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[接上页] Inland waters L. CHEMICAL OXYGEN DEMAND Waste discharges shall not cause the chemical oxygen demand to exceed 30 mg per litre. Inland waters M. DANGEROUS SUBSTANCES (a) Waste discharges shall not cause the concentration of dangerous substances in the water to attain such levels as to produce significant toxic effects in humans, fish or any other aquatic organisms, with due regard to biologically cumulative effects in food chains and to toxicant interactions with each other. (b) Waste discharges of dangerous substances shall Whole Zone not put a risk to any designated beneficial uses of the aquatic environment. Whole Zone Whole Zone N. PHENOL Phenols shall not be present in such quantities as to produce a specific odour, or in concentrations greater than 0.05 mg per litre as C6H5OH. Bathing Beach Subzones O. TURBIDITY No changes in turbidity or other factors arising from waste discharges shall reduce light transmission substantially from the normal level. Bathing Beach Subzones (Enacted 1989) Cap 358O Sched 2 In this statement- "bathing beach subzone" (泳滩分区) means a bathing beach that is specified in the Fourth Schedule to the Public Health and Municipal Services Ordinance (Cap 132) and situated in the Port Shelter Water Control Zone; "fish culture subzone" (鱼类养殖分区) means a fish culture zone that is designated in the Fish Culture Zone (Designation) Order (Cap 353 sub. leg.) and situated in the Port Shelter Water Control Zone; "Ho Chung (A) subzone" (蚝涌(A)分区) means that part of the catchment of the Ho Chung River delineated on the Map and which delineated part is marked HC(A); "Map" (地图) means a 1:25000 map marked PSWCZ by the Secretary for Lands and Works, Lands and Works Branch, on 6 July 1989 and deposited in the Land Registry, Victoria; (8 of 1993 s. 30) "marine waters" (海洋水域) means the waters within the Port Shelter Water Control Zone boundary below the high water mark; "Secondary Contact Recreation Subzone" (次级接触康乐分区) means an area delineated as such on the Map, except where the area is designated as a bathing beach subzone or a fish culture subzone. (Enacted 1989) |