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Particulate pollution does not stay suspended in the air indefinitely. When wind blows in the desert, dust is kicked up and the particulate pollution is tempora
by ouid 6y ago
Particulate pollution does not stay suspended in the air indefinitely. When wind blows in the desert, dust is kicked up and the particulate pollution is temporarily quite high. Then time passes or it rains and everything is clean again. The world is made of particulate that has come to rest.
- mint2 6y agoWhen it rains those particles run off in to the streams, where they can leach chemicals out, especially as the materials degrade in uv light and oxygen with their massively increased surface area as particles vs being part of a tire. And brake pad nanoparticles make up air pollution around freeways. Nanoparticles easily stay suspended and disperse, and can be resuspended.