Publisher: Bachudo Science Co. Ltd

Seasonal Variation In Chromium Hexavalent and Copper Contamination In Groundwater of Jimeta-Yola Area, Northeastern Nigeria

J.m. Ishaku, H.i. Ezeigbo
KEYWORDS: Anthropogenic. Waste. Contamination. Groundwater. Heavy metals

ABSTRACT:

Seasonal variation in heavy metal contamination of groundwater in the Jimeta- Yola area was investigated. The objectives of the study were to determine the seasonal variation in heavy metal contamination and to determine the influence of anthropogenic activities on heavy metal contamination. Groundwater samples were collected from hand-dug wells and boreholes between the dry season and rainy season periods. The water samples were analyzed using the DR/2010 spectrophotometer, TDS/conductivity meter and membrane filtration method. The results revealed that chromium hexavalent and copper enrichment occurred in the rainy season in the order of Cr 6these heavy metals contamination is anthropogenic. The mean values for chromium hexavalent and copper were 0.20 mg/l and 0.69 mg/l. The AF mean values for chromium hexavalent and copper were 20.1 and 70 while the Igeo mean values were -4.6 and -1.6. The strong positive correlation between copper, AF and Igeo ranged from 0.74 to 0.99 while the correlation between AF and Igeo as it relates to copper was 0.43. The strong positive correlation between chromium hexavalent, AF and Igeo ranged from 0.89 to 0.99. The correlation between AF and Igeo as it relates to chromium hexavalent indicated a perfect correlation. These results indicated that anthropogenic input is the most likely source of these heavy metals and the contamination indices are weakly influenced by anthropogenic input in the case of copper%


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