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Selenium water quality standard derivation method and water quality safety evaluation method

A technology for water quality benchmarks and aquatic organisms, applied in the direction of testing water, measuring devices, instruments, etc., can solve problems such as inability to protect aquatic organisms, difficulty in obtaining water quality benchmark data, etc., and achieve the effect of protecting water ecosystems

Inactive Publication Date: 2017-05-31
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Regarding the water quality benchmark method of selenium, the tissue-based toxicity data of selenium has not been used to deduce the water quality benchmark of selenium, so it is difficult to obtain more effective water quality benchmark data of selenium, which may not be able to protect aquatic organisms very well

Method used

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  • Selenium water quality standard derivation method and water quality safety evaluation method
  • Selenium water quality standard derivation method and water quality safety evaluation method
  • Selenium water quality standard derivation method and water quality safety evaluation method

Examples

Experimental program
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Embodiment 1

[0030] The water quality standard derivation method and the water quality safety evaluation method of selenium include the following steps:

[0031] (1) Step 1. Collect the toxicity data (NOED) based on aquatic biological tissues of selenium from the ERED tissue-effect database for analysis and screening. For data with LOED but no NOED, use the formula NOED=LOED÷2 to calculate NOED, toxicity data As shown in table 2;

[0032] Table 1 Tissue-based toxicity data for selenium (mg / kg)

[0033]

[0034]

[0035]

[0036] (2) Step 2: Analyze the quality and quantity of the toxicity data obtained, and determine whether the minimum data requirements are met;

[0037] In this example, a total of 31 toxicity data were used, including 26 vertebrate, 4 invertebrate and 1 plant data.

[0038] (3) Step 3, using the species sensitivity distribution method to simulate the NOED obtained after finishing;

[0039] Such as figure 1 shown. Calculation of tissue-based baseline values ...

Embodiment 2

[0045] The water quality standard derivation method and the water quality safety evaluation method of selenium include the following steps:

[0046] (1) Step 1. Collect the toxicity data (NOED) based on aquatic biological tissues of selenium from the ERED tissue-effect database for analysis and screening. For data with LOED but no NOED, use the formula NOED=LOED÷2 to calculate NOED, toxicity data As shown in table 2;

[0047] Table 2 Selenium based tissue toxicity data (mg / kg)

[0048]

[0049]

[0050] (2) Step 2: Analyze the quality and quantity of the toxicity data obtained, and determine whether the minimum data requirements are met;

[0051] In this example, a total of 15 toxicity data were used, including 10 vertebrate, 4 invertebrate and 1 plant data.

[0052] (3) Step 3, using the species sensitivity distribution method to simulate the NOED obtained after finishing;

[0053] Such as figure 2 shown. Calculation of tissue-based baseline values ​​(HC for 95% o...

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Abstract

The invention discloses a water quality reference derivation method for selenium and a water quality safety evaluation method. According to the method, the reference based on tissues is derived through toxicity data based on tissues, and then biological accumulation factors of representative species are used for converting the reference based on the tissues into a water quality reference based on water. By means of the water quality reference derivation method for selenium and the water quality safety evaluation method, the aquatic organism protecting water quality reference of accumulative substances is determined scientifically, the defects that the traditional water quality reference does not take biological accumulation and biological effectiveness into consideration are avoided, and the water ecosystem of China can be protected more scientifically.

Description

technical field [0001] The invention belongs to the technical field of water quality safety evaluation, and in particular relates to a selenium water quality benchmark derivation method and a water quality safety evaluation method. Background technique [0002] Water quality standards are an important criterion for water environment management. As the basis for scientifically formulating water quality standards, water quality benchmarks are an important research content and major scientific and technological demand in the field of environment in my country. One of the important connotations of water quality benchmarks is that they are regional, and the scientific determination of benchmarks needs to be combined with the characteristics of the country's natural environment. my country's ecological environment characteristics and pollution type characteristics are significantly different from those of foreign countries, and foreign water quality standards are not necessarily ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/18G01N33/50
CPCG01N33/18G01N33/5014
Inventor 苏海磊吴丰昌郭飞孙福红
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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