Spatial and temporal variations in the geochemistry of shallow groundwater contaminated with nitrate at a residential site

Environmental Science and Pollution Research International
Eliot A Atekwana, Christopher J Geyer

Abstract

The concentrations of nitrate (NO3-), major ions, and dissolved inorganic carbon (DIC) and the stable carbon isotopes of DIC (δ13CDIC) in shallow groundwater below a 45 × 60 m residential property was investigated over a period of 38 months. Our aim was to identify the processes which control the spatial and temporal distribution of NO3- in the shallow groundwater and assess water-rock interactions linked to denitrification. Groundwater sampled quarterly from eight locations showed an average NO3- concentration of 36.8 mg/L and a range between 0.1 and 214.9 mg/L compared to the US EPA maximum contaminant level of 10 mg/L. Heterogeneity in nitrate distribution was from residential application of N-based fertilizers offsite and from onsite application on flower beds and for lawn care. The temporal behavior of nitrate at all eight groundwater locations was markedly different and independent of seasonal hydrologic variations. Nitrate attenuation was spatially controlled by heterogeneous denitrification and rain dilution near roof drains. Groundwater locations with active denitrification were characterized by higher DIC concentrations and lower δ13CDIC from organic carbon mineralization and by higher ionic concentrations from weathe...Continue Reading

References

Jan 1, 1976·Annual Review of Microbiology·C C Delwiche, B A Bryan
Jan 9, 2007·Ecological Applications : a Publication of the Ecological Society of America·S SeitzingerG Van Drecht
Mar 14, 2008·Nature·Sybil Seitzinger
Aug 30, 2008·Water Research·Michael O RivettChrystina D Bemment
Jun 15, 2010·Environmental Science & Technology·Karen R BurowNeil M Dubrovsky
Oct 12, 2010·Science·Donald E CanfieldPaul G Falkowski
Oct 1, 1993·Trends in Ecology & Evolution·D Lloyd
Jul 28, 2016·Environmental Science and Pollution Research International·Manuela Lasagna, Domenico Antonio De Luca
Nov 16, 2017·Environmental Science and Pollution Research International·Moddassir AhmedNasir Ahmad Saeed
Jan 27, 2018·Environmental Science and Pollution Research International·Xiaosha ZhiZhenyao Shen

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Citations

Aug 11, 2019·Environmental Science and Pollution Research International·Zhi-Wei WangFu-Lin Li
Jan 12, 2021·Water Environment Research : a Research Publication of the Water Environment Federation·Amir Mohaghegh MotlaghHumayra Saba
Apr 29, 2021·Environmental Science and Pollution Research International·Shengwei CaoYasong Li

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