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Gases, Asphyxiating and Poisonous
Ammonia truck upsets, leaks, Sheldahl
Maynard families flee ammonia leak
Invention leaves you cold, but could save your life
Ammonia fumes fill dairy, Des Moines
Ray speaks up on chemicals
Representative Culver says Fereral regulation of transportation of hazardou
Twenty-two gas route wrecks told
Flee wrecks in forty-one towns past five years - location and dates listed
Tells new gas shipping plan
Gas shipments derailed
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