A number of organic substances have been selected by the Environment Agency for review within this report. These have been selected on the basis of their toxicity to humans and occurrence on sites with land contamination. This report discusses these substances or group of substances in separate chapters. The contaminants considered are:
- Polycyclic aromatic hydrocarbons (PAHs);
- Chlorinated solvents, specifically vinyl chloride, 1,2-dichloroethane, 1,1,1- trichloroethane, trichloroethene, tetrachloroethene, tetrachloroethane, carbon tetrachloride;
- Benzene, toluene, ethyl benzene and xylenes (BTEX); and
- Monohydric phenol (phenol).