80 results about "Environmental risk assessment" patented technology

A method and system for automating the assessment and determination of environmental risks for properties and regions. Property attribute and characteristic data is aggregated from multiple databases and indexed by a parcel identifier, such as an assessor's parcel number (APN). Environmental data from various databases, such as Federal, State, County, Parrish, Municipality / Town, Tribal, etc. is also retrieved and linked to parcels. An environmental risk assessment score may be calculated based on various attribute, characteristic, and environmental data associated with a given parcel, a parcel and adjacent properties, and / or selected areas or regions. Environmental risk assessment maps may also be generated.

The invention discloses a method for determining influence of exogenous dsRNA on toxicity of ladybugs. The method comprises the following specific steps: uniformly mixing the exogenous dsRNA into a sucrose solution, directly feeding the ladybugs for 2-3 days and then feeding with pea aphids; then detecting and analyzing the expression changes of target genes in the ladybugs, and observing the biological changes of the ladybugs so as to evaluate the toxicity of the exogenous dsRNA to the ladybugs, wherein the ladybugs include harmonia axyridis, coccinella septempunctata or henosepilachna pusillanima. By the method, direct influence of the exogenous dsRNA on the toxicity of the harmonia axyridis, the coccinella septempunctata or the henosepilachna pusillanima or other ladybugs can be effectively determined; in addition, the method is simple, feasible and high in effectiveness and sensitivity, and has a great significance and an application prospect in study on functions of related genesas well as environmental risk assessment on related RNAi transgenic crops.

The invention discloses a method for rapidly identifying an environmental risk of a power transmission and transformation project. The method comprises the following steps of: modeling spatial data information which comprises a map, a line route, a sensitive area position boundary and the like according to an object-oriented data model; establishing corresponding spatial database and attribute database; querying related data of a sensitive area meeting the condition in the attribute database by adopting a standard Structure Query Language (SQL); screening a spatial entity identifier meeting the condition; entering the spatial database; and searching a corresponding spatial entity according to the identifier so as to realize automatic identification statistics, analysis and early warning, and planning and comparison of the sensitive area, and further complete the environmental risk assessment and environmental optimization of power transmission and transformation project construction.

The invention provides an area integrated environment risk evaluation and portioning method, for reflecting the environment risk status of an area. The method comprises the following steps: obtaining area environment risk correlation information, and according to an area integrated environment risk system theory, through combination with the obtained area environment risk correlation information, constructing an area integrated environment risk evaluation index system, wherein the index system comprises a risk source harm index, a risk field intensity index, a risk acceptor vulnerability index and a risk control mechanism validity index; determining an index weight and quantification model of the index system; according to the determined index weight and quantification model of the index system, obtaining an area integrated environment risk index; and according to the area integrated environment risk index, performing risk partitioning on the area so as to obtain an area integrated environment risk partitioning graph. The method provided by the invention is applied to the field of environment science and environment risks.

The invention provides a risk fuzzy synthetic evaluation method for a regional water environment. The method includes the steps that a membership degree function is established according to the hierarchical structure relation of a target level, a system level, a criterion level and an index level, and the membership degrees of indexes of a regional water environment risk evaluation index system to estimation scales are worked out; a structural model is established according to the hierarchical relation of the index system, and a fuzzy relation matrix is established through the relative membership degree function; a final evaluation result is determined based on the maximum membership degree principle. By means of the technical scheme, the regional water environment can be evaluated more accurately to provide an accurate basis for decision making.

The invention provides a regional comprehensive environmental risk assessment and division method. The environmental risk assessment and division can be regionally carried out to a large extent. The regional comprehensive environmental risk assessment and division method is characterized in that the essential factors of the environmental risks can be analyzed according to the regional comprehensive environmental risk system theory; a regional environmental risk assessment index system can be built, and the essential factors comprise risk sources, risk control mechanisms, risk fields, and risk receptors; the weight values and the assessment values of various indexes in the assessment index system can be determined based on the built assessment index system; the comprehensive environmental risk value of the assessment region can be acquired according to the weight values and the assessment values of various indexes of the assessment index system; the risk division of the assessment region can be carried out according to the preset classification method according to the comprehensive environmental risk value of the assessment region. The regional comprehensive environmental risk assessment and division method is suitable for the environmental science and technology field.

The invention relates to a driving environment risk assessment method which comprises the steps of obtaining current data of a to-be-evaluated driving environment, and obtaining a current risk level of the to-be-evaluated driving environment based on a risk assessment model corresponding to the to-be-evaluated driving environment according to the current data. Due to the fact that the obtained current data of the driving environment to be evaluated comprise one or more of the following dimensions: map data, traffic data, vehicle enterprise data, driver data, weather data and accident data, thedata dimension source is wider, the data are combined to evaluate the risk of the driving environment, and the early warning effect is more accurate.

The invention discloses a plaque image and pollution feature coupling method for use in environmental risk assessment of regional tailing ponds; the method comprises: acquiring tailing pond environmental information of multi-source multi-dimensional plaque images and pollution features; cutting, assembling and integrating the multi-source multi-dimensional plaque images of the tailing ponds; establishing a plaque image and pollution feature data coupled model according to coupling association of spatial interpolation simulation, spatial data and attribute data; constructing a regional tailing pond environmental risk assessment index system that includes: quantitatively classifying regional tailing pond environmental risk values, using ArcGIS as an aid in conjunction with tailing pond environmental risk grading and accumulative environmental risk investigation results, using spatial representation technique to carry out key region accumulative environmental risk and tailing pond environmental risk quantitative assessment, and regionally dividing environmental risks of multiple tailing ponds in the region. The environmental risk assessment can be performed on the multiple tailing ponds in the region more accurately, and accurate basis is provided for the joint prevention and joint control decision-making for regional tailing ponds.

The invention belongs to the technical field of pollutant monitoring, early warning and tracing system construction methods, in particular to a refinery enterprise atmospheric pollutant monitoring, early warning and traceability system construction method. The refinery enterprise atmospheric pollutant monitoring, early warning and traceability system construction method comprises the following steps of: S1, enterprise environmental risk assessment; S2, monitoring station construction, specifically, based on monitoring factors and risk units determined in the step S1, carrying out monitoring point position arrangement and monitoring instrument selection to form a pollutant monitoring system in which a plurality of monitoring instruments are jointly applied; and S3, tracing and early warninginformatization platform construction. According to the refinery enterprise atmospheric pollutant monitoring, early warning and tracing system construction method provided by the invention, monitoring factors capable of representing refinery enterprise pollution characteristics are selected; by means of various high-sensitivity devices, a production unit fingerprint spectrum technology and a pollutant source analysis technology, an omnibearing atmospheric pollutant monitoring, early warning and tracing system is formed, and a novel pollution prevention and treatment mode for refinery enterprises is established.

The invention discloses a dangerous chemical road transportation drainage basin water environment risk assessment method, which adopts an environment sensitive receptor influence derivation method, takes an environment sensitive receptor as an assessment basis, screens an environment risk road section according to the influence degree of dangerous chemical leakage to be transported on the environment sensitive receptor, and grades the environment risk road section; identifies a plurality of environmental risk road sections according to the drafted hazardous chemical substance transportation route, and then performs the environmental risk assessment and environmental risk grade division one by one on the road sections to serve as an auxiliary decision basis for finally determining a hazardous chemical substance transportation route scheme. The invention further discloses a dangerous chemical road transportation drainage basin water environment risk assessment system. An environment riskassessment module identifies an environment risk receptor around the leakage path, an environment risk source and environment risk substance information; the risk source identified by the environmentrisk identification sub-module is evaluated on the basis of an environment risk source evaluation method, the environment risk level of the risk source is evaluated, and the decision-making module isassisted to realize the prediction simulation of the sudden environment event.

The invention discloses an experiment system and method for simulating the influence of spilled oil weathering on the water quality. The system comprises an experiment device capable of simulating spilled oil weathering on water quality in a small scale, an oil spilling case comparing module and data base, a suitable region matching module and data base, and a water quality evaluation module. A dedicated experiment method is also provided. The system is used to simulate the influence of spilled oil weathering including spilled oil dispersion in a scaled simulation environment; the experimental results in the presence of a specific oil product under a scaled simulation environment can be calculated and converted, thus the water quality index change in difference phases due to the weathering of spilled oil in real environment can be measured, and the influence degree and range can also be determined. The provided experiment system and method can determine the damage of oil spilling and oil dispersion to the environment, can evaluate the environment influence and environment risk, and provide reference and technical support for pollution prevention, emergency disposal, and environmental restoration.

The invention discloses an environment risk quantitative management method of an oil gas long-distance pipeline and belongs to the technical field of environment protection. Related data of technology design parameters of a pipeline in an inspection section, pipeline directions, landforms of the periphery of an environmental sensitive area, land utilization, weather, soil, water, population distribution and development plans are collected, an indicator system is established in the aspects of pipeline corrosion, third-party damage, misoperation and operating parameters to represent the possibility of environment accidents, and evaluation criteria and corresponding weights of indicators are established; environmental sensitivity grading is conducted on environment sensitive points, and environmental sensitivity assessment results serve as 1-2 weights; the leaking quantity levels are evaluated according to flow, and the weight is determined; corresponding indicators are selected according to scattering degrees after accidents occur, ecosystem types, ecological environment sensitivity and the like to reflect the environmental hazard consequences of the accidents, a pipeline environmental risk assessment indicator system is established, and the evaluation criteria and the corresponding weights of the indicators are established.

The invention provides a petrochemical enterprise risk environmental management system. The system comprises an environmental risk assessment module, an environmental hidden danger module, an environmental risk early warning module, an environmental emergency module and an aid decision making module. The system can help the enterprises to carry out the jobs such as environmental risk daily management, in-advance early warning and environmental emergency disposal, so as to improve the environmental risk management level.

The present invention relates to the power equipment technology, and particularly relates to an LS_SVM and PCA-based overhead power transmission line risk assessment method. The method comprises the steps of 1, extracting the statistic features of all technical factors, performing the data pre-processing operation; 2, subjecting the processed statistic features to dimension-reduction treatment through the principal component analysis, and selecting n critical statistic features; 3, adopting one part of samples containing n critical statistic features as training data to be input into LS_SVM for training purpose, then constructing a classifier and establishing an LS_SVM model for the overall risk assessment of the operation environment of an overhead transmission line; adopting the rest samples containing n critical statistic features as test data for testing purpose, comparing the test data with an original evaluation result and obtaining a prediction accuracy; 4, inputting newly obtained overhead transmission line statistic features input the risk assessment LS_SVM model established in the step 3, and obtaining a new level for evaluating the risk state of the overhead power transmission line. In this way, the risk assessment method for the operation environment of the overhead transmission line is simplified, and both the difficulty and the complexity are reduced.

The invention provides a method for evaluating the environmental risk of petroleum pollutants in a fishing environment and belongs to the technical field of environmental risk evaluation. The method comprises (1) establishing a factor set, (2) establishing an evaluation set, and (3) substituting original data into three-major indicator risk index mathematical model, obtaining a final risk index and judging a risk grade by use of a judgment formula. The invention provides a final risk prediction method for evaluating the environmental risk of the petroleum pollutants in the marine and fishing environments. The final risk index can be calculated by inputting the monitoring data of petroleum pollutants in three mediums, namely living organisms, water and sediment. Due to good degree of fitting of a prediction model established by use of a nonlinear regression model, the deviation between a predicted value and the final risk index obtained from the practical monitoring data is small and the average residual of the model does not exceed 4.

The invention provides a combined application method of regional environmental risk assessment zoning, regional environmental risk bearing capacity and a GIS (geographic information system) platform with intuitiveness, accuracy and a wide application range for the regional layout optimization and adjustment according to the status of the current environmental risk control and management techniques, which aims at that the basis for the adjustment and the optimization in the current regional layout optimization and adjustment is short of a theoretical and quantitative basis. The method comprises the following steps: gathering environmental risk bearing capacity assessment index data according to the proposed environmental risk bearing capacity-based conception and a quantification method, calculating the environmental risk bearing capacity of researching regions, and realizing the display of the spatial distribution of the environmental risk bearing capacity through the GIS platform; analyzing risk sources in the regions, analyzing the positions of the risk sources, and the species and the stored quantity of risk materials of the risk sources, carrying out assessment on the degree of contamination and the range of influence on the atmosphere and water bodies caused by the leakage of pollutants according the improved Gaussian model and the pollutant-water body one-dimensional diffusion model so as to obtain the risk fields of the risk sources, and equally realizing the display of the spatial distribution of the risk fields through the GIS platform; carrying out superposition on the regional environmental risk bearing capacity and the regional environmental risk fields in a GIS, and realizing the conflict analysis of regional environmental risk-risk bearing; and proposing an adjustment scheme for regions with risk-bearing conflicts according to the rules of the layout optimization adjustment.

The invention provides a regional water environment risk zoning method comprising the steps that a driving force factor, a pressure factor, a state factor, an impact factor and a response factor of a DPSIR module are determined; a regional water environment risk assessment index system is constructed, and the constructed regional water environment risk assessment index system comprises a target layer, a system layer, a criterion layer and an index layer which reflect the regional water environment risk from different angles; the weight of each index is calculated by using the analytic hierarchy process and value assignment is performed, and then all the index systems are quantitatively graded; then the regional water environment risk value is calculated through a fuzzy comprehensive evaluation method; and the regions are divided into a high-risk region, a medium-risk region, a low-risk region and a no-risk region in a decreasing order according to the risk with ArcGIS acting as an auxiliary tool. According to the scheme, the regional water environment can be more accurately assessed so as to provide accurate basis for decision.

The invention provides a coal mine underground reservoir environment risk assessment method. The method comprises the following steps: analyzing coal rock physical and mechanical property parameters of an underground reservoir and wastewater components in the underground reservoir; obtaining goaf surrounding rock fracture form data and fracture development characteristic data; obtaining surrounding rock stress displacement and failure evolution rules according to the surrounding rock fracture form data and the fracture development characteristic data; determining a wastewater seepage range anda seepage path according to the physical and mechanical property parameters of the coal rock and the surrounding rock stress displacement and failure evolution rule; and determining the risk index ofenvironmental pollution of the wastewater in the underground reservoir to the surrounding underground water area according to the wastewater seepage range, the seepage path and the wastewater components. According to the scheme, the environmental risk of the coal mine underground reservoir wastewater storage technology is judged through a method of combining similarity simulation, numerical simulation and field measurement.

The invention belongs to the technical field of environmental protection chemical technology, and specifically relates to a method for determining an occurrence state of mercury in a desulfurization by-product. The invention discloses a method for analyzing the occurrence state of mercury in the desulfurization by-product, wherein the method comprises: carrying out grinding screening on a sample requiring detection, sequentially adding deionized water, a CH3COOH and HCl mixing solution, a H2O2 solution, and an aqua regia (a ratio of HCl to HNO3 is 3:1) solution, and respectively determining water soluble state mercury content, weak acid extractable state mercury content, oxidable state mercury content and residual state mercury content in the desulfurization by-product. According to the method, the high extraction proportion of mercury in the desulfurization by-product is achieved, mercury with different forms can be progressively and accurately extracted, and theoretical basis can be provided for environmental risk assessment of the comprehensive desulfurization by-product utilization process.

The invention discloses a method for semi-quantitatively evaluating the environmental risk of a chemical industrial park. The method comprises the steps of constructing a hierarchical structure modelfor park planning environment risk assessment; obtaining an industrial structure environment hazard unit score, a unit score of an environment management compensation unit, an atmospheric environmentvulnerability evaluation index score, a water environment vulnerability index score, an atmospheric environment influence evaluation index score and a water environment influence index score in the hierarchical structure model; calculating an environmental risk comprehensive score of park planning, and dividing park planning environmental risk level according to the environmental risk comprehensive score of park planning. According to the method, the reasonability of the planning and positioning of the chemical industrial park can be judged in an auxiliary manner, the adjustment and optimization of the scale, layout and industrial positioning of the chemical industrial park can be effectively guided, and the effect of preventing the environmental risk in the early stage of planning environmental assessment is improved.

The invention belongs to the field of environmental risk assessment and particularly relates to an evaluation method of risk levels of dangerous substances of a mining industry. The evaluation method of the risk levels of the dangerous substances of the mining industry is characterized by firstly utilizing a dangerous substance risk level function, an ore bed safety degree function, a tailing pond safety risk level function and a corporate environmental management risk level function to compute a substance risk numerical value M, an ore bed safety risk numerical value K, a tailing pond safety risk numerical value W, and a corporate environmental management risk numerical value G, and then substituting the numerical value M, the numerical value K, the numerical value W and the numerical value G into a mining industry environment total risk level function for computation to obtain a mining industry environment total risk level rating numerical value I. The evaluation method of the risk levels of the dangerous substances of the mining industry achieves quantitative computation of the evaluation of risk sources of mining industry environments, standardization and scientization of the evaluation can be obtained and the evaluation results are reliable.

The invention belongs to the field of environmental risk evaluation, and particularly discloses an evaluation method for an environmental risk source of the manufacturing industry. The evaluation method comprise the following steps: calculating a substance risk value M, a production process risk value P, a risk value E of equipment and facilities and an enterprise management risk value G by using a hazardous substance risk degree evaluation function, a production process risk degree evaluation function, an equipment and facility risk degree evaluation function and an enterprise management risk level evaluation function respectively; substituting the values M, P, E and G into an environmental risk source total risk grading evaluation function to calculate so as to obtain a risk level value I of the environmental risk source. According to the method, quantitative calculation for evaluation of the environmental risk source of the manufacturing industry is realized, the evaluation is normalized and scientific, and the evaluation result is reliable.

The invention discloses an enterprise cumulative environmental risk assessment system and method based on an environmental risk system, and belongs to the field of environmental science and environmental risks. The evaluation system and method are used for enterprise cumulative environmental risk evaluation. The method comprises the steps: based on an environmental risk system theory, establishingan enterprise cumulative environmental risk index evaluation model according to an enterprise cumulative environmental risk source index, an enterprise cumulative environmental risk management and control level index and an enterprise cumulative environmental risk receptor sensitivity index; and then grading the enterprise cumulative environmental risk, and evaluating the grade to which the enterprise cumulative environmental risk belongs according to the established index evaluation model. The method is not limited to a single pollutant, takes the enterprise as an evaluation object, effectively identifies the polluted enterprise with potential risks, has relatively high applicability and universality, can scientifically, systematically and accurately evaluate the cumulative environmentalrisks of the enterprise, and enriches the cumulative environmental risk evaluation theory.

The invention provides an evaluation model for environmental risks of dangerous chemical accidents. The evaluation model is used for conducting multiple-factor analysis of environmental risks for environmental risk evaluation, evolution and forecast of dangerous chemical accidents. A combined qualitative and quantitative method is used, on the basis of analyses of key risk factors, dangerous chemicals, surrounding populations, related ecological environment and facilities and the like serve as a whole system, and uncertain environmental risk models which can facilitate risk communication are constructed from the viewing angle of the environmental carrying capacity, the exposure intensity, the degree of uncertainty and the like. A multi-scale environmental risk evaluation system is established to study environmental risk dynamic evolution laws and dynamic evaluation methods of dangerous chemical accidents. The migration and transformation laws of dangerous chemicals in the environment are studied to develop dynamic evaluation of environmental risks of dangerous chemical accidents.

The invention discloses a construction method of a medium-temperature anaerobic digestion removal rate prediction model for PPCPs organic chemicals. The construction method comprises the steps of datacollection, training-set and verification-set sample compound setting, descriptor calculation, model construction and model performance evaluation. The Euclidean distances to training set samples iscalcualted by using the four descriptors, namely, DI SPm, Mor15m, HATSe and O-060, three closest training set samples are selected, and the removal efficiency type of the PPCPs to be predicted is determined according to the removal efficiency classification results of the three training set samples to the maximum extent. The model can accurately predict the removal efficiency of the PPCPs in the sludge medium-temperature anaerobic digestion process, the prediction method is simple and rapid, actual measurement and research is avoided, manpower, material resources and time are saved, and theoretical and technical support is provided for sludge efficient anaerobic digestion treatment engineering design and PPCPs environmental risk assessment.

The invention discloses a stably expressed reference gene group of harmonia axyridis with different factors and application of the reference gene group. Specifically, a scheme of a stably expressed reference gene group of harmonia axyridis with different factors is that a stably expressed reference gene group under different temperature conditions comprises 18S, 28S and GAPDH (Reduced Glyceraldehyde-Phosphate Dehydrogenase), comprises 18S, 28S and HSP90 under different light cycle conditions, comprises 18S, 28S and HSP70 at different age stages, and comprises 18S, 28S and RP49 at different tissue combinations. By adopting the reference gene group, a most stable reference gene group of harmonia axyridis under four factors is confirmed for a first time, reference gene selection bases are made for study on gene expression levels of different tissues of different ages of harmonia axyridis under different temperature conditions and different light cycle conditions, and a solid base is madefor studying gene functions of the harmonia axyridis, RNAi (Ribonucleic Acid Interfere) transgenic crop environment risk estimation, and the like.

The invention discloses a risk assessment method for a sudden drainage basin water environment of a hazardous chemical production enterprise, and the method employs an environmental sensitive receptorinfluence derivation method, takes an environmental sensitive receptor as an assessment basis, and carries out the environmental risk assessment according to the influence degree of the leakage amount of substances stored or produced in an enterprise factory on the environmental sensitive receptor. And for the region with the environmental risk, determining the environmental risk level of the region in combination with the level of the environmental sensitive receptor. And further according to the provided dangerous chemical storage planning line, taking the dangerous chemical storage planning line as an auxiliary decision-making basis for finally determining a dangerous chemical storage scheme. The invention further discloses a risk assessment system for the sudden drainage basin water environment of the hazardous chemical substance production enterprise, the risk assessment system helps the enterprise to carry out daily environment risk management, early warning, environment emergency disposal and other work, and the environment risk management level is improved. And meanwhile, the prediction simulation of an emergency environment event is realized, and the environmental emergency disposal level is improved.

The invention relates to a visualization platform and method for risk level evaluation of an enterprise emergency environment event. The visualization platform adopts a B / S architecture, uploads result data of environmental risk assessment to a data server, calls back data slices at a Web end in a service calling request form to perform visualization expression, and comprises the following modules: a database module used for establishing a platform database based on an open source GIS data server GeoServer, and storing the data collected in real time into a database; an input variable module which is used for inputting enterprise sudden environment risk factors to construct an enterprise sudden environment risk evaluation index system; a model calculation module which is used for enterprise emergency environment risk grading and safety protection distance determination; and an result output module which is used for dividing the risk levels of the enterprise environment, generating a visual expression according to the quantitative grading result of the safety prevention and control distance and rendering and displaying the visual expression at a web end.

The invention discloses a regional power grid environment risk assessment method, and relates to the technical field of power grid planning, and the method comprises the following steps: selecting a target regional environment according to an actual demand, and making a planning scheme; obtaining environment risk related information of the target area, constructing a comprehensive environment risk assessment index system of the target area, and constructing a risk assessment model according to the index system; determining the weight of each index in the risk assessment model; and carrying out grading quantification according to the indicator system to obtain an environment risk value of the target area. According to the regional power grid environment comprehensive risk assessment method, on the basis of the environment data, the power grid planning environment influence key factors are identified, the corresponding risk levels are assessed, the power grid planning environmental impact evaluation and the power transmission and transformation project are effectively combined, the planned substation site selection and line selection can be optimized, the environmental risk can be fully identified and avoided, and the environmental dispute and emergencies can be prevented and reduced.