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A calculation method and application of arsenic risk control value in soil

A technology of risk control and calculation method, applied in the direction of health index calculation, computational theoretical chemistry, computer-aided medical procedures, etc., to achieve the effect of scientific and reasonable risk control value, avoiding excessive repair and economic waste

Active Publication Date: 2022-06-14
北京市生态环境保护科学研究院
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the risk assessment method specified in the current national and local guidelines is not valid for the calculation of the risk control value of arsenic in soil

Method used

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  • A calculation method and application of arsenic risk control value in soil
  • A calculation method and application of arsenic risk control value in soil
  • A calculation method and application of arsenic risk control value in soil

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Experimental program
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Effect test

Embodiment 1

[0071] The concentration limit of arsenic in my country's existing "Drinking Water Quality Standards" (GB5749-2006) is 10 μg / L, and the concentration limit of arsenic in "Ambient Air Quality Standards" (GB 3095-2012) is 0.006 μg / m 3 . 10μg / L and 0.006μg / m respectively 3 As the exposure concentration of arsenic in drinking water and ambient air, the oral intake route of arsenic is calculated based on the parameters recommended in the first category of land use scenarios in the "Technical Guidelines for Soil Pollution Risk Assessment of Construction Land" (HJ25.3-2019) The equivalent doses of the carcinogenic effects of the skin contact route and the respiratory inhalation route are 0.0766 μg / kg / d, 0.0766 μg / kg / d, and 0.000618 μg / kg / d, respectively, and the oral intake is reversed based on the equivalent dose The soil arsenic risk control values ​​of the route, skin contact route, and inhalation route were 59.91 mg / kg, 624.42 mg / kg, and 92.66 mg / kg respectively, and the final s...

Embodiment 2

[0097] comparative example

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Abstract

The invention discloses a method for calculating the risk control value of arsenic in soil and its application. The calculation method includes the following steps: S1, calculating the equivalent dose of each route based on different media; S2, calculating the equivalent dose of each route based on the equivalent dose Soil risk control value; S3, calculating the total soil risk control value Cs based on the equivalent dose. The calculation method of the present invention is based on the equivalent dosage of different media, and provides a basis for formulating the soil remediation target value of the arsenic-contaminated site in my country, and avoids excessive remediation of the polluted site.

Description

technical field [0001] The invention belongs to the technical field of risk assessment of contaminated sites, and in particular relates to a calculation method and application of arsenic risk control values ​​in soil based on equivalent doses of different media. Background technique [0002] Since the first introduction of risk assessment methods and concepts in 2000, the risk assessment of contaminated sites in my country has gone through nearly 20 years and accumulated a lot of application experience, but many problems have also been found in practice. [0003] Arsenic is a common pollutant in industrially polluted sites in my country, and it is also a background element in the earth's crust. The mining and smelting of arsenic and arsenic-containing metals, the production of glass, pigments, technical materials, and paper using arsenic or arsenic compounds as raw materials, and the burning of coal can all produce arsenic-containing waste water, waste gas and waste residue,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G16C10/00G16H50/30
CPCG16C10/00G16H50/30
Inventor 夏天翔贾晓洋
Owner 北京市生态环境保护科学研究院
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