| Comments | Shubenacadie NS, April 27, 1993. A tractor trailer and pup trailer containing hazardous materials hit an ice patch and overturned, causing the leak of chemicals including nitric acid, potassium hydroxide and sodium hydroxide; 20 homes were evacuated (50-60 people) for a few hours; a school was closed for the day (480 students); the highway was closed during the response and clean-up; environmental damages were minimal. |