Majority of Nigerians (about 70% of its over 120 million population) live in the rural areas. It is therefore imperative to ascertain the quality of air they breathe. In this study, one of the criteria pollutants, troposphere O3 was monitored as an indicator of the degree of deterioration of rural air. Measurement was done using passive samplers. Seven days sampling duration was observed and the quantity of pyridyaldehyde (PA) formed form the reaction of DPE (1,2-di(4-pyridyl) ethylene) and the ambient O3 was determined using MBTH (3-methyl-2-benzothiazolinone hydraze ethylene) and the ambient O3 was determined using MBTH (3-methyl-2-benzothiazolinone hydrazone chloride). The distributions of O3 were low in the rural villages with a maximum and minimum concentrations of 9.2 mgm-3 and 2.0 mgm-3 respectively. Spatial and seasonal variations were also observed in the data generated. While a mean O3 level of 6.3±0.5mgm-3 was measured in dry season, and a mean of 3.3±0.5mgm-3.was observed in wet season.
K OBAHIAGBON ,E E UKPEBOR ,J E UKPOBER ,
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