Water quality criterion derivation method for human health protection and safety evaluation method of water quality of drinking water source region

Abstract

The invention belongs to the technical field of water quality safety evaluation and particularly relates to a water quality criterion derivation method for human health protection and a safety evaluation method of water quality of a drinking water source region. When whether certain water quality is safe is evaluated, the carcinogenic effect acting mode of a pollutant is judged firstly, water quality criterion values for human health protection are calculated by use of corresponding derivation formulas according to the carcinogenic effect acting mode, then, the concentration value of pollution matter of the to-be-detected drinking water source region is detected, if the concentration value is lower than the water quality criterion value, the quality of drinking water is safe, and otherwise, the quality is not safe. The provided water quality criterion derivation method is simple, the derivation result error is small, the pertinence is high, and a theoretical basis is provided for the environmental protection department to set the water quality standard of drinking water for human health protection.

Description

technical field [0001] The invention belongs to the technical field of water quality safety evaluation, and in particular relates to a water quality benchmark derivation method for protecting human health and a water quality safety evaluation method for drinking water sources. Background technique [0002] With the intensification of environmental pollution and the strengthening of environmental risk management, people gradually realize the importance of water quality safety in drinking water sources to human health. With the continuous emergence of new pollutants, which pose a threat to the health of the people, it is necessary to strengthen the protection of water quality in water sources. Water quality evaluation of water sources is an important means to realize water source protection. When evaluating whether the water quality is safe, it is often necessary to judge whether the concentration of various pollutants contained in the water of the evaluated drinking water sou...

AI Technical Summary

Problems solved by technology

However, the evaluation results mainly depend on the most serious pollution factor, and the effects of other factors are weakened, and the evaluation effect is poor.

With the development of the economy, more and more water sources are affected by various chemical pollutants, and the single factor evaluation method no longer meets our water quality requirements

However, comprehensive evaluation methods, such as water pollution index method, analytic hierarchy process, multivariate statistical analysis method, gray correlation method and artificial neural network method, etc., these methods are still in the theoretical research stage, and have not formed a unified and standardized water quality comprehensive evaluation model. Applied in practical engineering

The existing water quality evaluation technology has the problems that the calculation results are prone to deviation, and the calculation process involves many parameters and indicators, which are difficult to realize, which is not conducive to quickly and accurately evaluating whether the water quality is safe.

[0003] At present, there are few methods for deriving water quality standards for human health in the patent documents disclosed in the prior art. The water quality reference value method for human health, but this method also takes the way of ingesting aquatic products as an investigation factor, and introduces the bioaccumulation coefficient, which complicates the entire derivation process due to the complexity of bioaccumulation; moreover, the calculation results are not only applicable to surface water , is also applicable to the establishment of human health benchmarks in freshwater waters that can provide aquatic products, and has a wide range of applications, but poor pertinence

Therefore, the applicability is not strong when the environmental protection department formulates drinking water quality standards to protect human health and evaluates water quality.

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