Assessment of physicochemical characteristics of groundwater within selected industrial areas in Ogun State, Nigeria

This study aimed to assess the impacts of industrial activities in Ogun State, Nigeria. A total of 96 samples were collected both in dry and wet seasons for analysis of physicochemical quality indicators. Hydrochemical assessment were carried out according to APHA standard while hydrochemical facies of groundwater samples was evaluated using Piper Trilinear software. Pearson correlation was applied in order to determine the relationship between two parameters. The pH at Otta in wet season ranges from 6.67 ± 0.06 to 9.42 ± 0.11; dry season ranges from 4.35 ± 0.21 to 5.70 ± 0.14 while in Sagamu (wet season) values ranges from 6.01 ± 0.04 to 6.67 ± 0.06 while those of dry season ranged from 5.15 ± 0.07 to 6.55 ± 0.07. Interpretation of piper diagram revealed no specific dominant facie at Shagamu while most samples at Otta are characterized by the dominance of (Na+, K+) water types.

本研究旨在评估尼日利亚奥贡州境内工业活动产生的影响。研究共在旱季与雨季采集96份样本，用于理化质量指标的检测分析。本次水化学评估依据美国公共卫生协会（APHA）标准开展，同时采用派珀三线图（Piper Trilinear）软件对地下水样本的水化学相进行评估。采用皮尔逊相关分析以确定不同参数间的相关关系。奥塔地区雨季的pH值范围为6.67±0.06至9.42±0.11，旱季为4.35±0.21至5.70±0.14；萨加穆地区雨季pH值范围为6.01±0.04至6.67±0.06，旱季则为5.15±0.07至6.55±0.07。派珀图解译结果显示，萨加穆地区未出现特定优势水化学相，而奥塔地区多数样本以（Na+、K+）型水为优势类型。