"You really don't necessarily know what's travelling along these highways and your railways and they're going through all of our towns and cities", said Joseph Baptista, mayor of Leeds and the Thousand Islands, where the spill happened.
The crews were using the daylight hours on Wednesday to assess the extent of the chemical spill.
Highway 401 will remain closed indefinitely in both directions between Mallorytown and Lansdowne, Ontario provincial police said Wednesday.
Gebremedhin said plans are being reviewed to ensure that nearby wetlands are protected.
"Once again we reinforce that there is no immediate danger to the public and that the site is contained".
Poor weather conditions were also blamed for a highway pile-up south of Montreal.
A portion of Highway 401 near Kingston remains closed after one man was killed and dozens were injured in two separate multi-vehicle crashes.
The driver of one of the transport trucks that was caught up in the pileup died of his injuries. There were multiple chain reactions after the fact behind those two collisions.
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She tweeted out a photo of the two of them and wrote, "Religiously profiling son of "The Greatest" will not make us safe". The Department of Homeland Security and JetBlue did not immediately respond to BuzzFeed News request for comment.
It's not yet clear whether the death of the transport driver was related to the hazardous material, identified by hospital officials as fluorosilicic acid.
OPP said that seven firefighters, three police officers and 17 civilians were treated for exposure to the substance as a precaution.
"Three police officers came in contact with it and they've all gone through a decontamination process". She said there are no known private drinking water wells impacted by the chemical spill.
Not long after the crash, the Gananoque Police Service posted on its Facebook page that it had "been upgraded to a haz-mat and mass casualty response".
Quinn said a Code Orange was in place around 8 p.m. because they were treating patients in "non-traditional care areas", or spaces the hospital normally wouldn't use.
The hospital was treating the incident as an "external disaster" and had set up a decontamination bay for patients arriving from the scene, spokeswoman Meaghan Quinn said.
Between 7,000 and 10,000 litres of the hazardous chemical spilled in the crash according to Leeds Township Spokesperson Elaine Mallory, prompting Kingston General Hospital to implement a "Code Orange" protocol to deal with those affected.