People often reach out after one of these triggers:
- A cancer diagnosis or other serious illness following years of weed control at home or on nearby properties.
- Persistent symptoms that lead to more testing, referrals, and a search for possible environmental causes.
- Workplace exposure in roles that involve maintaining landscaping, grounds, or agricultural-adjacent areas around facilities.
- Secondhand exposure—such as residue on clothing, tools, or work gear that gets brought into a home.
In Riverside, many residents manage properties seasonally and may use weed killers during hotter months and dry periods. That doesn’t automatically mean a product caused harm, but it does make documentation of when and how chemicals were used particularly important.


