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Basic data
| Standard ID | GB/T 39792.1-2020 (GB/T39792.1-2020) |
| Description (Translated English) | (Technical Guidelines for Identification and Assessment of Eco-environmental Damage Environmental Elements - Part 1: Soil and Groundwater) |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | Z06 |
| Classification of International Standard | 13.020.01 |
| Word Count Estimation | 33,342 |
| Date of Issue | 2020-12-29 |
| Date of Implementation | 2021-01-01 |
| Regulation (derived from) | Ministry of Ecology and Environment Announcement No. 79 [2020] |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 39792.1-2020: (Technical Guidelines for Identification and Assessment of Eco-environmental Damage Environmental Elements - Part 1: Soil and Groundwater)
---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 Guidelines for Identification and Assessment of Eco-environmental Damage Environmental Elements Part 1.Soil and Groundwater)
National Standards of People's Republic of China
Technical Guidelines for Ecological Environment Damage Identification and Assessment
Environmental Elements Part 1.Soil and Groundwater
Technical guideline for identification and assessment of environmental
damage-Environmental elements
-Part 1.Soil and groundwater
2020-12-29 released
2021-01-01 implementation
Ministry of Ecology and Environment
State Administration for Market Regulation
release
ICS 13.040.50
Z 64
Table of contents
Foreword...ii
1 Scope of application...1
2 Normative references...1
3 Terms and definitions...2
4 Work content and procedures...3
5 Preparation for appraisal...4
6 Investigation and confirmation of soil and groundwater damage...6
7 Analysis of the causal relationship between soil and groundwater damage...10
8 Physical quantification of soil and groundwater damage and development of restoration plans...11
9 Soil and groundwater damage value quantification...14
10 Soil and groundwater restoration effect evaluation...15
11 Report preparation...16
Appendix A (informative appendix) Soil and groundwater damage scenarios...17
Appendix B (informative appendix) applicable conditions and technical performance of commonly used soil restoration technologies...18
Appendix C (informative appendix) applicable conditions and technical performance of common groundwater restoration technologies...26
Technical Guidelines for Eco-environmental Damage Identification and Assessment Environmental Elements
Part 1.Soil and groundwater
1 Scope of application
This standard specifies the content, working procedures, methods and technical requirements of the evaluation and evaluation of ecological environmental damage involving soil and groundwater.
This standard applies to the identification and assessment of ecological environmental damage involving soil and groundwater caused by environmental pollution or ecological damage.
This standard does not apply to the identification and evaluation of ecological environmental damage involving soil and groundwater caused by nuclear and radiation accidents.
2 Normative references
This standard refers to the following documents or their clauses. For dated reference documents, only the dated version applies to this standard. Where
It is an undated reference document, and its latest version (including all amendments) is applicable to this standard.
GB 5084 Farmland Irrigation Water Quality Standard
GB 5749 Sanitary Standard for Drinking Water
GB 9834 Soil Organic Matter Determination Method
GB 11607 Fishery Water Quality Standard
GB 15618 Soil Environmental Quality Agricultural Land Soil Pollution Risk Control Standard (for Trial Implementation)
GB 36600 Soil Environmental Quality Construction Land Soil Pollution Risk Control Standard (Trial)
GB/T 14848 Groundwater Quality Standard
GB/T 18508 Evaluation Regulations for Urban Land
GB/T 39791.1 General Outline and Key Links of Technical Guidelines for Ecological and Environmental Damage Identification Assessment Part 1.General Outline
GB/T 39791.2 General Outline and Key Links of Technical Guidelines for Eco-environmental Damage Assessment and Assessment Part 2.Damage Investigation
HJ 25.1 Technical Guidelines for the Investigation of Soil Pollution Status of Construction Land
HJ 25.2 Technical Guidelines for Soil Pollution Risk Control and Remediation Monitoring of Construction Land
HJ 25.3 Technical Guidelines for Soil Pollution Risk Assessment of Construction Land
HJ 25.4 Technical Guidelines for Soil Remediation of Construction Land
HJ 25.5 Technical guidelines for risk management and soil remediation evaluation of contaminated land
HJ 25.6 Technical Guidelines for Groundwater Remediation and Risk Management of Contaminated Land
HJ 493 Technical Regulations for Storage and Management of Water Quality Sampling Samples
HJ 710.1 Technical Guidelines for Biodiversity Observation and Terrestrial Vascular Plants
HJ 710.2 Biodiversity Observation Technical Guidelines Lichen and Moss
HJ 710.3 Biodiversity Observation Technical Guidelines for Terrestrial Mammals
HJ 710.5 Biodiversity Observation Technical Guidelines for Reptiles
HJ 710.6 Technical Guidelines for Biodiversity Observation Amphibians
HJ 710.10 Technical Guidelines for Biodiversity Observation, Large and Medium-sized Soil Animals
HJ 710.11 Guidelines for Biodiversity Observation Technology
HJ 1019 Technical Guidelines for Sampling of Volatile Organic Compounds in Soil and Groundwater
HJ/T 164 Technical Specification for Groundwater Environmental Monitoring
HJ/T 166 Technical Specification for Soil Environmental Monitoring
CJ/T 206 Water Quality Standard for Urban Water Supply
DZ/T 0290 Groundwater Quality Standard
NY/T 1121.16 Soil Testing Part 16.Determination of Total Water-soluble Salt in Soil
NY/T 1121.22 Soil Testing Part 22.Determination of Soil Field Water Holding Capacity-Ring Knife Method
NY/T 3343 Cultivated land pollution control effect evaluation criteria
NY/T 3499 Guidelines for the Treatment and Restoration of Contaminated Farmland
"Recommended Methods for Environmental Damage Assessment in the Emergency Response Phase of Environmental Incidents" (Huanban [2014] No. 118)
"Recommended Methods for Environmental Damage Appraisal and Assessment (II Edition)" (Huanban [2014] No. 90)
"Guidelines for Investigation and Evaluation of Groundwater Environmental Conditions" (Huanban Soil Letter [2019] No. 770)
"Guidelines for Groundwater Pollution Simulation, Prediction and Assessment" (Huanban Soil Letter [2019] No. 770)
"Detailed Rules for the Verification of Direct Economic Losses in the Emergency Response Phase of Emergent Ecological and Environmental Incidents" (Huan Emergency [2020] No. 28)
3 Terms and definitions
The following terms and definitions apply to this standard.
3.1
Soil
The loose layer on the earth's land surface composed of minerals, organic matter, water, air, and biological organisms.
3.2
Groundwater
Water buried in voids in the earth's crust in various forms.
3.3
Environmental sensitive area
Legally established protected areas of various levels and areas, as well as areas particularly sensitive to certain types of pollutants or ecological impacts, mainly include ecological protection
The ecological protection red lines, nature reserves, special marine protection areas, drinking water source protection areas, basic
Farmland protection areas, basic grasslands, important wetlands, natural forests, important wildlife habitats, key protected wild plant growth and reproduction areas, heavy
The habitats and migration channels of aquatic organisms, natural fishing grounds, key water and soil erosion prevention areas, sandy land closed protection areas, and natural coastlines,
As well as areas whose main functions are housing, medical and health, cultural education, scientific research, and administrative office.
3.4
Health risk assessment
Based on soil and groundwater surveys, analyze the main exposure pathways of pollutants to the population, and evaluate the effects of pollutants on human health
The carcinogenic risk or hazard level.
3.5
Conceptual model
Use words, diagrams, tables, etc. to systematically and comprehensively describe pollution sources, pollutant migration pathways, and exposure of the human body or ecological receptors to polluting media
Process and contact methods, etc.
3.6
Receptor
Environmental factors such as soil and groundwater in the assessment area and its surrounding environment that may be affected by environmental pollution or ecological damage, and
People, biological groups and ecosystems.
3.7
Theoretical treatment cost
The governance cost calculated by the governance cost function. The governance cost function takes governance costs as the dependent variable, and uses processing technology and processing
Factors such as scale and pollutant removal efficiency are function models constructed by independent variables. When the concentration of pollutants and governance objectives are determined, the
The above variables are brought into the governance cost function, and the corresponding theoretical governance costs can be obtained.
4 Work content and procedures
4.1 Work plan formulation
Grasp the basic situation of ecological environmental damage involving soil and groundwater, and understand the natural environment and social conditions of the damaged area and surrounding areas;
Preliminarily judge the damage scope of soil and groundwater, clarify the content of the ecological environment damage identification assessment involving soil and groundwater, and determine the identification
Evaluation methods, preparation of appraisal and evaluation work plans.
4.2 Damage investigation confirmation
Through conducting geological and hydrogeological surveys, soil and groundwater pollution status surveys, soil and groundwater ecological service function surveys, soil
The baseline level survey of soil and groundwater environmental quality and its ecological service function, to determine whether the soil and groundwater environment and its ecological service function
got damage.
4.3 Causality analysis
Through pollution source analysis, migration and transformation process analysis and verification, analyze whether there is a relationship between environmental pollution behavior and soil and groundwater damage
Causal relationship. By analyzing the mechanism of ecological damage caused by soil and groundwater damage, determine ecological damage and soil and groundwater damage
Whether there is a causal relationship between harms.
4.4 Physical quantification of soil and groundwater damage and development of restoration plans
Screen soil and groundwater damage assessment indicators to determine the extent and scope of damage. When the damaged soil and groundwater can be restored, the study determines the base
For this restoration goal, formulate alternative basic restoration plans, estimate restoration time, calculate period damage, determine the scale of compensatory restoration, and formulate alternatives
Compensatory restoration plans, conduct comprehensive comparison and selection of restoration plans, and determine the best plan.
4.5 Quantification of soil and groundwater damage value
Based on whether the soil and groundwater damage has been restored, whether it needs to be restored, whether it can be restored, etc., the restoration cost method and actual
Governance cost method, theoretical governance cost method, virtual governance cost method, resource value method and other environmental value evaluation methods
Quantify.
4.6 Preparation of soil and groundwater damage assessment report
Compile ecological environmental damage assessment reports (opinions) involving soil and groundwater, and establish a complete
Water ecological environment damage identification and assessment work files. The evaluation of the effect of ecological environment restoration shall prepare an independent evaluation report of the effect of ecological environment restoration.
4.7 Evaluation of soil and groundwater restoration effect
Regularly track the restoration of soil and groundwater damage and evaluate whether the restoration effect has reached the expected goal. When the expected goal is not reached, the design
And implement a supplementary restoration plan; when it is judged by the risk assessment and other processes that no supplementary restoration is needed, the environmental value assessment method
Should loss calculation.
See Figure 1 for the identification and assessment procedures of ecological environmental damage involving soil and groundwater. In practice, you can appropriately simplify the
The above-mentioned related work shall be carried out selectively. When necessary, special topics should be carried out in response to key issues in the assessment of ecological environmental damage
the study.
The basic situation of soil and groundwater ecological environmental damage, understand the natural environment and social conditions of the damaged area and surrounding areas, analyze the soil and ground
The scope of possible damage to the launching water, clarify the main content of the ecological environment damage identification and assessment work involving soil and groundwater, and study to determine the assessment
Specific methods of work, preparation of appraisal and evaluation work plans.
5.1 Basic situation survey
a) Information related to the source of damage. pollution source, production history, production process and pollutant generation link, location, pollutant discharge,
Stacking, landfilling and disposal areas, historical pollution accidents and their handling conditions; for environmental emergencies, the incident should be ascertained
Time and location, the type and nature of pollutants that may be produced, the discharge amount (volume, mass), pollutant concentration, etc.
Circumstances; for ecological damage incidents, understand the nature of the incident, damage mode, time, location and other basic information;
b) Information related to the damage process. pollutant discharge method, discharge time, discharge frequency, discharge destination, characteristic pollutant category, concentration
Degree, possible secondary pollutant type, concentration and other information and conditions; damaged forest land, cultivated land, grassland, wetland and other ecological
The natural state of the system, as well as the time, method and process of damage to animals and plants;
c) Information related to preliminary treatment and disposal. control measures such as pollutant clean-up, prevention of pollution spread, or relevant information on the implementation of ecological restoration measures
Materials and conditions, including implementation process, implementation effect, cost and other related information;
d) Historical and current monitoring related information. monitoring work development and monitoring data, including monitoring data of soil and groundwater environmental quality
According to survey data such as the number, density, abundance, structure, community composition and structure of indicative biological species;
e) The current status and recoverability of the ecological environment damage in the area where alternative restoration may be carried out.
5.2 Natural environment and socio-economic information collection
Investigation and collection of natural environmental information in the assessed area, including.
a) Topography, geomorphology, hydrology, climate and weather data;
b) Geological and hydrogeological data;
c) The history, current situation and planning information of land and groundwater utilization;
d) The distribution of existing groundwater wells;
e) Information on the distribution of environmentally sensitive areas such as residential areas, drinking water sources, ecological protection red lines, nature reserves, wetlands, and scenic spots
Information and the distribution of major biological resources;
f) Distribution of factories, mines, reservoirs, structures, ditches, underground pipe networks, seepage pits and other non-point source pollution.
Collect socio-economic information of the assessment area, including.
a) The current status and development of the economy and major industries;
b) Related information on local regulations, policies and standards;
c) Information on population, transportation, infrastructure, energy and water supply.
5.3 Work plan formulation
According to the damage situation and the collected natural environmental and social information, preliminary judgment of the possible damage type, soil and underground
The scope of possible damage to the water environment and its ecological service functions, including time and space. If necessary, it can be combined with remote sensing map and image map.
Perform auxiliary judgments, or use existing monitoring data to simulate the spatial distribution of pollutants. When there is a lack of time-sensitive monitoring data, establish a regional
Or deduct the conceptual model of the site to determine the scope of possible damage.
According to the basic situation of the damage and the entrusted items of the appraisal and evaluation, clarify the content of the damage appraisal and evaluation work to be carried out and design the working procedures
Through investigation, special research, expert consultation, etc., determine the specific method of each appraisal and evaluation work, and prepare the evaluation work plan.
6 Investigation and confirmation of soil and groundwater damage
6.1 Geological and hydrogeological survey
6.1.1 Purpose of Investigation
The purpose of geological and hydrogeological survey is to understand the soil properties, stratum lithology distribution, structural development, groundwater types,
The distribution of aquifers, groundwater replenishment and drainage conditions, etc., to obtain geological information and key hydrogeological parameters, and to determine whether pollutants are in the soil and water
The migration and diffusion conditions in the layer lay the foundation for the investigation of soil and groundwater pollution, and contribute to the soil and groundwater environment and its ecological services.
Provide basis for the quantification and causality determination of the damage.
6.1.2 Investigation principles
a) Make full use of existing information. Preliminary understanding of the geological and hydrogeological information of the assessed area based on the existing data, focusing on the existing data
There are well data, preliminary identification and evaluation of regional aquifer distribution, groundwater flow field, groundwater replenishment and drainage information, the existing data is insufficient
To carry out further investigations;
b) Conduct surveys taking into account the hydrogeological conditions of the area and the assessment area. Obtain regional geological and hydrogeological data, combined with site survey
Accuracy, screening and application of acquired data, preliminary judgment and evaluation of regional geological and hydrogeological information, taking into account local changes
If the regional data cannot meet the needs of the survey, use drilling, geophysical prospecting and related tests to carry out targeted
The necessary assessment of regional geological and hydrogeological survey work.
6.1.3 Investigation method
a) Data collection
Further collect relevant data such as the assessment area geological map, borehole columnar map, geological section map, geological structure map, hydrogeological map, etc.
The stratum lithology and its distribution, and the development of bedrock fissures in the assessment area, master the groundwater storage conditions and aquifer distribution (buried
Depth, thickness, lithology), hydrogeological unit division, groundwater replenishment and drainage conditions and key hydrogeological parameters.
b) Status survey
Collect well construction data of built water wells, understand well depth, well structure, well construction material properties, water filter pipe distribution and other information, according to aquifer formation
The characteristics of the structure, the water level survey of the built wells, the depth of groundwater and the flow direction of groundwater in different water-bearing rock groups, and the structure and quantity of the built wells
And the location meets the conditions, it can also be used to carry out hydrogeological tests and obtain key hydrogeological parameters. Use existing wells to carry out water level monitoring,
When monitoring water quality, care should be taken to exclude water wells with incomplete well construction records and lax well closure.
c) Drilling, geophysical prospecting and testing
For those with a large damage area, preliminary identification of the near-surface strata medium and special structure distribution, and inconvenience for large-scale drilling work
Circumstances, prioritize the selection of geophysical prospecting methods to identify areas, identify key areas, guide subsequent drilling or hydrogeological tests, and pass
Drilling verification or further identification of concerns in key areas, such as identifying the distribution of fissures to determine priority channels for pollutant migration, and passing through hydrological land
Qualitative tests identify abnormal permeability areas to obtain information on the migration rate of local pollutants and the cause of sudden changes in the distribution.
For situations where the damage scope is small, the distribution characteristics of pollutants need to be investigated in detail, and detailed drilling investigations are available, full advantage should be taken.
Use the existing hydrogeological survey data, geophysical prospecting results and other data in the assessment area, and carry out drilling or hydrogeology at key points of interest as needed
Test work to obtain groundwater storage conditions, aquifer distribution, groundwater replenishment and drainage conditions and important hydrogeological parameters in the assessment area.
When a single technical means is not enough to meet the needs of damage assessment investigation work, a comprehensive application of multiple technical means is required, such as the inability to judge bedrock
When the fissures are distributed, a combination of geophysical prospecting and drilling can be used to find out the distribution of bedrock fissures, and soil drilling and groundwater monitoring wells can be used
The drilling records during the drilling process determine the formation lithology and its distribution, and use the groundwater monitoring wells to carry out hydrogeological tests.
6.2 Investigation of the status quo of soil and groundwater environmental quality
6.2.1 Identification and selection of characteristic indicators
For situations where the pollution source is clear, priority is given to collecting samples that can represent the characteristics of the pollution source, through analysis and testing, according to the pollution source detected
The characteristic pollutants can also be determined through site survey, data collection and personnel interviews, according to the production process of the pollution source and industry characteristics.
Collect and evaluate regional environmental conditions, pollutant properties and transformation laws, comprehensively analyze, identify and select characteristic pollutants.
For situations where the source of the pollution is unknown, qualitative and quantitative analysis of the pollutants is carried out by collecting samples of soil and groundwater that may be damaged.
Screen characteristic pollutants. Selecting characteristic pollutants from the detected pollutants should be combined with the characteristics of the assessment area, and priority should be given to the relevant environmental quality in my country
Substances in the standard. For the detected substances that are not in the relevant environmental quality standards, the relevant foreign standards and research results should be consulted.
When necessary, combine relevant experimental tests to evaluate its hazards and determine whether it is a characteristic pollutant.
When the pollution source is acidic and alkaline substances, pH should be listed as an evaluation index. When no characteristic pollutants are identified, but the assessment area soil
Or the groundwater shows obvious color or odor abnormality, and the color or odor should be listed as an indicator for auxiliary evaluation. For other obvious pollution rings
Environmental behavior, but the characteristic pollutants are not clear, and there is no acid-base, abnormal color or smell. The soil and underground are screened according to the actual situation.
Water-related physical and chemical indicators are used as characteristic indicators or auxiliary evaluation indicators.
The selection of characteristic indicators should also consider the secondary pollutants that may be generated during the pollutant conversion process, and the introduction of the initial emergency treatment and repair process.
The imported substances and the secondary pollutants that may be generated during the preliminary emergency treatment and repair process.
6.2.2 Point and depth layout
For a single source of damage, a short damage time, a small amount of pollutant discharge, a limited scope of suspected damage, or the scope of pollutant migration and diffusion
Relatively minor circumstances, according to the location where the pollution ...
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