Threat LensChemicalQuebec adopts new regulation for "forever chemicals" in biosolids

Quebec adopts new regulation for “forever chemicals” in biosolids

Type of event:
Chemical risk, Public health

Victims

Wounded

Date

March 18, 2025

What happened

Quebec has set new standards for the presence and concentration of PFAS, also known as “forever chemicals”, in fertilizing residue materials. PFAS are a class of chemicals used in several products, including food containers and natural fertilizers. Quebec’s new regulation for their management in fertilizing residue materials, sometimes known as biosolids and used to provide nutrients to farmland, aims to reduce environmental and health risks. It considers 13 types of substances and includes monitoring guidelines. The 13 substances serve as indicators of the chemical’s presence in the fertilizing residual materials. According to Grant Clark, associate professor of bio engineering at McGill University, the exact criteria behind the inclusion of substances in the list is unclear. However, it may be determined by their potential toxicity.
Quebec and Canada have legislated the use of biosolids long ago, but the risk posed by potentially hazardous materials like PFAS is forcing them to look for new ways to apply them without compromising public safety. Earlier this month, the Canadian federal government also announced its intention to add PFAS to the official list of toxic substances. Studies have linked them to several health conditions, including cancer and reproductive issues. The qualities that make them useful also make them persistent in the environment, with serious consequences for water sources, animals, and humans.

Where it happened

Main sources