Tag Archives: air quality

Improving Indoor Air Quality in Condominiums Through Green Architecture (Published)

Clean air is an essential human need. It is therefore not surprising that the WHO global health observatory estimated that in 2012, seven million deaths were caused by air pollution; with ambient air pollution contributing to 3.7 million deaths while household air pollution was responsible for 4.3 million deaths, and 7.7% of the global mortality. Africa is not left out in this epidemy. A review of literature on indoor air pollution and its contributory factors reveals that majority of the indoor pollutants come from construction material residues, indoor furnishings and finishing as well as lifestyle of the occupants of the buildings. The study carried out case studies on selected condominiums in Lagos to identify specific contributory factors to indoor air pollution and its effect on the building occupants. The research concludes by recommending that indoor air quality could be improved by introducing ‘green’ practices such as building with renewable construction materials, passive design, natural ventilation as well as healthy indoor plants to purify indoor air.

Citation: Ogunmola A.F.  and   Fadairo   G. (2022) Improving Indoor Air Quality in Condominiums Through Green Architecture, British Journal of Environmental Sciences, Vol.10, No.5, pp.,1-14

Keywords: Green Architecture, air quality, indoor air pollution

Evaluation of Ambient Air Quality at Nekede and Naze Dumpsites, Imo State, South East Nigeria (Published)

Environmental pollution is one potential consequence of lack of proper management of municipal solid waste. The study was carried out to evaluate on-site air quality at Nekede and Naze dumpsites with respect to dry and wet seasons. Samples were measured at six (6) sampling points within and around the field using a series of calibrated hand held air quality monitoring equipment. At each sampling point, nine (9) air quality parameters (particulate matter (PM2.5 and PM10) Hydrogen sulphide (H2S), Ammonia (NH3), Sulphur dioxide (SO2), Methane (CH4), Carbon dioxide (CO2), Carbon monoxide (CO) and Nitrogen dioxide (NO2) were measured.Results showed that PM2.5 and PM10 were detected in all stations of both dumpsites in both seasons. The highest values for all parameters measured were at the dumpsites except for CO which increased as distance progressed off the dumpsite. The CO ranged 0.42-0.94ppm at Nekede dumpsite and 0.20-1.12 ppm at Naze dumpsite during the dry season with the lowest values measured at station NKAQ1 and NZAQ1 with corresponding values of 0.42 and 0.20 ppm. CH4 was less than 0.01 ppm at NZAQ3 in both seasons under study. All parameters measured were higher in Nekede area than Naze except for NH3 which ranged 0.01- 0.15 ppm and 0.02-0.17 ppm respectively for both seasons. Generally NKAQ3 and NZAQ3 which all served as control stations had the lowest concentration of all parameters measured but otherwise for CO. Result further revealed that all parameters except CO exceeded the concentration values stipulated by USEPA and WHO, implying serious health implications in the study area. Results from this study calls for proper waste management system to ameliorate air pollution in the study area.

Keywords: Environment, Imo State, Pollution, air quality

Environmental Impact of Gas Flaring on Ebocha-Egbema, Niger Delta, Nigeria. (Published)

The impact of gas flaring on Ebocha-Egbema environment in the Niger Delta area of Nigeria was investigated. Mbutu Mbaise which has no oil-drilling or gas flaring site, was selected as the control environment. Concentrations of air quality indices: carbon monoxide (CO), nitrogen dioxide (NO2), sulphur dioxide (SO2), methane (CH4) and particulate were determined. Air quality measurements in Ebocha were made, at least, 500 meters from the flaring site. Values of important indices of soil physico-chemical parameters: pH, nitrate (NO3), sulphate (SO4) and percentage carbon were determined for the two environments. Water samples from the two environments were analysed for their physico-chemical parameters. Results obtained revealed that the mean values for air quality indices, soil and water physico-chemical parameters for Ebocha were substantially higher than those for Mbutu Mbaise except pH values obtained for soil and water, indicating that gas flaring exerts adverse ecological effect on the air, soil and water environments in Ebocha.

Keywords: Environmental impact, air quality, gas flaring. Physic chemical parameters

Environmental Impact of Gas Flaring on Ebocha-Egbema, Niger Delta, Nigeria (Published)

The impact of gas flaring on Ebocha-Egbema environment in the Niger Delta area of Nigeria was investigated. Mbutu Mbaise which has no oil-drilling or gas flaring site, was selected as the control environment. Concentrations of air quality indices: carbon monoxide (CO), nitrogen dioxide (NO2), sulphur dioxide (SO2), methane (CH4) and particulates were determined. Air quality measurements in Ebocha were made, at least, 500 meters from the flaring site. Values of important indices of soil physico-chemical parameters: pH, nitrate (NO3), sulphate (SO4) and percentage carbon were determined for the two environments. Water samples from the two environments were analysed for their physico-chemical parameters. Results obtained revealedthat the mean values for air quality indices, soil and water physico-chemical parameters for Ebocha were substantially higher than those for Mbutu Mbaise except pH values obtained for soil and water, indicating that gas flaring exerts adverse ecological effect on the air, soil and water environments in Ebocha.

Keywords: Environmental impact, Gas-flaring, Parameters, air quality, physico - chemical