Chapter 3 Arsenic, cadmium, nickel, mercury, benzo(a)pyrene and other polycyclic aromatic hydrocarbons

1. 10Assessment thresholds
2. 11Assessment criteria
3. 12Location and number of sampling points
4. 13Monitoring of polycyclic aromatic hydrocarbons
5. 14Background monitoring
6. 15Data quality objectives
7. 16Reference methods for sampling and analysis