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Heavy metal seawater aquatic organism water quality reference value derivation method

A technology for water quality benchmarks and aquatic organisms, applied in general water supply conservation, instruments, data processing applications, etc., can solve problems such as difficult water ecosystem protection and insufficient consideration of water ecosystem characteristics, and achieve highly targeted effects

Pending Publication Date: 2020-10-30
TIANJIN UNIV
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Problems solved by technology

It can be seen that the characteristics of my country's own water ecosystem have not been fully considered in the process of formulating the two standards, and it is difficult to effectively provide appropriate protection for my country's water ecosystem.

Method used

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  • Heavy metal seawater aquatic organism water quality reference value derivation method
  • Heavy metal seawater aquatic organism water quality reference value derivation method
  • Heavy metal seawater aquatic organism water quality reference value derivation method

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Embodiment 1

[0073] The present embodiment takes zinc as an example, and calculates the water quality benchmark low value (LSWC) and the water quality benchmark high value (HSWC) based on the protection of Bohai Bay aquatic animals' zinc, and the specific steps are as follows:

[0074] 1. Collection and screening of toxicity data

[0075] Based on literature search (such as the US Environmental Protection Agency) and local measured data, the toxicity data of Bohai Bay native species is not less than "3 families and 8 families", and the obtained data are screened according to HJ 831-2017. During the data screening, two groups of researchers independently completed the data screening of the above toxicology database and the extraction and screening of Chinese and English literature data. If the two groups of researchers have ambiguity about the data, they will discuss it together or organize expert consultation to make a decision. The screening principles are as follows:

[0076] (1) The ex...

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Abstract

The invention discloses a heavy metal seawater aquatic organism water quality reference value derivation method. The method comprises the following steps: collecting and screening toxicity data, screening tested species, and correcting the hardness of a water body; importing the corrected toxicity data into an SSDToolbox, taking a toxicity value as an abscissa, and taking cumulative probability asan ordinate, determining an optimal fitting model according to a K-S inspection result to obtain acute / chronic 5% species hazard concentration (HC5), and performing reference extrapolation to obtaina sea area water quality reference high value (HSWC) / low value (LSWC). In the derivation process, the influence of environmental factors on toxicity under sea area features is fully considered, the heavy metal seawater aquatic organism water quality reference value derivation method which is high in area pertinence and adapts to the current water environment management requirement is provided, themethod is more suitable for the current water environment management requirement of China, and over-protection and under-protection can be effectively avoided.

Description

technical field [0001] The invention belongs to the technical field of water quality benchmark estimation, and in particular relates to a method for deriving a water quality benchmark value of heavy metal seawater aquatic organisms. Background technique [0002] As the sink of most land-based pollutants discharged into the sea, the coastal waters are under enormous environmental pressure. According to the opinions of the Marine Environmental Protection Scientific Expert Group (GESA-MP), sea water quality benchmarks are defined as the objectively measured water quality standards in various marine environmental media within a certain time and space range according to the requirements of sea area use, marine ecosystems, and human health. The scientific index system of the allowable pollutant concentration or content. In the sustainable utilization of marine resources and the practice of marine environmental protection, sea water quality standards play a fundamental supporting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/26
CPCG06Q10/06393G06Q50/26Y02A20/152
Inventor 刘宪华刘思彤李嘉垚
Owner TIANJIN UNIV
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