VietnameseQCVN 10:2023/BTNMT on marine water quality
ATTRIBUTE
| Issuing body: | Ministry of Natural Resources and Environment | Effective date: | Known Please log in to a subscriber account to use this function. Don’t have an account? Register here |
| Official number: | QCVN 10:2023/BTNMT | Signer: | Vo Tuan Nhan |
| Type: | Vietnamese Technical Regulation | Expiry date: | Updating |
| Issuing date: | 13/03/2023 | Effect status: | Known Please log in to a subscriber account to use this function. Don’t have an account? Register here |
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NATIONAL TECHNICAL REGULATION ON MARINE WATER QUALITY
Foreword
QCVN 10:2023/BTNMT is compiled by the Department of Environmental Pollution Control, submitted by the Department of Science and Technology and the Department of Legislation for approval, appraised by the Ministry of Science and Technology, and promulgated together with the Circular No. 01/2023/TT-BTNMT dated March 13, 2023 of the Minister of Natural Resources and Environment.
QCVN 10:2023/BTNMT replaces QCVN 10-MT:2015/BTNMT.
NATIONAL TECHNICAL REGULATION ON MARINE WATER QUALITY
1.1. Scope of regulation
1.1.1. This Regulation specifies the limit values of the parameters of marine water quality.
1.1.2. This Regulation applies to the evaluation and control of marine water quality in maritime zones serving the purposes of protecting living environment, human health, and other purposes.
1.2. Subject of application
This Regulation applies to state management agencies in charge of environment, all organizations, residential communities, households, and individuals engaged in activities related to marine water quality in the territory of Vietnam.
1.3. Interpretation of terms
In this Regulation, the terms below shall be construed as follows:
1.3.1. Coastal areas for marine water quality management purpose are the maritime zones (also including lagoon areas) extending seaward 06 nautical miles from the shoreline (approximately 10.8 km).
1.3.2. Inshore areas for marine water quality management purpose are the maritime zones which are measured from the line located more than 06 nautical miles from the shoreline to the line being over 24 nautical miles from the shoreline (approximately 44 km).
1.3.3. Offshore area for marine water quality management purpose are the maritime zones which are measured from the line located more than 24 nautical miles from the shoreline to the outer limits of maritime zones of Vietnam.
1.3.4. Parameters related to living environment protection are the basic parameters that directly affect aquatic life and underwater ecosystems. These parameters are used for frequent and continuous monitoring for assessment of coastal water quality.
1.3.5. Parameters affecting human health are the those that may cause harm to health when marine water is directly used by humans for various purposes.
2.1. Marine water quality for coastal areas:
The limit values of marine water quality parameters for coastal areas are specified in Table 1 and Table 2.
Table 1: The limit values of marine water quality parameters for coastal areas for marine life protection
No. | Parameter | Unit | Limit value |
1 | pH | - | 6.5 - 8.5 |
2 | Dissolved Oxygen (DO) | mg/L | ≥ 5 |
3 | Total Suspended Solids (TSS) | mg/L | 50 |
4 | Total Petroleum Hydrocarbons (TPH) | mg/L | 0.01 |
5 | Total coliform bacteria | MPN or CFU/100mL | 1000 |
Table 2: The limit values of marine water quality parameters for coastal areas for protection of human health and marine ecosystems
No. | Parameter | Unit | Limit value |
1 | Ammonia (NH4+ as Nitrogen) | mg/L | 0.1 |
2 | Phosphate (PO43- as P) | mg/L | 0.2 |
3 | Fluoride (F-) | mg/L | 1.5 |
4 | Cyanide (CN-) | mg/L | 0.01 |
5 | Arsenic (As) | mg/L | 0.02 |
6 | Cadmium (Cd) | mg/L | 0.005 |
7 | Lead (Plumbum) (Pb) | mg/L | 0.05 |
8 | Chromium (VI) (Cr6+) | mg/L | 0.02 |
9 | Total Chromium (Cr) | mg/L | 0.1 |
10 | Copper (Cuprum) (Cu) | mg/L | 0.02 |
11 | Zinc (Zincum) (Zn) | mg/L | 0.1 |
12 | Manganese (Mn) | mg/L | 0.5 |
13 | Iron (Ferrum) (Fe) | mg/L | 0.5 |
14 | Mercury (Hydrargyrum) (Hg) | mg/L | 0.0005 |
15 | Mineral oil and grease | mg/L | 5.0 |
16 | Total Phenol | mg/L | 0.03 |
17 | Aldrin (C12H8Cl6) | µg/L | 0.1 |
18 | Lindane (C6H6Cl6) | µg/L | 0.02 |
19 | Dieldrin (C12H8Cl6O) | µg/L | 0.1 |
20 | Total DDT (1,1'-(2,2,2-Trichloroethane-1,1-diyl) bis(4-chlorobenzene) (C14H9Cl5) | µg/L | 1.0 |
21 | Heptachlor & Heptachlor epoxide (C10H5Cl7 & C10H5Cl7O) | µg/L | 0.2 |
22 | Polychlorinated biphenyl (PCB) | µg/L | 0.5 |
23 | Diazinon (C12H21N2O3PS) | mg/L | 0.02 |
24 | Parathion (C10H14NO5PS) | mg/L | 0.06 |
25 | Malathion (C10H19O6PS2) | mg/L | 0.25 |
26 | 1,1,1-Trichloroethane (C2H3Cl3) | mg/L | 0.1 |
27 | Tetrachloroethylene PCE (C2Cl4) | mg/L | 0.01 |
28 | Trichloroethylene (CH2Cl3) | mg/L | 0.03 |
29 | Dichloromethane (CH2Cl2) | mg/L | 0.02 |
30 | Benzene (C6H6) | mg/L | 0.01 |
31 | Anionic surfactant | mg/L | 0.5 |
2.2. Marine water quality for inshore areas:
The limit values of the parameters of marine water quality at inshore areas are specified in Table 3.
Table 3: Limit values of inshore water quality parameters
No. | Parameter | Unit | Allowable value |
1 | pH | - | 6.5 - 8.5 |
2 | Arsenic (As) | mg/L | 0.010 |
3 | Cadmium (Cd) | mg/L | 0.005 |
4 | Lead (Plumbum) (Pb) | mg/L | 0.050 |
5 | Total Chromium (Cr) | mg/L | 0.100 |
6 | Copper (Cuprum) (Cu) | mg/L | 0.030 |
7 | Zinc (Zincum) (Zn) | mg/L | 0.050 |
8 | Mercury (Hydrargyrum) (Hg) | mg/L | 0.001 |
9 | Cyanide (CN-) | mg/L | 0.005 |
10 | Aldrin (C12H8Cl6) | µg/L | 0.1 |
11 | Lindane (C6H6Cl6) | µg/L | 0.02 |
12 | Dieldrin (C12H8Cl6O) | µg/L | 0.1 |
13 | Total DDT (1,1'-(2,2,2-Trichloroethane-1,1-diyl) bis(4-chlorobenzene) (C14H9Cl5) | µg/L | 1.0 |
14 | Heptachlor & Heptachlor epoxide (C10H5Cl7 & C10H5Cl7O) | µg/L | 0.2 |
15 | Diazinon (C12H21N2O3PS) | mg/L | 0.02 |
16 | Parathion (C10H14NO5PS) | mg/L | 0.06 |
17 | Malathion (C10H19O6PS2) | mg/L | 0.25 |
18 | Total Phenol | mg/L | 0.03 |
19 | Mineral oil and grease | mg/L | 5.0 |
2.3. Marine water quality for offshore areas:
The limit values of marine water quality parameters at offshore areas are specified in Table 4.
Table 4: Limit values of marine water quality parameters for offshore areas
No. | Parameter | Unit | Allowable value |
1 | pH | - | 7.5 - 8.5 |
2 | Arsenic (As) | mg/L | 0.005 |
3 | Cadmium (Cd) | mg/L | 0.001 |
4 | Lead (Plumbum) (Pb) | mg/L | 0.005 |
5 | Total Chromium (Cr) | mg/L | 0.050 |
6 | Copper (Cuprum) (Cu) | mg/L | 0.010 |
7 | Zinc (Zincum) (Zn) | mg/L | 0.020 |
8 | Mercury (Hydrargyrum) (Hg) | mg/L | 0.0002 |
9 | Cyanide (CN-) | mg/L | 0.005 |
10 | Total Phenol | mg/L | 0.030 |
11 | Mineral oil and grease | mg/L | 5.0 |
3.1. The monitoring methods for determination of the concentration values of parameters in marine water shall comply with Table 5 or the technical regulations on environmental monitoring issued by the Ministry of Natural Resources and Environment.
Table 5. Monitoring methods for parameters in marine water
No. | Parameter | Monitoring method, number of the standards |
1 | Taking samples | ISO 5667-9:2015; TCVN 6663-1:2011; TCVN 5998:1995; TCVN 6663-3:2016; TCVN 8880:2011 |
2 | pH | TCVN 6492:2011; US EPA Method 9040 |
3 | Dissolved Oxygen (DO) | TCVN 7325:2016; SMEWW 4500 O.G:2017 |
4 | Total Suspended Solids (TSS) | TCVN 6625:2000; SMEWW 2540D:2017 |
5 | Total Petroleum Hydrocarbons (TPH) | TCVN 10499-2:2015 |
6 | Ammonia (NH4+ as Nitrogen) | TCVN 6179-1:1996; SMEWW 4500-NH3.B&F:2017; SMEWW 4500-NH3.D:2017 |
7 | Phosphate (PO43- as P) | TCVN 6202:2008; TCVN 6494-1:2011; SMEWW 4110B:2017; SMEWW 4110C:2017; SMEWW 4500-P.D:2017; SMEWW 4500-P.E:2017; US EPA Method 300.0 |
8 | Fluoride (F-) | TCVN 6195-1996; TCVN 6494-1:2011; SMEWW 4110.B:2017; SMEWW 4110C:2017; SMEWW 4500-F-.B&C:2017; SMEWW 4500-F-.B&D:2017; US EPA Method 300. |
9 | Cyanide (CN-) | TCVN 6181:1996; SMEWW 4500-CN-.C&E:2017; ISO 14403-2:2017 |
10 | Arsenic (As) | TCVN 6626:2000; ISO 15586:2003; SMEWW 3114B:2017; US EPA Method 1640 |
11 | Cadmium (Cd) | TCVN 6197:2008; ISO 15586:2003; SMEWW 3125B:2017; US EPA Method 200.8; US EPA Method 1640; US EPA Method 200.10; US EPA Method 200.12; US EPA Method 200.13; US EPA Method 6020B |
12 | Lead (Plumbum) (Pb) | US EPA Method 1640; US EPA Method 200.10; US EPA Method 200.13; ASTM D6800-12. |
13 | Chromium (VI) (Cr6+) | SMEWW 3500-Cr.B:2017; US EPA Method 7196A |
14 | Total Chromium (Cr) | TCVN 6222:2008; ISO 15586:2003; SMEWW 3111C:2017; SMEWW 3113B:2017; SMEWW 3125B:2017; US EPA Method 200.8; US EPA Method 6020B |
15 | Copper (Cuprum) (Cu) | TCVN 6193:1996; ISO 15586:2003; SMEWW 3111C:2017; SMEWW 3113B:2017; SMEWW 3125B:2017; US EPA Method 200.8; US EPA Method 1640; US EPA Method 200.10; US EPA Method 200.12; US EPA Method 200.13; US EPA Method 6020B |
16 | Zinc (Zincum) (Zn) | TCVN 6193:1996; ISO 15586:2003; SMEWW 3111C:2017; SMEWW 3113B:2017; SMEWW 3125B:2017; US EPA Method 200.8; US EPA Method 6020B |
17 | Manganese (Mn) | SMEWW 3111B:2017; SMEWW 3113B:2017; SMEWW 3125B:2017; US EPA Method 200.8; US EPA Method 6020B |
18 | Iron (Ferrum) (Fe) | TCVN 6177:1996; ISO 15586:2003; SMEWW 3500-Fe.B:2017; SMEWW 3111B:2017; SMEWW 3113B:2017; US EPA Method 6020B |
19 | Mercury (Hydrargyrum) (Hg) | TCVN 7724:2007; TCVN 7877:2008; SMEWW 3112B:2017 |
20 | Total Dichlorodiphenyltrichloroethane (DDT) (1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane (C14H9Cl5) | TCVN 7876:2008; TCVN 9241:2017; SMEWW 6630B:2017; SMEWW 6630C:2017; US EPA Method 8081B; US EPA Method 8270D |
21 | Dieldrin (C12H8Cl6O) | |
22 | Lindane (C6H6Cl6) | |
23 | Aldrin (C12H8Cl6) | |
24 | Heptachlor & Heptachlor epoxide (C10H5Cl7 & C10H5Cl7O) | |
25 | Total Phenol | TCVN 6216:1996; SMEWW 5530B&C:2017; SMEWW 5530B&D:2017; ISO 14402:1999 |
26 | 1,1,1-Trichloroethane (C2H3Cl3) | US EPA method 551.1; US EPA method 5021A |
27 | Tetrachloroethylene PCE (C2Cl4) | US EPA method 551.1; US EPA method 5021A |
28 | Trichloroethylene (CH2Cl3) | US EPA method 551.1; US EPA method 5021A |
29 | Dichloromethane (CH2Cl2) | US EPA method 432; US EPA method 5021A |
30 | Benzene (C6H6) | US EPA method 5021A |
31 | Mineral oil and grease | SMEWW 5520B&F:2017; SMEWW 5520C&F:2017 |
32 | Total coliform bacteria | SMEWW 9221B:2017; TCVN 6187-2:2020 |
3.2. In addition to the monitoring methods specified in Section 3.1, monitoring results from marine water quality monitoring devices operating continuously and automatically shall be accepted if such devices have been recognized by international conformity evaluation organizations in accordance with the law regulations.
4.1. The periodic, or automatic and continuous monitoring of marine water quality and the use of monitoring results to directly provide and publicize information on environmental quality to the community must be performed by organizations that satisfy the requirements and conditions regarding environmental monitoring capacity as specified by law regulations.
4.2. The periodic monitoring of marine water quality must be based on the monitoring objectives to select appropriate monitoring parameters.
5. ORGANIZATION OF IMPLEMENTATION
5.1. State management agencies in charge of environment shall be responsible for guiding, examining and supervising the implementation of this Regulation.
5.2. In the case where the documents mentioned in this Regulation are amended, supplemented or replaced, the new ones shall apply.
VIETNAMESE DOCUMENTS
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