Can PM2.5 particles be filtered out with water?

The principle of removing atmospheric PM 2.5 by precipitation: PM 2.5 itself, as the condensation nucleus of raindrops, is brought to the ground by rain; The other is soluble components (including sulfate, nitrate, various organic acids, sugars, etc.). ) PM _ 2.5 particles are dissolved in rainwater, thus reducing the mass/concentration of PM _ 2.5. Generally speaking, the particle with the highest scouring efficiency is 0. 1-2um.

PM2.5 refers to particles with a diameter less than or equal to 2.5 microns in the atmosphere, also known as particles that can enter the lungs (there is no standard Chinese name yet). Although PM2.5 is only a small part of the composition of the earth's atmosphere, it has an important impact on air quality and visibility. PM2.5 has a small particle size, is rich in a large number of toxic and harmful substances, stays in the atmosphere for a long time and has a long transportation distance, so it has a great impact on human health and atmospheric environmental quality.