CEPIS/OPS- Pollution limits for discharge of tennery effluents into water bodies and sewers

NETHERLANDS Parameter	Surface	Sewer
pH Temperature ºC Suspended solids mg/l Settleable solids ml/l BOD5 mg 02/l COD mg/l	6.5-8.5 30 80 5 *	6.5-10.0 30 * * *
Sulphide mg S2-/l Chrome (lll) mg/l Chrome (IV) mg/l Chrome total mg/l	* none 0.05	* 1 none 2
Chlorides mg/l Sulphates mg/l Ammonia mg N/l TNK mg N/l Oil/grease mh/l Phenols mg/l	200 150 * 3 *	* 300 * *
Solvents mg/l: Hydrocarbons mg/l Nitrogenous mg/l Chlorimated mg/l	none	none

NEW ZEALAND Parameter	Surface	Sewer
pH Temperature ºC Suspended solids mg/l Settleable solids ml/l BOD5 mg 02/l COD mg/l		6.0-9.0 55
Sulphide mg S2-/l Chrome (lll) mg/l Chrome (IV) mg/l Chrome total mg/l		1.5 5-50
Chlorides mg/l Sulphates mg/l Ammonia mg N/l TNK mg N/l Oil/grease mh/l Phenols mg/l
Solvents mg/l: Hydrocarbons mg/l Nitrogenous mg/l Chlorimated mg/l

PAKISTAN Parameter	Surface	Sewer
pH Temperature ºC Suspended solids mg/l Settleable solids ml/l BOD5 mg 02/l COD mg/l	6.0-9.0 40 200 80 150	6.0-9.0
Sulphide mg S2-/l Chrome (lll) mg/l Chrome (IV) mg/l Chrome total mg/l	1 1
Chlorides mg/l Sulphates mg/l Ammonia mg N/l TNK mg N/l Oil/grease mh/l Phenols mg/l
Solvents mg/l: Hydrocarbons mg/l Nitrogenous mg/l Chlorimated mg/l