Method for assessing NO2 levels

PNAQ Methods Summary for Collection and Processing of OGAWA NO2 Samplers

The goal of using the passive OGAWA samplers in urban environments is to survey NO2 concentration levels in a selected neighborhood. The purpose of collection NO2 data is to identify areas of high combustion (i.e. vehicle emissions, manufacturing). Increased levels of NO2 could be an indicator of other air pollutants. Utilizing the OGAWA results, teams from STAR labs can then deploy more precise air monitoring equipment in these locations to assess local air quality.

OGAWA samplers are deployed throughout neighborhoods in a grid-like pattern. Samplers are left in the field for a period of roughly two weeks. Filters are then retrieved from the OGAWA samplers and processed according to OGAWA NO2 sampling protocol. Results are mapped using ARCGIS software and employed for further research