This standard has been replaced by the new one: GWZB1-1999: Environmental Quality Standard for Surface Water
NATIONAL STANDARD OF PEOPLE'S REPUBLIC OF CHINA
亲子阅读读后感 UDC 614.7
(083.75)
Environmental Quality Standard
for Surface Water GB 3838-88
This standard was formulated in accordance with the People's Republic of China Trial Environmental Law and the Water Pollution Prevention Law for the purpo of controlling water pollution and protecting water resources.
This standard applies to surface water areas such as rivers, lakes and rervoirs within the territory of the People's Republic of China.
1. Classification of Water Areas
Surface water areas are divided into five types bad on their u and protection objectives:
人生风景 Type I Water sources and national nature rerves.
Type II Class I protection zones for drinking water sources, protection zones for valuable fish and spawning grounds.
Type III Class II protection zones for drinking water sources, general protection zones for fish and swimming areas.
Type IV General industrial water zones and water recreation areas where no direct contact with humans occurs.
Type V Agricultural water zones and scenic water areas.
Multi-purpo water zones are classified bad on their primary function. Seasonal wa
ter zones are classified bad on a asonal basis.
Table 1
Environmental Quality Standard for Surface Water
mg/L
No. | Parameters | I | II | III | IV | V |
| basic requirements | Water bodies should not contain the following man-made substances: a. offensive deposits b. unpleasant floating matter such as fragments, scum, oil and other such materials c. offensive colors, smells or turbidity d. substances that are harmful, toxic or cau unhealthy physiological reactions in humans, animals or plants e. substances that cau the proliferation of offensive aquatic organisms |
1 | water temperature oC | man-made water temperature variations should adhere to the limits below: Summer: maximum weekly average increa 1 Winter: maximum weekly average decrea 2 |
2 | Ph | 6.5-8.5 | 6-9 |
3 | sulfate (SO42-)* | < 250 | 250 | 250 | 250 | 250 |
4 | chloride (Cl-)* | < 250 | 250 | 250 | 250 | 250 |
5 | dissolved iron* | < 0.3 | 0.3 | 0.5 | 0.5 | 1.0 |
6 | total mangane* | < 0.1 | 0.1 | 0.1 | 0.5 | 1.0 |
7 | total copper* | < 0.01 | 1.0(0.01/ fishery) | 1.0(0.01/fishery) | 1.0 | 1.0 |
8 | total zinc* | 0.05 | 1.0(0.01/ fishery) | 1.0(0.01/fishery) | 2.0 | 2.0 |
9 | nitrate (N) | < 10 | 10 | 带鹏字的成语20 | 20 | 25 |
10 | nitrite (N) | 0.06 | 0.1 | 0.15 | 1.0 | 1.0 |
11 | non-ionic ammonia | 0.02 | 0.02 | 0.02 | 0.2 | 0.2 |
12 | Kjeldahl nitrogen | 0.5 | 0.5 | 1 | 2 | 2 |
13 | total phosphorus | 0.02 | 0.1(0.025/ lake and rervoir) | 0.1(0.05/lake and rervoir) | 0.2 | 0.2 |
14 | permanganate index | 2 | 4 | 6 | 8 | 10 |
15 | dissolved oxygen | 90%(satu-ration) | 6 | 5 | 3 | 2 |
16 | COD成群结队造句Cr | < 15 | < 15 | 15 | 20 | 25 |
17 | BOD5 | < 3 | 3 | 4 | 6 | 10 |
18 | fluoride (F-) | < 1.0 | 1.0 | 1.0 | 1.5 | 1.5 |
| | | | | | |
19 | lenium (As4+) | < 0.01 | 0.01 | 0.01 | 0.02 | 0.02 |
20 竹荪的做法大全 | total arnic | 0.05 | 0.05 | 0.05 | 0.1 | 0.1 芦荟如何美容 |
21 | total mercury** | 0.00005 | 0.00005 | 0.0001 | 0.0001 | 0.0001 |
22 | total cadmium*** | 0.001 | 0.005 | 0.005 | 0.005 | 0.01 |
23 | chromium (Cr6+) | 0.001 | 0.005 | 0.005 | 0.005 | 0.01 |
24 | total lead** | 0.01健身音乐100首 | 0.05 | 0.05 | 0.05 | 0.1 |
25 | total cyanide | 0.005 | 0.05(0.005/fishery) | 0.2(0.005/fishery) | 0.2 | 0.2 |
26 | volatile phenol** | 0.002 | 0.002 | 0.005 | 0.01 | 0.1 |
27 | oil手足口传播途径**(extracted from petroleum ether) | 0.05 | 0.05 | 0.05 | 0.5 | 1.0 |
28 | anionic surfactant | < 0.2 | 0.2 | 0.2 | 0.3 | 0.3 |
29 | coli-index***(/L) | | | 10,000 | | |
30 | benzo(a) pyrene ( g/L) | 0.0025 | 0.0025 | 0.0025 | | |
| | | | | | |
Note: * Items that can be justified bad on local water quality parameters.
** Minimum values monitored through analytical methods which cannot meet basic requirements.
*** Trial standards.
2. Water Quality Requirements
Different types of water areas should adhere to different parameters. Water quality in the five types of surface water areas should adhere to standards listed in Table 1.
2.1 Instantaneous monitoring results are not applicable to this standard.
2.2 If one monitored item is above standard, water usage cannot be guaranteed. The verity of contamination should be assd bad on background parameters, data on aquatic organisms, corrected equations for hardness and other relevant criteria.
3. Standard Implementation
3.1 All levels of environmental protection departments and water resource protection departments are responsible for supervision and implementation of this standard.
3.2 After obtaining approval from provincial, autonomous region or municipal authorities, local environmental protection departments together with relevant departments such as urban construction, water conrvation, hygiene and agriculture are responsible for the management and classification of local water areas bad on overall plans for watersheds together with usage requirements.
3.3 In evaluating the capacities of different water bodies, the values ud should generally not be lower than their prent capacities. If prent capacities need to be lowered, technical and economic studies should be conducted first, and the results should be reported to higher authorities for approval.
3.4 Mixing areas near wastewater outlets must not effect the migratory channels of fish or the water quality of surrounding areas.
3.5 All levels of fishery administrative departments are responsible for supervision and management of fishery waters bad on the TJ 35-79 Water Quality Standard for Fisheries. All levels of quarantine departments are responsible for supervision and management of domestic drinking water intake points bad on GB 5749-85 Hygiene Standard for Drinking Water. Radioactive indexes should adhere to GB 8703-88 Regulations for Radiation Protection.
