A pinboard by
Oluwafemi Akande

Lecturer, Federal University of Technology, Minna, Nigeria


Ventilation, Indoor air quality , occupants health, residential buildings in Nigeria

Owing to Nigeria’s growing population, millions of its urban populace live in areas and houses with low environmental standards resulting in changing patterns of disease transmission and mortality. This study assessed indoor environmental factors in naturally ventilated residential buildings (NVRB) associated with ill-health in Bauchi, Nigeria. A questionnaire and environmental data loggers were used to collect household (n=115 participants), building characteristics and indoor environmental data from selected residential neighbourhoods. Av-eragely, indoor CO2 (584 ppm) data indicate an adequate ventilation; while PM2.5 (63 μm/m3) and PM10 (228 μm/m3) concentration exceeded the WHO guideline value of 25 μm/m3 and 50 μm/m3 respectively. Positive correlation was found with certain illnesses, but non-significant. The study concludes that though the PMs and CO2 did not appear responsible for the illnesses reported, when occurred in the presence of certain conditions they become significant risk factors