Choosing Dust Monitoring Equipment: A Delicate Balance

Industrial operators know prolonged exposure to the fine dust particles generated by either construction or industrial operations can be hazardous to human health, contributing to both lung and cardiovascular disease. To prevent harmful effects on workers (and, sometimes, people in surrounding communities), operators are required to measure the concentration of airborne pollutants or particulates generated in order to ensure that the levels of pollutants stay within required concentrations. To do this, an air-quality monitoring program is required and that best meets cost and accuracy requirements.

When determining which dust-monitoring equipment or dust gauges to use, it’s helpful to consider the methods used to measure dust and which one best meets your needs. The two methods used to measure particulate matter (such as PM10, PM2.5, PM1 and TSP) are a filter-based gravimetric method and a real-time method.

Gravimetric instruments (also known as reference instruments) use a quantitative measure based on the mass of the solid. The instruments collect particles on ventilated filters. The filters then need to be processed at a laboratory to determine the concentration of the particulate or pollutant. Although the gravimetric method is typically the most accurate option, it is the costliest and requires daily or weekly manual filter weighing and lab analysis.

Real-time monitors, a.k.a. optical monitors, use the principles of light scattering or light absorption. By sensing the light reflected by a particle stream onto a photodetector, this equipment can calibrate the concentration of particulate mass. These monitors can be more affordable than gravimetric instruments, as the optical sensors they utilize less costly and can be purchased as an all-inclusive, fully-integrated station—complete with internal data-logging, communication capability and a power supply. IHW

Share on Socials!

Related Articles

Related Articles

Comprehensive Combustible Dust Explosion Protection New methods of Explosion Pressure Relief: REMBE® TARGO-VENT

Comprehensive combustible dust explosion protection does not necessarily have to be expensive or complicated. An innovative technology makes it possible to divert the shock wave and ...
Read More

How to Overcome Instincts to Improve Safety

Pre-entry tests/sampling help ensure that when a worker goes into the space, he or she won’t face immediate danger before even starting work. (photo courtesy Industrial ...
Read More

Heat Stress Monitoring Program Solutions

[Editor’s Note: We sat down with the folks at TSI to discuss heat stress monitoring programs—and the company’s unique solutions and capabilities for managing heat stress.] ...
Read More

Leaders in Industrial Hygiene

AccuTec-IHS
ENMET
HafcoVac
ILC
OHD

Subscribe!

Sign up to receive our industry publications for FREE!

Industrial Hygiene

Construction Safety