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+6KEY WORDS: Anthropogenic. Waste. Contamination. Groundwater. Heavy metals.
Highlights
Seasonal variation in heavy metal contamination of groundwater in the Jimeta- Yola area was investigated
This study has demonstrated that indiscriminate waste disposal practice is responsible for the heavy metal contamination in the study area
The study revealed that heavy metal contamination occurred in the rainy season as revealed by the mean concentration values of chromium hexavalent and copper which is in the order of Cr+6
Summary
Seasonal variation in heavy metal contamination of groundwater in the Jimeta- Yola area was investigated. 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 and anthropogenic input is the only source influencing the contamination indices in the case of chromium hexavalent. Low pH and soft water running through copper be a source of heavy metal pollution of groundwater pipes and fittings can cause gradual leaching of copper (Tijani et al, 2004). The heavy metals of concern in the resulting in elevated levels in drinking water (Sonon et study area are copper and chromium hexavalent, this al., 2006). The objective of this work is to assess the contamination of chromium hexavalent and copper in groundwater system, and assess the influence of anthropogenic activities on the heavy metal pollution in the study area
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