How are total suspended particles typically measured?

Total suspended particles (TSP) are typically measured through the process of collection and weighing. This method involves capturing particulate matter from the air onto a filter. Once the particles are collected, the filter is weighed before and after sampling. The difference in mass provides a quantifiable measure of the total suspended particles in the air during the sampling period.

This approach is widely used because it offers a direct measurement of the mass of suspended particles, which is crucial for assessing air quality and understanding the potential impact on health and the environment. By using a precise weighing method, this technique allows for accurate quantification of TSP levels, making it a reliable and established method in environmental monitoring.