Method for measuring pollutant ecological toxic effect threshold concentration through microcosm periodical biomass

A technology of pollutant concentration and toxic effect, applied in testing water, measuring devices, instruments, etc., can solve problems such as the reliability of measuring the threshold concentration of toxic effects of pollutants, so as to facilitate popularization and use, improve reliability, and improve ecological relevance. Effect

Active Publication Date: 2017-03-15
NANJING UNIV OF INFORMATION SCI & TECH
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Problems solved by technology

[0004] At present, there is no relevant report on the use of microcosmic cycle biomass to improve the reliability of the threshold concentration of pollutant toxicity effects measured by microcosmic technology

Method used

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  • Method for measuring pollutant ecological toxic effect threshold concentration through microcosm periodical biomass
  • Method for measuring pollutant ecological toxic effect threshold concentration through microcosm periodical biomass

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Embodiment Construction

[0040] Attached below figure 1 , 2 The present invention is further described, wherein the attached figure 2 middle Indicates feeding relationship, represent a competitive relationship, Indicates that there is a density constraint, Indicates that the population has food sources outside the system.

[0041] With the present invention, based on the plankton population toxicity effect experiment, the model parameters are obtained, the microcosm community model is constructed, the average biomass of the microcosm community period is calculated under a certain pollutant concentration, and then the pollutant threshold concentration is calculated. The scientificity of the method can be evaluated by analyzing the goodness of fit of the model and verifying the calculation results of the threshold concentration through the results of microcosm control experiments.

[0042] 1. Ecotoxicity effect experiment and parameter acquisition:

[0043] (1) Toxic effect experiment of sin...

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Abstract

The invention discloses a method for measuring a pollutant ecological toxic effect threshold concentration through microcosm periodical biomass. According to the method, based on a population-level toxic effect testing result, a microcosm model is structured through inter-population ecological relation to correlate a population-level reaction endpoint with a community-level reaction endpoint; through the quantitative relation between population-level pollutant concentration and toxic effects, a quantitative relation between community-level pollutant concentration and the toxic effects can be structured; taking whether microcosm community periodical biomass at a certain pollutant concentration deviates from control microcosm community periodical biomass as threshold concentration criteria, the pollutant ecological toxic effect threshold concentration can be calculated. The method for measuring the pollutant ecological toxic effect threshold concentration through microcosm periodical biomass can help perfect pollutant water quality criteria deduction methods, lay a solid scientific foundation of water quality criteria setting, avoid environmental underprotection or overprotection caused by water quality criteria setting and ensure harmonic economic and ecological environment development.

Description

technical field [0001] The invention relates to a method for measuring and calculating the threshold concentration of ecological toxicity effect of environmental pollutants based on microcosmic cycle biomass, and relates to a method for measuring and calculating the threshold concentration of ecological toxicity effect of water environment pollutants. Background technique [0002] The core of the water quality standard is the dose-effect relationship, and its basic link is the determination method of the threshold concentration of the pollutant's ecotoxicity effect. Internationally influential institutions and organizations, such as the United States Environmental Protection Agency (USEPA), the European Union Joint Research Center (EUC) and the Organization for Economic Cooperation and Cooperation (OECD), are all studying more complete methods for calculating the threshold concentration of pollutants. The "Technical Guidelines" issued by organizations such as USEPA, EUC, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/18
CPCG01N33/1866
Inventor 王长友
Owner NANJING UNIV OF INFORMATION SCI & TECH
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