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首页> 外文期刊>Journal of Sustainable Development >Spatial and Temporal Variation of Rainwater Chemistry in Ile-Ife and Its Environ, Osun State, Nigeria
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Spatial and Temporal Variation of Rainwater Chemistry in Ile-Ife and Its Environ, Osun State, Nigeria

机译：尼日利亚奥孙州伊莱-伊费尔及其周围地区雨水化学的时空变化

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The study of the chemical composition of rain water was conducted in Ile – Ife and environs, an agrarian, commercial, residential and semi-industrialised center of Osun state Nigeria. This was with a view to assessing the impact of land use activities on rain water composition and the temporal variation of rainwater chemistry. Physico-chemical parameters such as Turbidity, pH, TDS, Conductivity, Oxygen parameters, Alkalinity, Acidity, Hardness and Major ions (Ca2+, Mg2+, K+, Na+, NO3-, SO4-, HCO3-) were determined, predominant ions were identified. Turbidity, pH, Conductivity, TDS, D.O B.O.D, Alkalinity, Acidity Hardness ranged between 2.90 - 42.84 NTU, 5.65 - 7.40, 6.71 – 122.33 μScm-1, 4.10 –73.27 mg/L, 3.60 – 10.60 mg/L, 0.13 – 7.20 mg/L, 0.33 – 22.0 mg/L, 2.00 – 15.00 mg/L, 0.04 – 1.23 CaCO3mg/l respectively. The dominant ions detected in the study were HCO3-, Mg2+, Na+ and Ca2+. Generally, the mean concentration of ions as expressed in milli-equivalent per Litre showed order of dominance as HCO3- > NO3- > SO42- for the anions and Mg2+ > Na+ > Ca2+ > K+ for cations. The study concluded that land use activities had influence on all the chemical composition of rain water in the study area but more on pH, alkalinity, acidity, bicarbonate. Except sulphate and Nitrate, all other parameters recorded high values in dry season.
机译：在尼日利亚奥森州的农业，商业，住宅和半工业化中心Ile – Ife and environs进行了雨水化学成分的研究。这是为了评估土地使用活动对雨水成分和雨水化学成分的时间变化的影响。确定诸如浊度，pH，TDS，电导率，氧气参数，碱度，酸度，硬度和主要离子（Ca2 +，Mg2 +，K +，Na +，NO3-，SO4-，HCO3-）的理化参数，确定主要离子。浊度，pH，电导率，TDS，DO BOD，碱度，酸度硬度范围为2.90-42.84 NTU，5.65-7.40、6.71 – 122.33 μScm-1、4.10 –73.27 mg / L，3.60 – 10.60 mg / L，0.13 – 7.20 mg / L，0.33 – 22.0 mg / L，2.00 – 15.00 mg / L，0.04 – 1.23 CaCO3mg / l。在研究中检测到的主要离子是HCO3-，Mg2 +，Na +和Ca2 +。通常，离子的平均浓度以毫当量/升表示，占优势的顺序为：阴离子的HCO3-> NO3-> SO42-，阳离子的Mg2 +> Na +> Ca2 +> K +。研究得出结论，土地利用活动对研究区域雨水的所有化学成分都有影响，而对pH，碱度，酸度，碳酸氢盐的影响更大。除硫酸盐和硝酸盐外，所有其他参数在旱季均记录为高值。

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