Harmfulness of sulfur dioxide

SO2 is a colorless gas with strong pungent smell, which is easy to dissolve in human blood and other viscous liquids. When the annual sulfate concentration is 10 μ When the concentration is about 10%, the mortality can be reduced by 0.5%; SO2 can also adhere to airborne dust. When people breathe in airborne dust with SO2, the toxicity of SO2 will be enhanced.

SO2 is a colorless gas with strong pungent smell, which is easy to dissolve in human blood and other viscous liquids. SO2 in the atmosphere will cause inflammation, bronchitis, emphysema, eye conjunctivitis, etc. in registered residence. At the same time, it will also reduce the immunity of teenagers and weaken their disease resistance. Under the action of oxidant and light, SO2 can generate sulfate aerosol, which can cause disease and increase patient mortality. According to the research of the Organization for Economic Cooperation and Development (OECD), when the annual sulfate concentration is 10 μ When the concentration is about 10%, the mortality can be reduced by 0.5%; SO2 can also adhere to airborne dust. When people breathe in airborne dust with SO2, the toxicity of SO2 will be enhanced. The research shows that under the influence of high concentration of SO2, plants will suffer from acute damage, necrosis spots will appear on the surface of leaves, or the leaves will wither and fall off directly; Under the influence of low concentration of SO2, the growth function of plants is affected, resulting in the decline of yield and deterioration of quality. Corrosion of SO2 to metals, especially to steel structures. It brings great losses to the national economy every year. It is estimated that the direct economic losses caused by metal corrosion in industrial developed countries account for 2%~4% of the gross national economic output value every year.