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

ITALY Parameter	Surface	Sewer
pH Temperature ºC Suspended solids mg/l Settleable solids ml/l BOD5 mg 02/l COD mg/l	5.9-9.5 30-35 40-80 40 160	5.5-9.5 30-35 200 250 500
Sulphide mg S2-/l Chrome (lll) mg/l Chrome (IV) mg/l Chrome total mg/l	1 0.2 2	2 4 0.2 4
Chlorides mg/l Sulphates mg/l Ammonia mg N/l TNK mg N/l Oil/grease mh/l Phenols mg/l	1000 1000 10-15 20 0.5	1200 1000 30 40 1
Solvents mg/l: Hydrocarbons mg/l Nitrogenous mg/l Chlorimated mg/l	0.2 0.1 1	0.4 0.2 2

JAPAN Parameter	Surface	Sewer
pH Temperature ºC Suspended solids mg/l Settleable solids ml/l BOD5 mg 02/l COD mg/l	5.0-9.0 300 160 160	5.0-9.0 200-300 160 160
Sulphide mg S2-/l Chrome (lll) mg/l Chrome (IV) mg/l Chrome total mg/l	2 2	2 2
Chlorides mg/l Sulphates mg/l Ammonia mg N/l TNK mg N/l Oil/grease mh/l Phenols mg/l	30-50 5	30-50 5
Solvents mg/l: Hydrocarbons mg/l Nitrogenous mg/l Chlorimated mg/l

KENYA 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 25 30 20 0.5	6.0-9.0 300 450
Sulphide mg S2-/l Chrome (lll) mg/l Chrome (IV) mg/l Chrome total mg/l	1
Chlorides mg/l Sulphates mg/l Ammonia mg N/l TNK mg N/l Oil/grease mh/l Phenols mg/l	trace 2	3000 100 100 100
Solvents mg/l: Hydrocarbons mg/l Nitrogenous mg/l Chlorimated mg/l