Environmental simulation test box for quantitatively analyzing PM2.5 (fine particulate matter) absorbing capability of plants

Abstract

The invention relates to the field of air quality monitoring, in particular to an environmental simulation test box for quantitatively analyzing PM2.5 (fine particulate matter) absorbing capability of plants. The environmental simulation test box comprises a closable box body, a PM2.5 generator, a PM2.5 measuring device, a constant-temperature constant-humidity device, a lighting simulating device, a raining simulating device and a wind simulating device, wherein the PM2.5 generator and the PM2.5 measuring device are communicated with the box body, and the constant-temperature constant-humidity device, the lighting simulating device, the raining simulating device and the wind simulating device are disposed in the box body. By the structure, influences of natural environments can be isolated, environmental parameters can be simulated quantitatively, and accordingly PM2.5 absorbing capability of plants can be measured accurately, and scientific and effective basis is provided for quantifying PM2.5 absorbing capability of various plants and forest planting selection.

Description

technical field [0001] The invention relates to the field of air quality monitoring, in particular to an environmental simulation experiment box for quantitative analysis of the ability of plants to absorb PM2.5. Background technique [0002] Particulate matter that can enter the lungs, namely PM2.5, has an important impact on air quality and visibility. The generation of PM2.5 mainly comes from the residues emitted by combustion in the process of industrial production and automobile exhaust emission. PM2.5 has a small particle size, contains a large amount of organic matter, inorganic matter, viruses, molds and some strong carcinogens, and has a large surface area and strong adsorption capacity. It is easier to enter the human body and stay there than coarse particles, posing a great threat to human health. The PM2.5 index has become an important index for measuring and controlling the degree of air pollution. [0003] It is well known that plants can absorb PM2.5, and th...

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Problems solved by technology

[0003] As we all know, plants can absorb PM2.5, and the concentration of PM2.5 can be effectively reduced through afforestation, but there is still a lack of scientific and effective data support for the individual's ability and which tree species are more suitable for absorbing PM2.5

This is because it is difficult to measure the blocking absorption of PM2.5 and other particulate matter by plants themselves.

Because the determination is subject to the influence of pollutants from different pollution sources in nature, natural wind, rainfall and other natural conditions on the absorption of PM2.5 and other particulate matter by plants, it is difficult to determine how much PM2 the plant itself can absorb. .5 and other particles for accurate determination

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