Table C: Organic Compounds Compound Maximum Remarks in this column are for Concentration guidance only. g/m 3 personnel. Phenolic Compounds - 50 Phenols may adversely affect biological (as phenols) treatment processes. They may not be excluding chlorinated phenols completely removed by conventional treatment and subsequently impact on the environment. Chlorinated Phenols 0.02 Chlorinated phenols can adversely affect biological treatment process and may impair the quality of the receiving environment. Petroleum Hydrocarbons 30 Petroleum hydrocarbons may adversely affect the safety of operations & maintenance personnel. Halogenated Aliphatic 1 Because of their stability and chemical Compounds+ properties these compounds: may adversely affect the treatment processes. - may impair the quality of the receiving environment. - may adversely affect the safety of operations & maintenance personnel, Monocyclic Aromatic 5 These compounds (also known as Hydrocarbons benzene series) are relatively insoluble in water, and are normally not a problem in tradewaste. They may be carcinogenic and may adversely affect the safety of operations maintenance personnel. Polycyclic (or polynuclear) 0.05 Many of these substances have been Aromatic Hydrocarbons (PAHs) demonstrated to have an adverse effect on the health of animals; some are also persistent and are not degraded by conventional treatment processes. Halogenated Aromatic 0.002 Because of their stability, persistence Hydrocarbons (HAHs) and ability to bio-accumulate in animal Polychlorinated Biphenyls (PCBs) 0.002 tissue these compounds have been Polybrominated Biphenyls (PBBs) 0.002 severely restricted by health and environmental regulators. Pesticides (general )+ Pesticides: (includes insecticides, herbicides, 0.2 in total may adversely affect the treatment fungicides and excludes processes. organophosphate, organochlorine may impair the quality of the and any pesticides not registered receiving environment. for use in New Zealand) may adversely affect the safety of operations & maintenance personnel. Organophosphate Pesticides* + 0.1 * Excludes pesticides not registered for use in New Zealand. + These compounds shall be accepted up to the given maximum concentration only when specifically approved. Page 21