O.S.  Udeozor, A.N.  Nzeako, 
    Preferred Emission Techniques for Estimating Air Emissions from Industrial Boilers in Nigeria,
    Environmental Research Journal,
    Volume 4,Issue 3,
    2010,
    Pages 251-256,
    ISSN 1994-5396,
    erj.2010.251.256,
    (https://makhillpublications.co/view-article.php?doi=erj.2010.251.256)
    Abstract: The purpose of the preferred emission estimation techniques is to assist Nigeria manufacturing, industrial and service facilities to prepare emission inventories and report emissions of listed substances to the Federal Environmental Protection Agency (FEPA). This study describes the procedures and recommended approaches for estimating emissions resulting from combustion in boilers.
    Keywords: Emissions;boilers;preferred estimation methods;stack sampling;CEMS;fuel analysis