New Zealand thresholds
- Dan Hansen
- Mar 7
- 1 min read
Methamphetamine Contamination Thresholds: New Zealand has established guidelines for methamphetamine contamination in residential properties. In 2010, the Ministry of Health recommended a decontamination limit of 0.5 µg/100 cm². This threshold was later increased to 1.5 µg/100 cm² in 2017 to balance health risks with practical remediation considerations.