzed and died, and dead fish were found floating in breeding pools.
Suspicion turned to the massive railroad tunnel being bored through the Hallandsås horst, a ridge of porous rock between two faults in the earths crust. Contractors for the national railway agency had been working for months to plug leaks that played havoc not only with tunnel construction, but with the water table in the regions rich farmland.
A national scandal erupted in green-conscious Sweden when news reports revealed the cause: 1,400 tons of a sealant called Rhoca-Gil had been injected into cracks in the tunnel walls, contaminating ground and surface water with the toxic chemical acrylamide. Tunnel workers suffered numbness due to neurotoxicity.
For fear of contamination, milk and milk products from the region were dumped, vegetables were left
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