【法规名称】
【法规编号】 79262 什么是编号？
【正 文】
第2页 CAP 358AA STATEMENT OF WATER QUALITY OBJECTIVES (EASTERN BUFFER WATER CONTROL ZONE)
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[接上页] Marine waters Water Gathering Ground Subzones Other inland waters I. AMMONIA The un-ionized ammoniacal nitrogen level should not be more than 0.021 mg per litre, calculated as the annual average (arithmetic mean). Whole zone J. NUTRIENTS (a) Nutrients should not be present in quantities sufficient to cause excessive or nuisance growth of algae or other aquatic plants. (b) Without limiting the generality of objective (a) above, the level of inorganic nitrogen should not exceed 0.4 mg per litre, expressed as annual water column average (arithmetic mean of at least 3 measurements at 1 m below surface, mid-depth and 1 m above seabed). Marine waters Marine waters K. 5-DAY BIOCHEMICAL OXYGEN DEMAND (a) The 5-day biochemical oxygen demand should not exceed 3 mg per litre. (b) The 5-day biochemical oxygen demand should not exceed 5 mg per litre. Water Gathering Ground Subzones Other inland waters L. CHEMICAL OXYGEN DEMAND (a) The chemical oxygen demand should not exceed 15 mg per litre. (b) The chemical oxygen demand should not exceed 30 mg per litre. Water Gathering Ground Subzones Other inland waters M. TOXIC SUBSTANCES (a) Toxic substances in the water should not attain such levels as to produce significant toxic, carcinogenic, mutagenic or teratogenic effects in humans, fish or any other aquatic organisms with due regard to biologically cumulative effects in food chains and to interactions of toxic substances with each other. (b) Human activity should not cause a risk to any beneficial use of the aquatic environment. Whole zone Whole zone (Enacted 1993) |
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