Abstract
The economic growth and continued urban expansion of Cagayan de Oro city in the Philippines has negative effects in air quality. This has been observed especially in school zones at urban districts. In this study an assessment of road side dust emission, characterization of ambient air quality sources and traffic profile of elementary schools along major arterials are studied. A handheld outdoor dust monitor was used to assess the PM level, while traffic surveys for road side traffic assessment and mobile emissions inventory were utilized for GIS overlay of emission sources. Predominantly PUJs account at least 20% in terms of %PCU observed in Bulua Elementary School. Taking into consideration meteorological factors of PM 2.5 and PM10 the evaluation show values below the standard of PM2.5 and PM10 levels based from WHO.
