Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
All technical contents of this standard are compulsory.
This standard is a revision of DB 4427-1989 Emission standard of air pollutants.
The following main changes have been made with respect to DB 4427-1989:
——This standard is developed in accordance with GB/T 1.1-2000;
——The scope of application is defined;
——The terms and definitions are added;
——The division of control areas is adjusted;
——The year limit is used;
——The maximum acceptable emission rate and fugitive emission concentration threshold are added to the indicator system;
——The emission of air pollutants from thermal power plants, boilers and cement plants is strictly controlled as appropriate;
——18 new control items are added; hydrogen sulfide and carbon disulfide are deleted, and the emission of benzene, toluene and xylene are specified respectively;
——The maximum acceptable emission concentration of sulfur dioxide, fluoride, chlorine, lead and its compounds, cadmium and its compounds, nitrobenzoates and other items is strictly controlled as appropriate;
——The maximum acceptable emission concentration of nitrogen oxides and hydrogen chloride is appropriately relaxed;
——Monitoring requirements and analysis methods are provided.
Annex A and Annex B of this standard are normative.
This standard was proposed by Guangdong Environmental Protection Bureau.
This standard was approved by the People's Government of Guangdong Province.
Drafting organization of this standard: Guangdong Environmental Monitoring Center
Chief drafters of this standard: Liu Jun, Liu Yangzhen, Liang Zhiguang.
This standard was firstly issued in 1989, and this edition is the first revision.
Introduction
This standard is formulated with a view to controlling air pollution, protecting atmospheric environment, guaranteeing human health, maintaining ecological balance, and promoting economic and social development, in accordance with the Environmental Protection Law of the People's Republic of China, the Law of the People's Republic of China on the Prevention and Control of Atmospheric Pollution and relevant regulations, and in combination with actual conditions in Guangdong Province.
This standard replaces DB4427-1989 Emission standard of air pollutants.
DB4427-1989 shall be abolished from the implementation date of this standard.
Emission limits of air pollutants
1 Scope
This standard specifies the emission limits of 37 kinds of air pollutants from stationary pollution sources by years, and various requirements in the executive standards.
This standard is applicable to the emission management of air pollutants from existing pollution sources, environmental impact assessment on construction projects, design of environmental protection facilities for construction projects, completion acceptance and emission management after putting into operation in industries such as treatment of malodorous substances, automobile, motorcycle, industrial furnace, coke oven, hazardous waste incineration, domestic waste incineration, and catering in Guangdong.
Tables 1 and 2 of this standard are applicable to process waste gases.
Tables 3 and 4 of this standard are applicable to various pulverized coal boilers for power generation and circulating fluidized bed power generating boilers and fuel-fired and gas-fired power generating boilers with an output per unit of 65 t/h or more.
Tables 5, 6, 7 and 8 of this standard are applicable to coal-fired, fuel-fired and gas-fired boilers of various capacities and for various purposes, and boilers using sugarcane, sawdust, rice husks, bark and other fuels, except for coal-fired power generating boilers and boiling, fuel-fired and gas-fired power generating boilers with an output per unit of 65 t/h or more, for which the maximum acceptable emission concentration of air pollutants from coal-fired boilers shall apply.
Tables 9, 10 and 11 of this standard are applicable to cement plants.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions, of any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest editions apply.
GB 3095 Ambient air quality standard
GB 5468 Measuring method for smoke and dust of boiler emission
GB 9137 Maximum allowable concentration of pollutants in atmosphere for protection crops
GB/T 16157 The determination of particulates and sampling methods of gaseous pollutants emitted from exhaust gas of stationary source
HJ/T 55 Technical guidelines for fugitive emission monitoring of air pollutants
Monitoring technical specification on completion acceptance of environment protection facilities for construction project (Trial)
Other monitoring and analysis methods are shown in Table 12.
3 Terms and definitions
For the purposes of this standard, the following terms and definitions apply.
3.1
standard state
a state at which the temperature is 273K and the pressure is 101 325 Pa. Standard values specified in this standard are benchmarked against the dry air under standard condition.
3.2
maximum acceptable emission concentration
a limit which shall not be exceeded by the average pollutant concentration in any one hour in the emission pipe after treatment, or a limit which shall not be exceeded by the average pollutant concentration in any one hour in the emission pipe without treatment facilities
3.3
maximum acceptable emission rate
a limit of maximum mass of pollutants emitted in any one hour by an emission pipe at a certain height
3.4
fugitive emission
any leakage of smoke, productive dust and other harmful pollutants without passing through a chimney or an exhaust system
3.5
fugitive emission monitoring point
a monitoring point set up for identifying if the fugitive emission exceeds the limit
3.6
monitoring concentration threshold of fugitive emission
a limit which shall not be exceeded by the average pollutant concentration at the monitoring point in any one hour
3.7
pollution source
facilities or building structures that emit air pollutants
3.8
unit border
boundary between the unit and the external environment, which shall generally be determined in accordance with legal procedures; if no legal procedures are available, it is determined by the current actual boundary
3.9
fugitive emission source
facilities with fugitive emissions that are set up in an open environment (or a building with roof only but no walls)
3.10
emission pipe height
height from the ground level where the emission pipe (or its main building structure) is located to the outlet of the emission pipe
3.11
dust emission initial concentration
dust emission concentration at the outlet of boiler fuel gas or before entering the purification unit
3.12
excess air coefficient
ratio of actual air consumption to theoretical air demand during fuel burning, which is expressed by "∝"
4 Technical contents
4.1 Indicator system
4.1.1 This standard has the following three indicators:
a) maximum acceptable emission concentration of pollutants emitted from emission pipe;
b) maximum acceptable emission rate of pollutants emitted from emission pipe, as specified by the emission pipe height;
c) fugitive emission monitoring point and corresponding monitoring concentration of pollutants from fugitive emission.
4.1.2 All emission pipes shall comply with the requirements of item a and item b of 4.1.4. Any case in which one of the two items is exceeded is considered excessive emission.
4.2 Division of control areas and classification of emission rate standards
4.2.1 Division of control areas
According to GB 3095, the ambient air quality function areas in Guangdong are divided into the following three classes:
a) Class I control area, which refers to Class I area divided according to GB 3095;
b) Class II control area, which refers to Class II area divided according to GB 3095;
c) Class III control area, which refers to Class III area divided according to GB 3095.
4.2.2 Classification of emission rate standards
4.2.2.1 Level I standards shall apply to pollution sources located in Class I control area. Except for non-operating life stoves, new and extended pollution sources are forbidden in Class I control area, and Level I standards in the first period shall apply to renovation of existing sources, and the total emission of pollutants shall not be increased.
4.2.2.2 Level II standards shall apply to pollution sources located in Class II control area.
4.2.2.3 Level III standards shall apply to pollution sources located in Class III control area.
4.3 Standard values
4.3.1 Time division
4.3.1.1 Limits for the project (the boiler is completed and used) in the first period before January 1, 2002.
4.3.1.2 Limits for the project (the boiler is completed and used) in the second period from January 1, 2002.
4.3.1.3 The construction time of the projects shall be based on the environmental impact report, the report form and the date of approval of the registration form; the time of completion and use of the boiler shall be based on the date of acceptance of the project.
4.3.2 Process waste gas
4.3.2.1 The process waste gas emitted from projects constructed in the first period shall be subject to the limits specified in Table 1.
4.3.2.2 The process waste gas emitted from projects constructed in the second period shall be subject to the limits specified in Table 2.
4.3.2.3 The emission pipe height shall not only comply with the emission rate limits given in these tables, but also be more than 5 m higher than the buildings within 200-meter radius from the pipe, or otherwise it shall comply with 50% of the emission rate limit corresponding to its height.
4.3.2.4 If the distance between two emission pipes that emit the same pollutants (whether they are produced by the same production process) is less than the sum of their geometric heights, they shall be considered as one equivalent emission pipe. If more than three closely arranged emission pipes emit the same pollutant, the equivalent emission pipe of the first two emission pipes shall be adopted to calculate the equivalent value with the third one and then the fourth one in sequence. See Annex A for the calculation method of relevant parameters of equivalent emission pipe.
4.3.2.5 If the height of an emission pipe is between the two values listed in this standard, the maximum acceptable emission rate applied is calculated with interpolation method (see Annex B for the formula of interpolation method); if it is greater or less than the maximum or minimum value listed in this standard, the maximum acceptable emission rate applied is calculated with extrapolation method (see Annex B for the formula of extrapolation method).
4.3.2.6 After the issuance of this standard, emission pipe of new project shall generally be not lower than 15 m. If it has to be, its emission rate limit is subject to 50% of the rate calculated with extrapolation method of 4.3.2.5.
4.3.2.7 After the issuance of this standard, fugitive emission of new project shall be under strict control, and generally there shall be no fugitive emission; if inevitable, fugitive emission shall comply with the limits specified in Table 2.
4.3.2.8 If exhaust from industrial production is indeed required to be burned and emitted, the blackness of smoke shall not exceed Ringelmann Level 1.
Foreword i Introduction 1 Scope 2 Normative references 3 Terms and definitions 4 Technical contents 4.1 Indicator system 4.2 Division of control areas and classification of emission rate standards 4.3 Standard values 5 Monitoring 5.1 Sampling 5.2 Sampling point 5.3 Time and frequency 5.4 Monitoring and analysis requirements 5.5 Determination of air displacement 5.6 Analysis methods 5.7 Flue gas continuous monitoring device 6 Standard implementation Annex A (Normative) Calculation of relevant parameters of equivalent emission pipe Annex B (Normative) Interpolation and extrapolation to determine the maximum acceptable emission rate of an emission pipe Table 1 Emission limits of air pollutants from process waste gas (First period) Table 2 Emission limits of air pollutants from process waste gas (second period) Table 3 Maximum acceptable emission limits of air pollutants from thermal power plant Table 4 Coefficient P and m Table 5 Maximum acceptable emission limits of air pollutants from boilers Table 6 Dust initial emission concentration limits Table 7 Minimum acceptable height of boiler chimney Table 8 Conversion by excess air coefficient Table 9 Maximum acceptable emission limits for air pollutant in cement plants (first period) Table 10 Maximum acceptable emission limits for air pollutants in cement plants (second period) Table 11 Minimum acceptable height of cement plant chimney (emission pipe) Table 12 Analysis method
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
All technical contents of this standard are compulsory.
This standard is a revision of DB 4427-1989 Emission standard of air pollutants.
The following main changes have been made with respect to DB 4427-1989:
——This standard is developed in accordance with GB/T 1.1-2000;
——The scope of application is defined;
——The terms and definitions are added;
——The division of control areas is adjusted;
——The year limit is used;
——The maximum acceptable emission rate and fugitive emission concentration threshold are added to the indicator system;
——The emission of air pollutants from thermal power plants, boilers and cement plants is strictly controlled as appropriate;
——18 new control items are added; hydrogen sulfide and carbon disulfide are deleted, and the emission of benzene, toluene and xylene are specified respectively;
——The maximum acceptable emission concentration of sulfur dioxide, fluoride, chlorine, lead and its compounds, cadmium and its compounds, nitrobenzoates and other items is strictly controlled as appropriate;
——The maximum acceptable emission concentration of nitrogen oxides and hydrogen chloride is appropriately relaxed;
——Monitoring requirements and analysis methods are provided.
Annex A and Annex B of this standard are normative.
This standard was proposed by Guangdong Environmental Protection Bureau.
This standard was approved by the People's Government of Guangdong Province.
Drafting organization of this standard: Guangdong Environmental Monitoring Center
Chief drafters of this standard: Liu Jun, Liu Yangzhen, Liang Zhiguang.
This standard was firstly issued in 1989, and this edition is the first revision.
Introduction
This standard is formulated with a view to controlling air pollution, protecting atmospheric environment, guaranteeing human health, maintaining ecological balance, and promoting economic and social development, in accordance with the Environmental Protection Law of the People's Republic of China, the Law of the People's Republic of China on the Prevention and Control of Atmospheric Pollution and relevant regulations, and in combination with actual conditions in Guangdong Province.
This standard replaces DB4427-1989 Emission standard of air pollutants.
DB4427-1989 shall be abolished from the implementation date of this standard.
Emission limits of air pollutants
1 Scope
This standard specifies the emission limits of 37 kinds of air pollutants from stationary pollution sources by years, and various requirements in the executive standards.
This standard is applicable to the emission management of air pollutants from existing pollution sources, environmental impact assessment on construction projects, design of environmental protection facilities for construction projects, completion acceptance and emission management after putting into operation in industries such as treatment of malodorous substances, automobile, motorcycle, industrial furnace, coke oven, hazardous waste incineration, domestic waste incineration, and catering in Guangdong.
Tables 1 and 2 of this standard are applicable to process waste gases.
Tables 3 and 4 of this standard are applicable to various pulverized coal boilers for power generation and circulating fluidized bed power generating boilers and fuel-fired and gas-fired power generating boilers with an output per unit of 65 t/h or more.
Tables 5, 6, 7 and 8 of this standard are applicable to coal-fired, fuel-fired and gas-fired boilers of various capacities and for various purposes, and boilers using sugarcane, sawdust, rice husks, bark and other fuels, except for coal-fired power generating boilers and boiling, fuel-fired and gas-fired power generating boilers with an output per unit of 65 t/h or more, for which the maximum acceptable emission concentration of air pollutants from coal-fired boilers shall apply.
Tables 9, 10 and 11 of this standard are applicable to cement plants.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions, of any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest editions apply.
GB 3095 Ambient air quality standard
GB 5468 Measuring method for smoke and dust of boiler emission
GB 9137 Maximum allowable concentration of pollutants in atmosphere for protection crops
GB/T 16157 The determination of particulates and sampling methods of gaseous pollutants emitted from exhaust gas of stationary source
HJ/T 55 Technical guidelines for fugitive emission monitoring of air pollutants
Monitoring technical specification on completion acceptance of environment protection facilities for construction project (Trial)
Other monitoring and analysis methods are shown in Table 12.
3 Terms and definitions
For the purposes of this standard, the following terms and definitions apply.
3.1
standard state
a state at which the temperature is 273K and the pressure is 101 325 Pa. Standard values specified in this standard are benchmarked against the dry air under standard condition.
3.2
maximum acceptable emission concentration
a limit which shall not be exceeded by the average pollutant concentration in any one hour in the emission pipe after treatment, or a limit which shall not be exceeded by the average pollutant concentration in any one hour in the emission pipe without treatment facilities
3.3
maximum acceptable emission rate
a limit of maximum mass of pollutants emitted in any one hour by an emission pipe at a certain height
3.4
fugitive emission
any leakage of smoke, productive dust and other harmful pollutants without passing through a chimney or an exhaust system
3.5
fugitive emission monitoring point
a monitoring point set up for identifying if the fugitive emission exceeds the limit
3.6
monitoring concentration threshold of fugitive emission
a limit which shall not be exceeded by the average pollutant concentration at the monitoring point in any one hour
3.7
pollution source
facilities or building structures that emit air pollutants
3.8
unit border
boundary between the unit and the external environment, which shall generally be determined in accordance with legal procedures; if no legal procedures are available, it is determined by the current actual boundary
3.9
fugitive emission source
facilities with fugitive emissions that are set up in an open environment (or a building with roof only but no walls)
3.10
emission pipe height
height from the ground level where the emission pipe (or its main building structure) is located to the outlet of the emission pipe
3.11
dust emission initial concentration
dust emission concentration at the outlet of boiler fuel gas or before entering the purification unit
3.12
excess air coefficient
ratio of actual air consumption to theoretical air demand during fuel burning, which is expressed by "∝"
4 Technical contents
4.1 Indicator system
4.1.1 This standard has the following three indicators:
a) maximum acceptable emission concentration of pollutants emitted from emission pipe;
b) maximum acceptable emission rate of pollutants emitted from emission pipe, as specified by the emission pipe height;
c) fugitive emission monitoring point and corresponding monitoring concentration of pollutants from fugitive emission.
4.1.2 All emission pipes shall comply with the requirements of item a and item b of 4.1.4. Any case in which one of the two items is exceeded is considered excessive emission.
4.2 Division of control areas and classification of emission rate standards
4.2.1 Division of control areas
According to GB 3095, the ambient air quality function areas in Guangdong are divided into the following three classes:
a) Class I control area, which refers to Class I area divided according to GB 3095;
b) Class II control area, which refers to Class II area divided according to GB 3095;
c) Class III control area, which refers to Class III area divided according to GB 3095.
4.2.2 Classification of emission rate standards
4.2.2.1 Level I standards shall apply to pollution sources located in Class I control area. Except for non-operating life stoves, new and extended pollution sources are forbidden in Class I control area, and Level I standards in the first period shall apply to renovation of existing sources, and the total emission of pollutants shall not be increased.
4.2.2.2 Level II standards shall apply to pollution sources located in Class II control area.
4.2.2.3 Level III standards shall apply to pollution sources located in Class III control area.
4.3 Standard values
4.3.1 Time division
4.3.1.1 Limits for the project (the boiler is completed and used) in the first period before January 1, 2002.
4.3.1.2 Limits for the project (the boiler is completed and used) in the second period from January 1, 2002.
4.3.1.3 The construction time of the projects shall be based on the environmental impact report, the report form and the date of approval of the registration form; the time of completion and use of the boiler shall be based on the date of acceptance of the project.
4.3.2 Process waste gas
4.3.2.1 The process waste gas emitted from projects constructed in the first period shall be subject to the limits specified in Table 1.
4.3.2.2 The process waste gas emitted from projects constructed in the second period shall be subject to the limits specified in Table 2.
4.3.2.3 The emission pipe height shall not only comply with the emission rate limits given in these tables, but also be more than 5 m higher than the buildings within 200-meter radius from the pipe, or otherwise it shall comply with 50% of the emission rate limit corresponding to its height.
4.3.2.4 If the distance between two emission pipes that emit the same pollutants (whether they are produced by the same production process) is less than the sum of their geometric heights, they shall be considered as one equivalent emission pipe. If more than three closely arranged emission pipes emit the same pollutant, the equivalent emission pipe of the first two emission pipes shall be adopted to calculate the equivalent value with the third one and then the fourth one in sequence. See Annex A for the calculation method of relevant parameters of equivalent emission pipe.
4.3.2.5 If the height of an emission pipe is between the two values listed in this standard, the maximum acceptable emission rate applied is calculated with interpolation method (see Annex B for the formula of interpolation method); if it is greater or less than the maximum or minimum value listed in this standard, the maximum acceptable emission rate applied is calculated with extrapolation method (see Annex B for the formula of extrapolation method).
4.3.2.6 After the issuance of this standard, emission pipe of new project shall generally be not lower than 15 m. If it has to be, its emission rate limit is subject to 50% of the rate calculated with extrapolation method of 4.3.2.5.
4.3.2.7 After the issuance of this standard, fugitive emission of new project shall be under strict control, and generally there shall be no fugitive emission; if inevitable, fugitive emission shall comply with the limits specified in Table 2.
4.3.2.8 If exhaust from industrial production is indeed required to be burned and emitted, the blackness of smoke shall not exceed Ringelmann Level 1.
Contents of DB44/27-2001
Foreword i
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Technical contents
4.1 Indicator system
4.2 Division of control areas and classification of emission rate standards
4.3 Standard values
5 Monitoring
5.1 Sampling
5.2 Sampling point
5.3 Time and frequency
5.4 Monitoring and analysis requirements
5.5 Determination of air displacement
5.6 Analysis methods
5.7 Flue gas continuous monitoring device
6 Standard implementation
Annex A (Normative) Calculation of relevant parameters of equivalent emission pipe
Annex B (Normative) Interpolation and extrapolation to determine the maximum acceptable emission rate of an emission pipe
Table 1 Emission limits of air pollutants from process waste gas (First period)
Table 2 Emission limits of air pollutants from process waste gas (second period)
Table 3 Maximum acceptable emission limits of air pollutants from thermal power plant
Table 4 Coefficient P and m
Table 5 Maximum acceptable emission limits of air pollutants from boilers
Table 6 Dust initial emission concentration limits
Table 7 Minimum acceptable height of boiler chimney
Table 8 Conversion by excess air coefficient
Table 9 Maximum acceptable emission limits for air pollutant in cement plants (first period)
Table 10 Maximum acceptable emission limits for air pollutants in cement plants (second period)
Table 11 Minimum acceptable height of cement plant chimney (emission pipe)
Table 12 Analysis method
