Figure 2. Seasonal Variations of PM1 Concentrations in a Naturally Ventilated Classroom during Rainy and Dry Seasons

From

Comparison of Indoor Air Quality in Schools: Urban vs. Industrial 'Oil & Gas' Zones in Akwa Ibom State – Nigeria

Aniefiok E. Ite, Thomas A. Harry, Clement O. Obadimu, Ifiok O. Ekwere

Journal of Environment Pollution and Human Health. 2019, 7(1), 15-26 doi:10.12691/jephh-7-1-3