Canada: Urban gardens may contain lead — here’s what the research says about the hidden health risk
Position your garden away from busy roads, parking areas, railways, waterways and industrial areas.
By Melody Lynch
Adjunct Professor, Geography, Planning and Environment, Concordia University
The Conversation
May 19, 2026
Excerpt:
Lead can occur naturally, but most lead pollution results from human activity, like manufacturing, or from products like batteries.
The use of leaded gasoline has been eliminated around the globe, but historically deposited lead remains in the environment because it does not degrade over time.
Unfortunately, there are no regulations for leaded paint in many global contexts where it is still widely available and used. This contributes to global health inequities.
Furthermore, low-income and racialized communities may experience disproportionate exposure to lead, an example of environmental injustice.
Despite the risk, gardens can be an important source of healthy foods, especially for economically marginalized communities. There are many other benefits too.
When we take care of a garden, research shows this reciprocally enhances individual and community well-being. Gardens can strengthen our immune function, help regulate endocrine responses, support emotional stability and improve psychosocial behaviours, especially among children. They can also foster empathy toward nature and other people.
Source: https://cityfarmer.info/canada-urban-gardens-may-contain-lead-heres-what-the-research-says-about-the-hidden-health-risk/
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