Temporal and spatial assessment of groundwater contamination with nitrate by nitrate pollution index (NPI) and GIS (case study: Fasarud Plain, southern Iran)

Environmental Geochemistry and Health
Mehdi BahramiFarideh Rostami

Abstract

Groundwater resources in arid and semi-arid regions are the most and sometimes the only water resource used for agricultural, industrial, and urban water supply. Irregular and immense application of nitrogen fertilizers in the lands under cultivation and nitrate leakage from livestock farming have affected the groundwater quality. In such areas, nitrate is one of the main pollutants in the groundwater. In this study, the temporal and spatial trend of nitrate contamination in 31 wells in Fasarud Plain, southern Iran, from April 2017 to March 2018 were assessed. To survey the geochemical quality of the plain, a geographic information system to expand geographic location maps and spatial distribution maps of nitrate concentration and nitrate pollution index (NPI) was applied. Nitrate concentrations ranged between 2.43 and 96 mg L-1. Results indicated that nitrate temporal trend was increased significantly in most of the wells, and the spatial trend of area percentage of nitrate class 3 (not permissible limit of more than 50 mg L-1) was positive. The greatest quantities of this variable in groundwater samples detected in northern, western, and eastern areas of the plain have a direct relation with the fertilization of agricultural ...Continue Reading

References

Oct 18, 2016·Ground Water·M BakkerM N Fienen
Dec 16, 2017·Environmental Science and Pollution Research International·Daniela DucciGiovanni Pugliano
Aug 15, 2018·Scientific Reports·Abhijit MukherjeeYoshihide Wada

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Citations

Jul 14, 2020·Environmental Science and Pollution Research International·Lisha WangJing Li
Apr 27, 2021·Environmental Geochemistry and Health·Mahmoud A AbdelhafizBo Meng

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