A method for accurate detection of lead pollution in soil based on Agrimonia persicae

Abstract

The invention relates to a method for accurately detecting pollution degree of lead in soil based on atrichum undulatum. The method comprises a plant material cultivation and acquisition method and a double-layer isolated type pollution absorption and dust prevention detection method, wherein the plant material cultivation and acquisition method comprises the following steps: preparation of spore suspension; preparation of culture mediums; setting of culture conditions; in the double-layer isolated type pollution absorption and dust prevention detection method, a double-layer isolated type pollution absorption and dust prevention device is adopted for covering a plant used for pollution detection of lead in the soil. An atrichum undulatum artificial culture and propagation technology provided by the invention and a 'double-layer pollution absorption and dust prevention cover' capable of effectively isolating and excluding the influence of lead pollutants contained in atmosphere are applied to an implementation process of detecting the pollution of lead in the soil based on atrichum undulatum, so that the pollution of lead in the soil can be detected with high accuracy based on atrichum undulatum.

Description

technical field [0001] The invention belongs to the technical field of detecting heavy metal pollution in soil by using moss plants, and in particular relates to a method for accurately detecting lead pollution in soil based on Moss agrimonae. Background technique [0002] Lead is a heavy metal pollution element with strong potential hazards. It has carcinogenic, teratogenic and mutagenic toxicity characteristics to human and animal organisms. It is relatively stable in soil and difficult to metabolize and degrade. However, it can be bioaccumulated through the food chain. It causes chronic poisoning of humans and animals, so it has received much attention. Due to the increasing output and usage of lead-containing products, according to statistics, China has 60-80 million mu of lead-polluted cultivated land alone, and 70%-80% of the lead produced by industrial production waste will be discharged into the In the soil; petroleum fuels currently used in large quantities also ha...

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Problems solved by technology

In other words, if the lead-containing soil where the plant is located has not affected its growth, it means that the soil at this time is safe and suitable for planting other crops; otherwise, it means that the soil has exceeded the safe limit of lead pollution and has certain lead pollution. risk unsuitable for growing crops

At present, in the evaluation of environmental lead pollution, the detection method of bryophytes is widely used, but this type of method is only used in the detection of lead pollution in the atmosphere, but has not been involved in the detection of soil.

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