ASSESSMENT OF AIR QUALITY IN AN INDUSTRIAL FACILITY IN RUMUEME, PORT HARCOURT, NIGERIA

Air quality in Port Harcourt, Nigeria is being assessed due to black soot, raising concerns among residents. The survey aims to assess airborne particulates in an industrial area in Rumueme, Port Harcourt, measuring pollutants with air sampling devices at different locations. GPS locates sampling spots, measurements taken at 1.6m, and noise levels measured. Particulate matter analyzed using GC-FID method. The residential area was found to Unhealthy levels of PM2.5 are present above USEPA and WHO limits, at 38.70 µgm-3. Sensitive individuals are advised to minimize outdoor activities, restrict traffic, and wear masks. Nighttime noise levels exceed the recommended limit at 50.1 dB(A) and noise mapping can identify sources. In the office area, PM2.5 levels for sensitive individuals are above the WHO limit at 28.30 µgm-3, while PM10 levels are within limits at 60.57 µgm-3. The noise level is below 90 dB(A) and harmful gases are undetectable, with trace metals meeting USEPA and OSHA limits. The helipad area has moderate PM2.5 air pollution exceeding the WHO limit at 25 µgm-3, and PM10 at 65.30 µgm-3. The average noise level is 58.87 dB(A), which is below the limit of 90 dB(A). In the jetty area, PM2.5 levels are higher than WHO guidelines at 30.50 µgm-3, while PM10 levels are at 62.87 µgm-3 causing moderate health concerns. The warehouse has high AQI for PM2.5, suggesting a need to reduce traffic. Noise level averages 66.83 dB(A), recommended.