Globally, and particularly in Australia, there is growing concern about methamphetamine exposure from contaminated properties. Methamphetamine smoke can settle on surfaces and persist long-term, posing health risks to current and future occupants. Current guidelines set a surface concentration threshold of 0.05 µg/100 cm², though this was established with limited consideration of inhalation exposure. This project investigated real-world smokehouses, some of which were later identified as former clandestine laboratories.
