What are RSP?

Suspended particulates that smaller than 10 micrometer is defined as Respirable Suspendd Particulates (RSP) which mean human and breath in these particulates and affect health.

2008-01-24 21:27:06 補充：
RSP are the proportion of total suspended particulates of a size smaller than 10 micrometres and they have the ability to penetrate deeply into the lungs. Depending on their source and the existing meteorological conditions, RSP can be made up of a number of different constituents.