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Particulates
Fine
Particles are of concern to human health because they can
be inhaled deeply into the lungs and exacerbate respiratory
and cardiovascular illnesses, such as bronchitis, pneumonia
and asthma. The latest research shows that Ultra Fine Particles
are the most dangerous and can pass through the lungs into
the heart (causing arrhythmia) and into the brain.
The
term Particulate Matter (PM) is used to describe airborne
solid particles and/or droplets. Particles are sized relevant
to microns (µm) there are 1,000 microns in 1millimetre.
~ Large Particles are classed as PM 10-50 and are usually
dust, pollen etc. These particles are usually positively
charged and remain in the air until they fall to the ground.
~ Fine Particles are classed as PM 0.1-2.5 and are usually
made up of pollution from hydrocarbons etc. Fine particles
may remain in the atmosphere indefinitely and are capable
of scattering light, causing a reduction in visibility (smog).
~
Ultra Fine Particles are classed as PM 0.01-0.1 and are
below capabilities of most HEPA Filters. These particles
are chemical cocktails consisting of chromium, peroxide
& hydrocarbons.
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