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Method for evaluating environmental risk of petroleum pollutants in fishing environment

A technology of environmental risk and evaluation method, applied in the field of environmental risk evaluation of petroleum pollutants in fishery environment, can solve the problems of death of breeding objects, destruction of living environment of organisms, red tide, etc., and achieve the effect of simplifying complexity

Active Publication Date: 2015-07-01
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Petroleum pollutants affect the ecological environment. After the volatilized oil and gas are irradiated by the sun, physical and chemical reactions will occur, which will produce carcinogens and greenhouse effects, and may lead to red tides.
At the same time, petroleum pollutants have a huge impact on the growth and reproduction of aquatic animals and plants and the entire ecosystem. They can inhibit photosynthesis, reduce the oxygen content in seawater, destroy the living environment of organisms, and cause the gradual decline of fishery resources. And Deteriorated water quality will lead to a large number of deaths of breeding objects, even if the organisms survive, they will be polluted and cannot be eaten by humans
In addition, petroleum pollutants can be enriched in the human body through the food chain, seriously endangering human health

Method used

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  • Method for evaluating environmental risk of petroleum pollutants in fishing environment
  • Method for evaluating environmental risk of petroleum pollutants in fishing environment
  • Method for evaluating environmental risk of petroleum pollutants in fishing environment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1 traditional fuzzy comprehensive evaluation method

[0027] The following are three sets of experimental data for the first-level indicators:

[0028] Organism mg / kg

[0029] According to the enrichment factor BCF=organisms / seawater, where BCF=300, seawater is converted into organisms:

[0030]

[0031] Conversion of sediments to organisms is based on correlation coefficient = organisms / sediment, where correlation coefficient = 0.03:

[0032]

[0033] According to the evaluation criteria:

[0034] If ci≤V1, the matrix is ​​(1 0 0 0 0);

[0035] If V1

[0036] If V2

[0037] If V3

[0038] If V4

[0039] If ci≥V5, the matrix is ​​(0 0 0 0 1)

[0040] Calculate the single factor evaluation matrix of the organism

[0041] (1.00 0.00 0.00 0.00 0.00)

[0042] (0.60 0.40 0.00 0.00 0.00)

[0043] (0.00 0.88 0.13 0.00 0.00)

[0044] (0.00 0.00 0.50 0.50 0.00)

[0045] (0.00 0.00 0.00 0.86 0.14)

[0046] (0.00 0.00 0.00 0.00 1.00)

[004...

Embodiment 2

[0054] A method for environmental risk assessment of petroleum pollutants in a fishery environment, the specific steps are as follows:

[0055] (1) Establish factor set

[0056] The factor set U is a set of various factors that affect the environmental risk assessment of petroleum pollutants in the fishery environment. The factor set is divided into three levels, of which the first level refers to the medium of organisms, water bodies and sediments; the second level refers to oil pollution factors (Petroleum is a mixture, Level II refers to indicators related to oil pollution), Level III refers to specific indicators of oil pollution in different media, such as petroleum hydrocarbons, polychlorinated biphenyls, etc. This evaluation method is to achieve rapid evaluation, only The concentration of petroleum hydrocarbons is used to represent the level of petroleum pollution, and the third-level factors are shown in figure 1 .

[0057] The factor set U is a set composed of various...

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Abstract

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.

Description

technical field [0001] The invention belongs to the technical field of environmental risk assessment, and in particular relates to an environmental risk assessment method for petroleum pollutants in a fishery environment. technical background [0002] With the rapid development of our country's social economy, the fishery ecological environment has been more and more seriously polluted and destroyed. The main causes of serious damage to the fishery ecological environment are physical factors such as construction projects and chemical factors such as pollutant leakage and discharge, and petroleum pollutants are an important factor affecting chemical pollution. Petroleum pollutants mainly come from the pollution caused by leakage and oil discharge during the exploitation, transportation, loading and unloading, processing and use of petroleum. In December 2012, my country's oil imports surpassed that of the United States for the first time, becoming the world's largest oil imp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 崔正国陈碧鹃夏斌曲克明丁东生
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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