Derivation method of water quality standard for protection of wild life by dieldrin

A water quality standard and dieldrin technology, which is used in the derivation of water quality standards for wildlife protection, can solve the problems of inability to protect wildlife, too many toxicity data, and inability to fit sensitivity distributions.

Inactive Publication Date: 2017-05-31
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Problems solved by technology

The evaluation factor method uses the most sensitive toxicity data and has a large uncertainty
However, the species sensitivity distribution method requires more toxicity data, and because the toxicity data of wild organisms is less, it generally cannot meet the needs of fitting the sensitivity distribution.
[0004] As for the water quality standard for the protection of wild life by dieldrin, the data on the toxicity of dieldrin to wild life has not been used to derive the water quality standard for the protection of wild life by dieldrin, so it is difficult to obtain a more effective water quality for the protection of wild life by dieldrin Standard data, and thus can not protect wildlife well

Method used

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  • Derivation method of water quality standard for protection of wild life by dieldrin
  • Derivation method of water quality standard for protection of wild life by dieldrin
  • Derivation method of water quality standard for protection of wild life by dieldrin

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Embodiment Construction

[0033] The derivation method of the water quality standard for the protection of wild life of dieldrin comprises the following steps:

[0034] (1) Step 1. Collect and organize the toxicity data of dieldrin on birds and mammals. For the data with only LOAEL and no NOAEL, NOAEL=LOAEL÷2, the screening results are shown in Table 1 and Table 2;

[0035] Table 1 Toxicity data of dieldrin to birds

[0036]

[0037] Note: a=mg / kg-day; b=μg / kg-day

[0038] Table 2 Toxicity data of dieldrin to mammals

[0039]

[0040]

[0041] Note: a=mg / kg-day; b=μg / kg-day

[0042] (2) Step 2, use the toxicity percentage sorting method, i.e. formulas (1) to (4), to calculate the TDI values ​​of dieldrin to birds and mammals respectively, and the relevant calculation parameters are shown in Table 3 and Table 4;

[0043]

[0044]

[0045]

[0046] TDI=e A (4)

[0047] Among them, FI: food ingestion rate, ingestion rate;

[0048] BW: body weight, body weight;

[0049] BAF: bioaccu...

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Abstract

The invention discloses a derivation method for a wildlife protection water quality standard of dieldrin.The method comprises the steps that firstly, a tissue residue standard of cumulative substances is derived through a toxicity percentage ranking method; secondly, a biological cumulative factor of a representative species is selected, and the tissue residue standard is converted into a water quality standard; finally, the water quality standard for wildlife protection in China is determined according to the content level of the substance in a water body in China.According to the method, the biological cumulativity and effectiveness of the dieldrin are taken into account, and a direct support role can be supplied to water environment management and risk evaluation in China.

Description

technical field [0001] The invention belongs to the technical field of water quality safety evaluation, and in particular relates to a method for deriving water quality standards for the protection of wild organisms by dieldrin. Background technique [0002] Water quality standards are the scientific basis for water environment management and play an irreplaceable role in environmental management. Water quality benchmarks are the basis for scientific determination of water quality standards, and are research hotspots in the field of environment. Bioaccumulative and persistent pollutants can bioaccumulate through the food chain, thus causing serious harm to wild organisms with high trophic levels. Water quality benchmarks for a variety of pollutants have been intensively studied, but traditional water quality benchmarks are derived using water-based toxicity data. For substances with bioaccumulative properties, the accumulative effect of organisms on the substance and the b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 吴丰昌苏海磊孙福红郭飞
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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