This information is obtained from the Australian Government. They know…..
Alcoa emits particulate matter PM10 and PM2.5 this affects humans and other animals in the same way. These Particles are micrometers or less in diameter, by way of comparison, a human hair is about 100 micrometres, so roughly 40 fine particles could be placed on its width. In other words very, very fine Particles.
These Particles in general, affect the aesthetics and utility of areas through visibility reduction and may affect buildings and vegetation. The specific effect of particles depends on their composition, concentration and the presence of other pollutants such as acid forming gases. Alcoa also emits Sulphur Dioxide (SO2) and Nitrogen oxides (NOx) and other substances. Read more
