As excessive exposure to airborne particulate matter (PM) results in adverse health effects,
the development of real-time PM monitoring is highly relevant. The objective of this article is
to broadly review the current state-of-the-art on aerosol mass-concentration measurement,
and on real-time monitoring systems. Widely used systems are bulky, time consuming or
expensive to maintain. Over the past decade, sensor developments have shown the
following features: portable, inexpensive, and suitable for monitoring real-time …