 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
Intermittent air quality monitoring refers to air pollutants that are monitored as a 24-hour integrated concentration, once every sixth day, in accordance with the National Air Pollution Surveillance (NAPS) monitoring schedule. This will usually involve using sampling systems that collect pollutants using reactive tubes, absorbents or filters. These air samples need to be analysed at a laboratory to determine air pollutant levels. Because of the time and effort needed to analyse these samples, data may not be available for some time after the sample is collected.
The PAMZ Air Quality Monitoring program uses intermittent samplers to determine levels of Particulate matter at its fixed and portable continuous monitoring stations. 24-Hour average concentrations of both PM10 and PM2.5 are determined by collecting the size fraction of interest on a filter paper, weighing the filter before and after its use.