Legal cannabis in California found contaminated with pesticides

A joint investigation by the Los Angeles Times and WeedWeek reveals widespread pesticide contamination in cannabis products sold across California dispensaries.

Paige St. John and Alex Halperin report for the Los Angeles Times and WeedWeek.


In short:

  • Tests on 42 cannabis products found 25 contained pesticide levels exceeding state or federal limits.
  • Contaminants included chemicals linked to cancer, liver failure, and neurological harm, posing long-term health risks.
  • California regulators have been slow to address these issues, despite numerous complaints and evidence of contamination.

Key quote:

“California is dropping the ball on enforcement where public health is concerned.”

— Cindy Orser, cannabis researcher

Why this matters:

With an estimated 5 million Californians using cannabis monthly, contaminated products could lead to serious health issues, particularly for medical users and young adults who consider vaping a safer alternative. Read more: As legal cannabis spreads, growers go organic — and beyond.

About the author(s):

EHN Curators
EHN Curators
Articles curated and summarized by the Environmental Health News' curation team. Some AI-based tools helped produce this text, with human oversight, fact checking and editing.

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