Background: Noise injury and hearing loss are significant problems in Nigerian community. The hearing loss sustained from noise injury can have disabled personnel and social consequences for the affected persons and their families. This study was carried out to quantify the noise level of over eighty (80) different sources using the sound level meter (GB: 2266204) at different locations in Akure, capital of Ondo State, Nigeria. Standard procedure specified by the manufacturer was strictly followed and the results were statistically analyzed. The range of results obtained were: household products (48.5±0.

Polycyclic aromatic hydrocarbons (PAHs) belong to the group of persistent organic pollutants (POPs) which are major environmental pollutants associated with the environment. In this study (preliminary), the concentrations of eighteen (18) PAHs in soil, sediment and fish sample (Clarias anguillaris) of Owan River and agricultural soil samples around the river in Edo State were studied using standard analytical methods. Gas chromatograph equipped with flame ionization detector (GC-FID) was used for the determination of PAHs. The study revealed the presence of the 18 determined PAHs in the soil, sediment and fish (Clarias anguillaris) samples in varying concentrations. The concentrations of PAHs in the soil samples ranged between 0.0000-0.0463 (µ g/kg) with total concentrations of ∑0.2390 (µ g/kg) for soil sample 1 and 0.0000-0.0506 (µ g/kg) with total concentration of ∑0.2700 (µ g/kg) for soil sample from location 2. The concentrations of the PAHs components in the sediments samples ranged between 0.00332-0.0319 (µ g/kg) with total concentration of ∑0.150592 (µ g/kg) for the sediment sample 1; 0.002092-0.05866(µ g/kg) with total concentration of ∑0.0312183(µ g/kg) for the sediment sample 2. The concentration of PAHs components in the fish sample ranged between 0.0000-0.0746 (µ g/kg) with total concentration of ∑0.300 (µ g/kg). The concentrations of PAHs were higher in the soil samples than in the sediment samples. Concentrations of the PAHs residues detected in the fish samples were higher than that in the soil and sediment samples. In furtherance of this study, the number of sampling stations shall be increase to cover other communities while data generated will be subjected to more ecological risk assessments.

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Air quality has been a major concern throughout the world, Nigeria inclusive. The monitoring of air quality involves indoor and outdoor air quality. In this study, our concern was on indoor air quality. The aim of this study was to assess the air quality of residential homes (17), classrooms (3), hospitals (2), offices (5), Shops (2), and laboratories (5) in Akure, Nigeria in terms of formaldehyde (HCHO), total volatile organic compound (TVOC), Particulate matter (PM1.0; PM2.5, and PM10). A Multifunction Air Detector was used for the assessment using the manufacturers’ procedures and the locations were identified using a Mini GPS. The results revealed as follows: HCHO (0.001-0.030 mg/m3), TVOC (0.003-362 mg/m3), PM1.0 (004-014 µg/m3), PM2.5 (006-020 µg/m3), and PM10 (006-022 µg/m3). The results obtained were below the 24 h pollution recommended standards (0.1 mg/m3- HCHO; TVOC; 10-20 μ/m3 PM) of EPA and WHO. Statistically, there were correlations within the pollutants and weather. The Indoor air quality (IAQ) depicted the areas as ‘good,’ and toxicity potential (TP) were below unity. Although the locations looked safe, it is recommended that constant monitoring of the indoors should be ensured and proper ventilation should be provided.

Air quality has been a major concern throughout the world, Nigeria inclusive. The monitoring of air quality involves indoor and outdoor air quality. In this study, our concern was on indoor air quality. The aim of this study was to assess the air quality of residential homes (17), classrooms (3), hospitals (2), offi ces (5), Shops (2), and laboratories (5) in Akure, Nigeria in terms of formaldehyde (HCHO), total volatile organic compound (TVOC), Particulate matter (PM 1.0 ; PM 2.5 , and PM 10 ). A Multifunction Air Detector was used for the assessment using the manufacturers' procedures and the locations were identifi ed using a Mini GPS. The results revealed as follows: HCHO (0.001-0.030 mg/ m 3 ), TVOC (0.003-362 mg/m 3 ), PM 1.0 (004-014 μg/m 3 ), PM 2.5 (006-020 μg/m 3 ), and PM 10 (006-022 μg/m 3 ). The results obtained were below the 24 h pollution recommended standards (0.1 mg/m 3 -HCHO; TVOC; 10-20 μ/m 3 PM) of EPA and WHO. Statistically, there were correlations within the pollutants and weather. The Indoor air quality (IAQ) depicted the areas as 'good,' and toxicity potential (TP) were below unity. Although the locations looked safe, it is recommended that constant monitoring of the indoors should be ensured and proper ventilation should be provided.