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City's Snow Mountains Hide Toxic Secret
11 Mar
Summary
- Massive snow piles in Toronto contain toxic road salt, oil, and antifreeze.
- Snow mountains reach nearly 100ft, posing a risk to aquatic ecosystems.
- Salt concentrations in local waterways are alarmingly high, exceeding guidelines.
Toronto is grappling with an unusual environmental hazard: colossal mountains of snow mixed with toxic substances. Following severe winter storms, the city has accumulated vast piles of snow, some reaching nearly 100 feet high, resembling industrial quarries. These snow masses are a cocktail of road salt, antifreeze, and oil, creating a significant risk.
The sheer volume of snow removed from roads and sidewalks necessitates trucking it to urban outskirts. These snow mountains, some covering two acres, are actively reduced by industrial melters. However, the melting process releases contaminants, particularly salt, into local waterways. This poses a substantial threat to aquatic ecosystems, with recent tests revealing lethal chloride levels in many tested sites.
Experts express concern over increasing salt concentrations in rivers and lakes, a trend projected to continue due to climate change leading to more extreme weather events. Even if salt application ceases, it will take years, possibly decades, for the environment to recover. The challenge lies in balancing immediate public safety from snow removal with the long-term ecological impact.
