See the Air – Mass vs Particle Number
/Traditionally, air quality has been monitored by measuring the mass concentration of particles (PM), i.e., the total mass of particles per unit volume of air. However, this method is insufficient for submicron particles (diameter < 1 micrometer). These tiny particles are numerous, but their low mass might obscure the health risks.
A better method is to measure the particle number by size distribution. This provides important insights, as different sources produce different particle sizes.
Advantages of Particle Size Distribution:
Source Identification: Differences in particle sizes help identify emission sources (e.g., vehicles, industry).
Targeted Regulations: Regulations can be designed to address specific particle size ranges associated with health risks.
More Effective Monitoring: Monitoring can focus on the most hazardous particle types.
Sensors like the DL-PM, which transmits particulate matter measurements along with temperature, humidity, and barometric pressure data over LoRaWAN®, enable researchers and decision-makers to gather valuable insights.
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