How many hectares burned?
230,000 hectares by Tuesday
Mix of what trees made the recovery take longer?
Boreal forest, aspen, spruce and peatlands
How much CO2?
A few million tonnes
What contaminants made smoke more toxic than usual?
Mobilised contaminants like mercury and other heavy metals, and polycyclic aromatic hydrocarbons deposited on trees and soil
Burning what components added to toxic smoke?
Mercury, lead and organic compounds from cars and houses
How far did smoke travel?
Across the Gulf coast, 3400km away
Which river was there a toxic surge into after the first good rainfall?
Athabasca river
Toxic ash and mountains of … to dispose of
Waste