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Impact of dust on people, buildings, plants and animals
Origin：Hefan Hit： Time：2020-03-06
The dust particles in the air may themselves be chemically inert or sexual. If they are inert, they can also absorb chemically active substances from the atmosphere, or they can synthesize a variety of chemically active substances. According to its chemical composition and physical properties, dust particles can cause extensive damage to buildings. Dust particles fall on the surface of the painted building, the glass curtain wall, and they will stain it. Every year, the cost of new painting and cleaning of buildings and structures is considerable.
It has also been reported that the dust and harmful gases in the atmosphere accelerate the corrosion rate of objects, which are mainly manifested in the rust and mineralization of metal cultural relics, the crisp and peeling of stone relics, and the fading of textiles and murals.
What's more important is that the dust particles can cause direct academic damage through the inherent rottenness or the role of corrosive chemicals absorbed or adsorbed by the inert dust particles discharged into the atmosphere. Metals generally resist corrosion in dry air, even in clean, humid air. However, when hygroscopic dust particles are generally present in the atmosphere, they can corrode metal surfaces even in the absence of other pollutants. Examples of corrosion of metal surfaces exposed to the industrial atmosphere are well documented in the paper.
Little is known about the effects of particulate matter on plants and animals. However, the destructive effects of several specific substances have been observed. Fluoride-containing dust particles can cause some plant damage. Magnesium oxide, which landed on farmland, once caused poor plant growth. Animals eat plants that are contaminated with toxic dust particles, and their health is harmed. These toxic compounds can be absorbed into plant tissues or become contaminated by plant surfaces. Animals ingesting plants with fluorine-containing particles can cause fluorosis. Cattle and sheep eat the plants with arsenic-containing particles deposited on it, and they will become victims of arsenic poisoning.
