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Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. HJ 969-2018: Technical Guideline for Environmental Radiation Background Survey of Nuclear Power Plants Before Operation Status: Valid
Basic dataStandard ID: HJ 969-2018 (HJ969-2018)Description (Translated English): Technical Guideline for Environmental Radiation Background Survey of Nuclear Power Plants Before Operation Sector / Industry: Environmental Protection Industry Standard Classification of Chinese Standard: HJ Word Count Estimation: 11,127 Date of Issue: 2018-09-20 Date of Implementation: 2019-01-01 Regulation (derived from): Ministry of Ecology and Environment Announcement No. 39 of 2018 Issuing agency(ies): Ministry of Ecology and Environment HJ 969-2018: Technical Guideline for Environmental Radiation Background Survey of Nuclear Power Plants Before Operation---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Technical Guideline for Environmental Radiation Background Survey of Nuclear Power Plants Before Operation 1 National Environmental Protection Standard Radiation environment background survey before nuclear power plant operation specifications Technical Guideline for Environmental Radiation Background Survey of Nuclear Power Plants Before Operation Published on.2018-09-20 2019-01-01 implementation Ministry of Ecology and Environment released i directory Foreword.I 1 Scope.1 2 Normative references.1 3 Terms and Definitions 1 4 Investigation tasks and objectives.1 5 Basic requirements for investigation. 2 6 Surveyed monitoring items and requirements. 2 7 Quality Assurance.7 Appendix A Detection limit requirements for each monitoring item.8 I preface In order to implement the Environmental Protection Law of the People's Republic of China and the Law of the People's Republic of China on Prevention and Control of Radioactive Pollution, Radiation pollution, improve the environment, standardize the investigation of the radiation environment of nuclear power plants, and develop this standard. This standard specifies the technical requirements for the site selection of the new plant site of the nuclear power plant and the radiation environment background before the nuclear power plant operation. Appendix A of this standard is a normative appendix. This standard is formulated by the Department of Ecological Environment Safety Supervision Department, Regulations and Standards Division. This standard is mainly drafted by. Nuclear and Radiation Safety Center of the Ministry of Environmental Protection, China Radiation Protection Research Institute. This standard has been implemented since January 1,.2019. This standard is explained by the Ministry of Ecology and Environment. 1 nuclear power plant before the operation of the radiation environment background technical specifications1 Scope of applicationThis standard specifies the technical requirements for the site selection of the new plant site of the nuclear power plant and the radiation environment background before the nuclear power plant operation. This standard is applicable to the site selection of new sites in large nuclear power plants and the radiation environment background survey before the operation of nuclear power plants, small modules. The nuclear power plant can be simplified according to the results of nuclear safety and environmental assessment.2 Normative referencesThe contents of this standard refer to the following documents or their terms. For undated references, the valid version is appropriate. Used in this standard. GB 6249 nuclear power plant environmental radiation protection regulations GB 11216 General requirements for quality assurance programs for nuclear facility effluents and environmental radioactivity monitoring HJ 493 Technical regulations for the preservation and management of water sampling samples HJ/T 61 Radiation Environmental Monitoring Technical Specification HAF003 Nuclear Power Plant Quality Assurance Safety Regulations3 Terms and definitionsThe following terms and definitions apply to this standard. 3.1 Radiation radiation In this standard, radiation refers only to ionizing radiation. 3.2 receiving water body receiving water body Environmental surface that accepts liquid effluent from nuclear power plants and disperses radionuclides in the effluent in their water The water body can be a sea, a river, a lake or a reservoir. 3.3 control point contrast site In areas where the effects of radioactive materials released by nuclear power plants can be ignored and the original environmental characteristics can be maintained for a long time. Set monitoring points.4 Investigation tasks and objectives4.1 The site selection of the new site shall be carried out preliminary investigation of the radiation environment background; the radiation environment shall be carried out before the operation of the first unit of the new site. Background investigation; before the operation of the unit built on the same site, the current situation of radiation environment should be investigated. 4.2 Location of the new site for radiation environment The purpose of the preliminary investigation is to provide radiation environment characteristics for the evaluation of site suitability. material. 4.3 The radiation environment background survey before the operation of the first unit of the new site aims to obtain the environmental γ-radiation before the operation of the nuclear power plant. The data of the background level and its changes of important radionuclides in the emission level and environmental medium are the radiation after the operation of the nuclear power plant. Environmental monitoring provides background information that can be compared and interpreted for the development of a radiation environmental monitoring program during the operation of a nuclear power plant Technical basis. According to the requirements of GB 6249, the survey should obtain at least the survey data of the last two years. 4.4 The purpose of the investigation of the current situation of radiation environment before the operation of the unit built at the same site of the nuclear power plant is to understand the pre-work Changes in the radiation environment after the operation of the process. According to the requirements of GB 6249, the survey should obtain at least the survey data of the most recent year. 25 Basic requirements for investigation 5.1 The following information should be collected to provide a basis for the development of the monitoring programme. (1) Population, meteorology, hydrology, geology, natural resources, agriculture, animal husbandry and fishery within the scope of environmental impact assessment of nuclear power plants Information on aquaculture; (2) Overview of nuclear facilities, uranium and antimony facilities in the nuclear power plant with a radius of 30km; (3) An overview of the facilities that increase the natural radiation exposure caused by human activities within a radius of 15km within the nuclear power plant; (4) Overview of the application of isotope production and unsealed radioisotopes within a radius of 15km from a nuclear power plant; (5) Overview of the application of Class I and Class II radioactive sources within a radius of 5km from the nuclear power plant. 5.2 Radiation environmental monitoring results within the scope of environmental impact assessment of nuclear power plants should be collected as much as possible. 5.3 Initial site survey of the site address of the new site, the necessary on-site monitoring should be carried out, γ-radiation/penetrating radiation of terrestrial environment The monitoring range of the dose rate generally takes a radius of 20km, and the monitoring range of other items generally takes a radius of 5 to 10km. Receiving water body Environmental media are generally sampled in the vicinity of the extraction and drainage ports. 5.4 Site selection of the new site Radiation environment The preliminary investigation is completed after more than 5 years of construction, if the site has occurred during the period Incidents with significant impacts on regional environmental radiation levels should be supplemented with investigations or re-investigations. 5.5 The monitoring scope of the radiation environment background survey before operation shall be carried out in accordance with the requirements of GB 6249. 5.6 Radiation environment before operation The background investigation is completed until the start of operation time is less than 5 years, if the site area has occurred during the period Incidents with significant impacts on the level of environmental radiation in the area should be supplemented by investigations or re-investigations. 5.7 Radiation environment before operation. After the end of the investigation, no more than 5 years after the completion of the investigation, the units that have been built at the same site will start to operate. Refer to Section 5.6 Processing. 5.8 Before the operation of the radiation environment before the end of the investigation, more than 5 years after the start of operation, the latest information should be collected and must be carried out. A supplementary investigation is required to analyze whether it is necessary to re-investigate.6 Surveyed monitoring items and requirements6.1 The overall planning of the site should be considered when setting up monitoring projects and monitoring points. 6.2 Principles of Monitoring Points 6.2.1 The investigation of the background investigation should follow the following principles. (1) Close and close distance, evenly covering all sides; (2) Considering the environmental characteristics around the nuclear power plant, in the mountainous areas (or islands) with sparse population and inconvenient transportation The monitoring points can be appropriately reduced; (3) Sensitive to key resident groups, population areas with concentrated population, agriculture, animal husbandry, and aquaculture concentrated areas The district and the dominant wind direction should be appropriately targeted; (4) If the medium that should be disposed but does not have the conditions for setting or the investigation is difficult to collect, it should be in the investigation outline. Explain in the investigation report. 6.2.2 As far as possible, the location of the future disturbance and damage possibility should be selected as the monitoring point so that the power station can run. It can be used as a monitoring point for long-term use during the pre-operational survey of units that are subsequently built at the same site. 6.2.3 The selected points should be able to collect representative samples to avoid the influence of various natural and human factors. 6.2.4 The selected points should be easy to reach, sample and arrange the equipment, and should also consider the power supply, safety and other factors. 6.2.5 Surface gamma radiation dose rate monitoring and cumulative dose monitoring should be arranged at the same point. Soil sampling points should generally have surface γ-spokes. Shooting monitoring. 6.2.6 Surface water bodies (non-receiving water bodies) should generally be consistent with the sampling points of sediments and sediments. 36.2.7 The bottom sediment of the receiving water body should be consistent with the water sample collection point. 6.2.8 When collecting drinking water, it should generally collect its source water at the same time. 6.3 New site selection site Radiation environment background monitoring project and requirements The new site address selection radiation environment background preliminary investigation of the minimum requirements for monitoring items, frequency and layout are shown in Table 6.1. Such as If the concentration of artificial radionuclide activity in the medium listed in the table is abnormal, consideration should be given to the investigation or operation of the supplementary biological medium. Focus on the previous investigation. Table 6.1 Monitoring items, frequency and layout requirements for preliminary investigation of radiation environment background Monitoring object monitoring project monitoring times and other requirements surroundings Through radiation Surface Gamma radiation dose rate 2 times Should be outside the plant, centered on the reactor, 16 orientations and half Sectors formed by circles with diameters of 2km, 5km, 10km, and 20km Place on land (islands) within the area; cloth within the planned plant area Set 2 to 4 points; Sensitive key resident groups, population-concentrated areas, and environmentally sensitive Sensitive areas and other appropriate increase in targeted points. The cumulative dose is required to be the same as the “surface gamma radiation dose rate”, and the number of points can be appropriately reduced. The cumulative measurement time is no less than 2 months. The γ-spectrum nuclide analysis of soil topsoil, 90Sr 1 time outside the plant, within a radius of 10km, on 8 azimuth land (or island), each position is set to 1-3 points. Air aerosol gamma spectroscopy analysis 1 time set 1 or 2 sampling points in the key residential groups, leading downwind to the plant boundary or near the residential area. Drinking water gamma spectroscopy analysis, total alpha, total beta, 90Sr, 3H 1 collection of possible drinking water in key resident groups. Groundwater gamma spectroscopy analysis, 90Sr, 3H 1 site near the groundwater set 1 to 3 points. Surface water gamma spectroscopy analysis, 90Sr, 3H 1 site recently lake (reservoir), river and plant area area of the largest lake (reservoir). Analysis of γ-spectrum nuclide in surface water sediments, 90Sr 1 time surface water Water total α, total βγ spectrum nuclide analysis, 90Sr, 3H 1 time The total alpha and total beta measurements are implemented only at inland sites. At the coastal site, one picking and draining outlets are suitable for each water intake. Sample. Inland site, total drainage, 1km downstream of the total discharge and upper The sampling point of the swimming control point is set, and one sample is collected for each. Sediment gamma spectroscopy analysis, 90Sr 1 time The coastal site, the sediment (the tidal zone) and the receiving water, the shore Sediment (intertidal zone) selects the main shoreside of fishermen and other people Moving place. At the inland site, the sediment is the same as the water in the receiving water, and the sediment on the shore is One sampling point is set at the main shore activity site near the downstream of the drain. 6.4 Monitoring items and requirements for the background investigation of the radiation environment before the operation of the first unit of the new plant The minimum requirements for monitoring items, frequency and layout of the radiation environment background of the first unit of the new plant before operation are shown in Table 6.2. Table 6.2 Radiation environment background of the first unit of the new plant before operation, monitoring project, frequency and layout requirements Monitoring object monitoring project monitoring frequency distribution and other requirements4 ringSurface Gamma radiation dose rate 1 time/quarter Should be outside the plant boundary, centered on the reactor, 16 orientations and radii are Inland areas formed by circles of 2km, 5km, 10km, and 20km Place on the (island). For possible key resident groups, dominant wind direction, maximum plume concentration Target points should be added at the drop point. Suitable for areas with concentrated population and sensitive areas When increasing the targeted points. The cumulative dose 1/quarter distribution requirement is the same as the “surface gamma radiation dose rate”, and the number of points can be appropriately reduced. Dose rate continuous At least 2 consecutive monitoring points should be set to obtain more than 1 year of continuous monitoring according to. Points should be selected as far as possible to continue to continue monitoring during operation. Set. Surface layer γ spectrum nuclides analysis 90Sr, 239 240Pu 1 time/year Outside the plant, the radius does not exceed 20km, in 8 directions land (island On the island, there are 2 to 4 points in each orientation, and each orientation (land) A minimum of 3 points. Focus on key residents, leading winds and winds Large concentration points, concentrated areas and environmentally sensitive areas. The nearest 1 point per orientation is 239 240Pu. Aerosol γ-spectrum nuclides analysis 90Sr 1 time/quarter Outside the plant, with a radius of no more than 10km, there is a conditional location, Binhai Plant The site is set at 2 to 4 points, and the inland site is at least 4 points. Resident groups, dominant winds downwind, densely populated areas and environmentally sensitive areas. The sampling volume should reach 1E 04m3, and the influence of construction dust should be avoided. 90Sr can analyze annual mixed samples. Settlement gamma spectroscopy analysis, 90Sr 1 time/quarter distribution with aerosol. The sediment collector has a bearing area of not less than 0.25m 2. 90Sr can analyze annual mixed samples. Precipitation 3H, 90Sr, γ spectrum nuclide analysis 1 time/quarter Place the same aerosol. When the amount of sample is small, 3H should be analyzed first. 90Sr can analyze annual mixed samples. The gas 3H, 14C, and 131I are distributed once a quarter with the aerosol. 131I determines whether to implement according to data analysis. plant Gamma spectroscopy 90Sr 14C Organic cockroaches, organized free leeches 1 time/harvest period Grains (1~2 species), vegetables (at least 4 species), and fruits (to Less than 2 species), such as the main crops, should also collect indicator organisms, such as cows (sheep) Fields should also collect pasture. Plant species with site characteristics should also be considered for collection. The bioassay 90Sr is indicated, and at least one of the other types of analysis can be selected for 90Sr. For each category of crop mentioned in the preceding paragraph, 2 to 4 sampling sites are located at the coastal site. Point, at least 4 sampling points in the inland site, focusing on the consumption of key residents Origin, dominant wind direction, gas ingestion route, larger dose area, crop owner In the production area, the inland site should also consider the downstream area of the discharge outlet and the receiving water receiving area. Domain, downstream area of groundwater. animal Gamma spectroscopy 90Sr 14C Organic cockroaches, organized free leeches 1 time/year 1~2 species of poultry and livestock are collected, and 2~4 sampling points are set up in the coastal site. At least 4 sampling points are set up at the site, focusing on the consumption of poultry and livestock in key residents. The place of origin, the wind direction under the wind, the larger dose of the gaseous route, and the inland site The downstream area of the discharge port, the receiving water body irrigation area, and the groundwater downstream area should be considered. area. Cow (sheep) milk 131I 1 time/half a year Determine whether to implement according to environmental information. Within a radius of 10km (eg, within 10km, 20km range) Inside) look for sampling points. 1 to 2 sampling sites at the coastal site, inland sites 2 to 4 Sample points. 5 non drinking water Total α, total Gamma spectroscopy 90Sr 3H, 14C Annual flood season, dry1 time each water periodPossible key resident groups and sampling points within a radius of 5km. inland The site should also collect drinking water from residents who receive the water source as the source of drinking water. 2 to 4 sampling points for the coastal plant site and 4 to 8 sampling sites for the inland site point. Partial point analysis can be selected for 90Sr, 14C. groundwater Gamma spectroscopy 90Sr 3H, 14C Annual flood season, dry1 time each water periodPossible key resident groups and sampling points within a radius of 5km. inland The site needs to be considered within 20km of the groundwater unit closely connected to the receiving water body. Sampling point. There are no less than 4 sampling sites in the coastal site and no less than 8 inland sites. Sa......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of HJ 969-2018_English be delivered?Answer: Upon your order, we will start to translate HJ 969-2018_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of HJ 969-2018_English with my colleagues?Answer: Yes. 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