Which sampling method enhances the collection of larger particles in air quality monitoring?

Isokinetic sampling is specifically designed to efficiently collect particles in a gas stream, ensuring that the sample reflects the actual concentration and size distribution of airborne particles. This method involves maintaining the sampling velocity equal to the velocity of the gas stream at the point of sampling. By doing so, larger particles are captured more effectively, as the isokinetic approach mitigates the effects of inertia that may lead to their loss in other sampling techniques.

This sampling method is particularly important in environments where understanding the concentration of larger particles is critical, such as in industrial settings where dust and particulate matter can present significant health and safety risks. Isokinetic sampling helps to provide data that is more representative of the actual air quality, which is essential for industrial hygiene assessments and compliance with air quality standards.