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Method for monitoring polycyclic aromatic hydrocarbons in water body by utilizing changes of behavior intensity of green fishes

A technology for polycyclic aromatic hydrocarbons and change monitoring, applied in the direction of testing water, measuring devices, instruments, etc., can solve the problems of high cost and time consumption, unsuitable for real-time water quality early warning and detection, etc., and achieve real-time monitoring and cost saving Effect

Inactive Publication Date: 2019-04-16
SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
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Problems solved by technology

At present, the early warning and detection of polycyclic aromatic hydrocarbons are mostly through chemical methods such as chemical titration, supercritical flow chromatography and hydrogen nuclear magnetic resonance spectroscopy. and time-consuming, not suitable for real-time water quality early warning and detection needs

Method used

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  • Method for monitoring polycyclic aromatic hydrocarbons in water body by utilizing changes of behavior intensity of green fishes
  • Method for monitoring polycyclic aromatic hydrocarbons in water body by utilizing changes of behavior intensity of green fishes

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Embodiment 1

[0026] A method for monitoring polycyclic aromatic hydrocarbons in water using changes in the behavioral intensity of medaka medaka fish ( figure 1 ), including the following steps:

[0027] (1) Use the quadrupole impedance technology disclosed in patent document 201220304540.5 to collect the behavioral intensity data of medaka fish under various polycyclic aromatic hydrocarbon concentrations, and measure the concentration of polycyclic aromatic hydrocarbons in batches of 0-20 TU, and the TU is a toxicity unit , the concentration of 1TU represents the relative lethal dose LC50 of medaka fish. Correspondingly, 0.1 TU is 10% of the lethal dose. The mid-term is 7 to 14 days, and the long-term is 14 days to one month;

[0028] (2) The change of the behavior intensity of the measured organism collected in step (1) at time t and concentration C is expressed as the environmental pressure variable E, and the E=e×t×C, wherein, e is a natural constant, which can be seen It can be seen...

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Abstract

The invention relates to a method for monitoring polycyclic aromatic hydrocarbons in a water body by utilizing changes of behavior intensity of green fishes. The method comprises the following steps that 1), a water quality monitoring system based on quadrupole impedance and three-dimensional tracing technology is utilized to acquire fish behavior intensity data under various polycyclic aromatic hydrocarbon concentrations; 2) the change of the behavior intensity of to-be-tested biology acquired in the step 1) under the time t and the concentration C is expressed as an environment pressure variable E, wherein E is equal to e*t*C 3), after the environment pressure variable E in the step 2) is subjected to Kalman filtering, the behavior pattern of the fishes is divided into five changing stages; and 4), the pollution effect of the polycyclic aromatic hydrocarbons in the current water body is judged by monitoring the current behavior intensity of the green fishes. According to the method,a biological monitoring mode is adopted, a biological behavior step-by-step response model is established, which grade the response stage the biology at the current polycyclic aromatic hydrocarbon concentration is can be judged in real time, and then whether the current polycyclic aromatic hydrocarbons exceed the standard or not is judged.

Description

technical field [0001] The invention relates to the technical field of water body monitoring, in particular to a method for monitoring pollutants in the water body using a step-by-step response model constructed using changes in the behavioral intensity of medaka fish in the water body. Background technique [0002] Early warning of the toxic effects of pollutants on marine organisms and research on the indication of biomarkers are the hotspots and frontiers of marine ecotoxicology research. Among them, polycyclic aromatic hydrocarbons (PAHs) are volatile hydrocarbons produced during the incomplete combustion of organic substances such as coal, petroleum, wood, tobacco, and organic polymer compounds, and are important environmental and food pollutants. High molecular weight PAHs are easily adsorbed on the surface of particulate matter and have carcinogenic, teratogenic and mutagenic effects. PAHs can enter water bodies through various channels such as wastewater discharge, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/18
CPCG01N33/186
Inventor 刘跃丹李尚戈潘宏伟刘晓伟汪浩范中亚杨汉杰王文才刘祚屹陈相林
Owner SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
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