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Why is it important to consider the entire size range of particulate matter emissions when designing control strategies?
While designing control emissions, the main focus is to reduce
the particulate emmision by reducing the amount of Total Suspended
Particles (TSP). These suspended particles could be of two
types:
Primary particulate matter and Secondary particulate matter.
While the primary particulate matter is relatively larger in size
(could vary from 0.1 micrometer to more than 100 micrometres), on
the other hand the secondary particulate matter is fine to ultra
fine in size distribution.
The secondary particulate matter is formed by the reaction between
the gaseous emissions from anthropogenic sources and their
accumulation leads to the formation of a variety of sizes of
particulate matter.
Hence, even if the emissions form sources are of a particular size
range, it could still act as a precursor for the formation of
suspended partices of different size range.
Therefore, it is always important to consider the entire size range
of particulate matter emissions while designing control
strategies.