<
https://www.theguardian.com/environment/2023/may/04/air-pollution-in-australia-how-bad-is-particulate-matter-health-effects-particles-facts>
"Many types of air pollutants are harmful to human health. These include gases
– such as carbon monoxide, nitrous oxides and sulphur dioxide – and
particulates.
Particulate matter refers to microscopic solid or liquid particles that are
suspended in the air. These can be human-made, such as from traffic emissions
and the burning of fossil fuels, or natural, such as from sea spray or mineral
dust from soils.
Particulate pollution has size designations: small particulate matter, known as
PM2.5, refers to particles 2.5 microns or less in diameter, while coarse
particulate matter, PM10, means particles 10 microns or less in diameter.
PM10 can cause irritation to the eyes, nasal and upper respiratory passages.
But PM2.5 is a greater health concern because the smaller particles can travel
deep into the lungs, cross into the bloodstream and be transported to the brain
and other organs."
Cheers,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
