EVALUATION OF THE INDOOR AIR QUALITY OF RESIDENTIAL BUILDINGS IN THE HOT-HUMID TROPICAL ENVIRONMENT OF ENUGU, ENUGU STATE NIGERIA

摘要

Effective natural ventilation designs can enhance indoor air quality in the hot-humid tropical environment. Today however, buildings in this area still depend heavily on artificial ventilation for daily operations. Temperature range of 25°C to 36°C and high relative humidity range of 70% to 95% are common in most Nigerian towns. They are above the recommended thermal comfort temperature of 30°C and relative humidity of 75%.