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GB 3095-2012 PDF English

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GB 3095-2012: Ambient air quality standards
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GB 3095: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] deliveryName of Chinese StandardStatus
GB 3095-2012English70 Add to Cart 0-9 seconds. Auto-delivery Ambient air quality standards Valid
GB 3095-1996English279 Add to Cart 3 days Ambient air quality standard Obsolete
GB 3095-1982EnglishRFQ ASK 3 days Ambient air quality standard Obsolete

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GB 3095-2012: Ambient air quality standards

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GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 13.040.20 Z 50 Replacing GB 3095-1996, GB 9137-88 Ambient air quality standards [Including Amendment List 2018XG1] Issued on. FEBRUARY 29, 2012 Implemented on. JANUARY 01, 2016 Issued by. Ministry of Environmental Protection of PRC; General Administration of Quality Supervision, Inspection and Quarantine of PRC. Notice of Ministry of Environmental Protection of PRC No.7, 2012

Table of Contents

Foreword... 4 1 Scope... 6 2 Normative references... 6 3 Terms and definitions... 7 4 Classification of ambient air functional zone and quality requirements... 9 5 Monitoring... 11 6 Validity of data statistics... 12 7 Implementation and supervision... 13 Appendix A (Informative) Reference concentration limits for cadmium, mercury, arsenic, hexavalent chromium, fluoride in ambient air... 15 Amendment List [2018XG1]... 16

Foreword

For the implementation of the Environmental Protection Law of the People's Republic of China and the Law of the People's Republic of China on the Prevention and Control of Air Pollution, protecting and improving the living environment and ecological environment, safeguarding human health, this standard is hereby formulated. This standard specifies the classification of ambient air functional zones, standard grading, pollutant items, average time and concentration limits, monitoring methods, validity of data statistics, implementation and supervision. The people's governments of all provinces, autonomous regions, and municipalities directly under the Central Government may formulate local ambient air quality standards for pollutant items which are not specified in this standard. The concentration of pollutants in this standard is the mass concentration. This standard was first published in 1982.The first revision is in 1996, the second revision is in 2000.This is the third revision. This standard will be revised in an appropriate manner in accordance with the national economic and social development and environmental protection requirements. The main contents of this revision. - ADJUST the classification of ambient air functional zones; MERGE the category-3 zone into the category-2 zone; - ADD the concentration limit of particulate matter (particle size less than or equal to 2.5 μm) and an 8-hour average concentration limit of ozone; - ADJUST the concentration limit of particulate matter (particle size less than or equal to 10 μm), nitrogen dioxide, lead and benzo[a]pyrene; - ADJUST the provisions on the validity of data statistics. From the date of implementation of this standard, “Ambient air quality standards” (GB 3095-1996), “Ambient air quality standards” (Amendment of GB 3095- 1996), (HF [2000] No.1), and “Maximum allowable concentration of pollutants in atmosphere for protection crops” (GB 9137-88) are abolished. Appendix A of this standard is an informative appendix, which provides reference for the formulation of local ambient air quality standards by provincial people’s government. This standard was formulated under the organization of the Science and Technology Standards Department of the Ministry of Environmental Protection. Main drafting organizations of this standard. China Academy of Environmental Sciences, China Environmental Monitoring Center. This standard was approved by the Ministry of Environmental Protection on February 29, 2012. For this standard, the Ministry of Environmental Protection is responsible for the interpretation. Ambient air quality standards

1 Scope

This standard specifies the classification of ambient air functional zones, standard grading, pollutant items, average time and concentration limits, monitoring methods, validity of data statistics, implementation and supervision. This standard applies to the assessment and management of ambient air quality.

2 Normative references

This standard refers to the following documents or their terms. For the undated documents, only the latest version is applicable to this standard. GB 8971 Air quality - Determination of benzo(α) pyrene in flying dust - Acetylated paper chromatography fluorescence spectrophotometric method GB 9801 Air quality - Determination of carbon monoxide - Non-dispersive infrared spectrometry GB/T 15264 Ambient air - Determination of lead - Flame atomic absorption spectrophotometric method GB/T 15432 Ambient air - Determination of total suspended particulates - Gravimetric method GB/T 15439 Air quality - Determination of benzo[a]pyrene in ambient air - High performance liquid chromatography HJ 479 Ambient air - Determination of nitrogen oxides-N-(1-naphthyl) ethylene diamine dihydrochloride spectrophotometric method HJ 482 Ambient air - Determination of sulfur dioxide - Formaldehyde absorbing-pararosaniline spectrophotometry HJ 483 Ambient air - Determination of sulfur dioxide in ambient air - Tetrachloromercurate (TCM)-pararosaniline method HJ 504 Ambient air - Determination of ozone - Indigo disulphonate spectrophotometry HJ 539 Ambient air - Determination of lead - Graphite furnace atomic absorption spectrometry (provisional) HJ 590 Ambient air - Determination of ozone - Ultraviolet photometric method HJ 618 Determination of atmospheric articles PM10 and PM2.5 in ambient air by gravimetric method HJ 630 Technical guideline on environmental monitoring quality management

3 Terms and definitions

The following terms and definitions apply to this standard. 3.1 Ambient air Refers to the outdoor air exposed to people, plants, animals and buildings. 3.2 Total suspended particle (TSP) Refers to particulate matter in ambient air which has an aerodynamic equivalent diameter less than or equal to 100 μm. 3.3 Particulate matter (particle size less than or equal to 10 μm) (PM10) Refers to particulate matter in ambient air which has an aerodynamic equivalent diameter less than or equal to 10 μm, also known as respirable particulate matter. 3.7 Fluoride Refers to inorganic fluorides as presented in the form of gaseous particulate forms. 3.8 1-hour average Refers to the arithmetic mean of pollutant concentration per any 1-hour. 3.9 8-hour average Refers to the arithmetic mean of the average concentration for 8 consecutive hours, also known as the 8-hour moving average. 3.10 24-hour average Refers to the arithmetic mean of the average concentration for 24-hour of a natural day, also known as the daily average. 3.11 Monthly average Refers to the arithmetic mean of the average daily concentration for a calendar month.

4 Classification of ambient air functional zone and

quality requirements 4.1 Classification of ambient air functional zones The ambient air functional zone is divided into two categories. the first category is a nature reserve, a scenic spot and other zones that require special protection; the second category is a residential area, a commercial & traffic & residence mixed area, a cultural area, an industrial area, a rural area. 4.3 This standard has been implemented nationwide since January 1, 2016. The basic items (Table 1) are implemented nationwide. 4.4 Prior to the implementation of this standard nationwide, the administrative department of environmental protection under the State Council may, in accordance with the requirements of such files as the “Guiding Opinions on Promoting Air Pollution Joint Prevention and Control Work to Improve Regional Air Quality”, implement this standard in advance in the designated regions. The specific implementation plan (including geographical scope, time, etc.)

5 Monitoring

The monitoring of ambient air quality shall be carried out in accordance with the requirements of such normative documents as the Ambient Air Quality Monitoring Regulations (Trial). 5.2 Collection of samples The requirements of sampling environment, sampling height, sampling frequency in ambient air quality monitoring shall be as required by HJ/T 193 or HJ/T 194. 5.3 Analytical methods It shall, according to the requirements of Table 3, take the corresponding method to analyze the concentration of each pollutant.

6 Validity of data statistics

6.1 It shall take measures to ensure the accuracy, continuity and completeness of the monitoring data, to ensure a comprehensive and objective reflection of the monitoring results. All valid data shall be subjected to statistics and evaluations. It shall neither selectively discard the adverse data nor artificially intervene the monitoring and evaluation results. 6.3 The determination and processing of abnormal values shall comply with the provisions of HJ 630.For the missing and deleted data during the monitoring process, it shall describe the causes and retain the detailed raw data records, for data review. 6.4 In any case, the concentration data of effective pollutant shall meet the minimum requirements in Table 4, otherwise it shall be regarded as invalid data.

7 Implementation and supervision

7.1 For this standard, the environmental protection administrative departments at all levels shall be responsible for the supervision of its implementation. 7.2 The scope of various types of ambient air function zones shall be divided by the environmental protection administrative departments of the people's governments above the county level (including county level) and reported to the people's government at the same level for approval. 7.3 In accordance with the provisions of the Law of the People's Republic of China on the Prevention and Control of Atmospheric Pollution, key cities for air pollution prevention and control that do not meet this standard shall meet this standard in accordance with the time limit as prescribed by the State Council or the environmental protection administrative department of the State Council.

Appendix A

(Informative) Reference concentration limits for cadmium, mercury, arsenic, hexavalent chromium, fluoride in ambient air Pollutant limit ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.


      

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