对尼日利亚卡杜纳州扎里亚库班尼河流域种植的废水、土壤和蔬菜样本中的铁浓度进行评估

M. Sa’id, S. Oladeji
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引用次数: 0

摘要

对2013年1月至2014年9月采自扎里亚库班尼河流域的废水、土壤和季节性蔬菜(胡萝卜、生菜、洋葱、菠菜、卷心菜、番茄和秋葵)样品中的铁含量进行了测定。结果表明:2013年和2014年污水中铁含量分别为3.85 ~ 42.33mg/L和15.60 ~ 72.08 mg/L;土壤中重金属含量2013年为0.96 ~ 12.73mg/Kg, 2014年为4.93 ~ 18.24 mg/Kg,蔬菜中重金属含量2013年为3.80 ~ 23.65mg/Kg, 2014年为7.48 ~ 27.15 mg/Kg。统计分析显示,污水、土壤和蔬菜的铁含量在不同地点和季节没有显著差异。Pearson相关分析显示,2013年和2014年污水铁含量呈中等(r = 0.527)关系,土壤铁含量呈中等(r = 0.526)关系,2013年和2014年蔬菜铁含量呈中等(r = 0.597)关系。本研究中获得的铁浓度高于世界卫生组织和粮农组织等标准组织为废水设定的最大污染物水平,而土壤和蔬菜在这些机构设定的限制范围内。关键词:铁水平;库班尼河;土壤
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Assessment of iron concentrations in wastewater, soil and vegetable samples grown along Kubanni Stream Channels in Zaria, Kaduna State, Nigeria
The concentration of iron was determined in wastewater, soil and vegetable (carrot, lettuce, onion, spinach, cabbage, tomato and okro) samples that were collected on seasonal basis from January, 2013 to September 2014 along Kubanni stream channels in Zaria. The results showed iron levels in wastewater were in the range of 3.85 – 42.33mg/L for the year 2013 and 15.60 – 72.08 mg/L in 2014; 0.96 – 12.73mg/Kg for the year 2013 and 4.93 – 18.24 mg/Kg in 2014 for the soil while the vegetables had concentrations in the range of 3.80 – 23.65mg/Kg for the year 2013 and 7.48 – 27.15 mg/Kg in 2014. Statistical analysis revealed no significant difference in iron levels across the locations and seasons for wastewater, soil and vegetables analyzed. Pearson correlation showed moderate (r = 0.527) relationship between iron levels in wastewater for the year 2013 and 2014, moderate (r = 0.526) relationship was also obtained for the soil between these two years likewise, moderate (r = 0.597) relationship was obtained for vegetables cultivated in 2013 and that of 2014 respectively. Iron concentrations obtained in this study was higher than maximum contaminant levels set by Standard Organizations such as W.H.O. and F.A.O for wastewater while the soil and vegetables were within the limits set by these bodies. Keywords: Iron level, Kubanni River, Soil, Vegetable and Wastewater
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