A toxic tort is a civil claim alleging that exposure to a harmful substance - such as chemicals, dust, fumes, asbestos, lead, pesticides, or contaminated water - caused illness, injury, or death.

These cases often grow out of work sites, consumer products, spills, industrial emissions, or unsafe buildings. Unlike a simple accident, the harm may build slowly and show up months or years later as cancer, lung disease, nerve damage, reproductive problems, or chronic skin conditions. A toxic tort case usually turns on proof: what the substance was, how much exposure happened, how long it lasted, and whether medical evidence can connect that exposure to the person's condition. That can involve causation, negligence, strict liability, or a failure-to-warn claim.

For an injury claim, the label matters because toxic exposure cases are evidence-heavy and often harder to pin down than a crash or fall. Medical records, job history, air testing, safety data sheets, and expert opinions can make or break the case. In Michigan, many personal injury claims are subject to a 3-year filing deadline under the Revised Judicature Act, MCL 600.5805 (2024), but toxic exposure cases can raise difficult questions about when the injury was or should have been discovered. Missing that timing issue can mean losing the right to recover damages entirely.