An Assessment of Particulate Matter Pollution in Calabar, Nigeria Sunday O. Udo, Mfon D. Umoh, Igwe O. Ewona, and Chinelo T. Okpalaonwuka
Analysis of trends in particulate matter (PM) in Nigeria using Mann-Kendall and Sen's slope estimator statistical tests Udoh F. Evans and Utibe A. Billy Mfon D. Umoh
EPA'S PROPOSED REVISIONS TO THE PARTICULATE MATTER AIR QUALITY STANDARDS Committee on Environment and Public Works