Particle sizers play an increasingly important role in ambient air monitoring by providing detailed insights into the size distribution of airborne particles - information critical for identifying pollution sources, understanding atmospheric processes, and assessing health impacts. Instruments like TSI’s Scanning Mobility Particle Sizer™ (SMPS™) spectrometers meet the technical requirements of CEN/TS 17434:2020 and are aligned with the latest WHO guidelines and the EU Ambient Air Quality Directive, making them suitable for regulatory monitoring of ultrafine particles (UFPs) in urban environments. For time-resolved studies or mobile monitoring applications, Fast Particle Size Spectrometers offer high temporal resolution to capture rapid changes in particle size distribution. Meanwhile, TSI’s Aerodynamic Particle Sizer™ (APS™) spectrometer extends measurement capabilities into the coarse mode, providing a complete view of particles ranging from nanometers to several microns. Depending on the specific need, these instruments equip air quality networks and researchers with the tools needed to monitor, interpret, and respond to complex air pollution challenges.
