Assessment Of Air Quality And Noise Around Some Telecommunication Base Transceiver Stations In Ibadan South West Nigeria

摘要

The ambient air quality and noise level around some base trans-receiver stations (BTSs) in Ibadan, South West Nigeria were investigated, in order to determine the health and safety of emission from BTSs operations. The atmospheric levels of carbon monoxide (CO), nitrogen dioxide (NO2), sulphur dioxide (SO2), hydrogen sulphide (H2S), ammonia (NH3), total hydrocarbons (THC) and suspended particulate matter (SPM) were measured at selected sampling points (upwind and downwind) in twenty base trans-receiver stations spread over nine Local Government Areas within Ibadan and its suburbs. A Honeywell and 3M hand-held air quality meter and gas detectors were used to detect the parameters at intervals of three hours for forty eight hours. A hand-held Extech sound level meter with measuring range of 30¨C130 dB (A), accuracy of ?à1.5 dB (A) was used for the monitoring noise levels. The atmospheric concentrations of CO, NO2, SO2, THC and SPM were <0.0001-1.0, <0.000-0.3, <0.0001-0.6, <0.0001-27.1 ppm respectively, while H2S, NH3 were not present at measurable levels. The detected SPM and noise level were 80.9-165.9 |ìg/m3and 43.4-77 dB. The measured air quality parameters did not exceed the Federal Ministry of Environment (FMENV) stipulated threshold concentrations for potential air contaminants in the ambient air, except for SO2at S1, S5, S7, S12, S14, and S17 and THC at S1, S5, S6, S7, S8, S9, S12, S14, S15, S16, and S19 which measured higher than limit set by FMENV. Apparently, the detected levels are not a threat to the environment since the atmospheric density of the pollutants shows a distance disintegration pattern, which result in concentration reduction farther away from the BTSs