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Heavy metals concentrations in groundwater used for irrigation
Hassan Taghipour1, Mohammad Mosaferi2, Mojtaba Pourakbar3
1Department of Environmental Health Engineering, Tabriz Health Services Management Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
Health Promotion Perspectives
|April 2, 2014
Summary
Groundwater used for irrigation in Tabriz City
Area of Science:
- Environmental Science
- Agricultural Science
- Analytical Chemistry
Background:
- Groundwater quality is crucial for agricultural sustainability.
- Heavy metal contamination poses risks to crops and human health.
- Irrigation water in Tabriz City's countryside was assessed for heavy metals.
Purpose of the Study:
- To characterize heavy metal concentrations (Lead, Cadmium, Copper, Zinc, Nickel, Chromium) in groundwater used for irrigation.
- To evaluate the suitability of this water for agricultural purposes.
Main Methods:
- 38 irrigation water samples were collected from 34 wells.
- Samples were acidified and concentrated.
- Heavy metal concentrations were determined using flame atomic absorption spectrophotometry.
Main Results:
- Average concentrations of Cd, Pb, Cu, Cr, Ni, and Zn were 6.55, 0.79, 16.23, 3.41, 4.49, and 49.33µg/L, respectively.
- No surface runoff or industrial wastewater was used for irrigation.
- All measured heavy metal concentrations were below toxicity thresholds for agricultural water.
Conclusions:
- Farmers are not using contaminated water sources for irrigation.
- Authorities' control efforts appear effective.
- The groundwater and irrigation water in the studied area are not polluted with heavy metals, posing no current risk.
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