Observations on soil and groundwater contamination with nitrate: A case study from Lebanon-East Mediterranean

Hydrogeochemical and stable isotope data of groundwater of a multi-aquifer system: Northern Gafsa basin – Central Tunisia

“…Nitrate pollution of water is of high concern as it may have negative impacts on water supply and ecosystems (Rouabhia et al, 2004(Rouabhia et al, , 2008aHamed, 2009a;Ben Moussa et al, 2010a;Darwish et al, 2011;Diédhiou, 2012;Hamed et al, 2013a (Bengtsm and Annadotter, 1989;Avery, 1999), cancer through the formation of carcinogenic N-nitroso compounds (Weyer et al, 2001), to spontaneous abortions (Centers for Disease Control and Prevention, 1996), and to non-Hodgkin's lymphoma (Ward et al, 1996). As nitrate contamination is related to human, animal, or industrial waste practices, (Fig.…”

Management characteristics of Fertigation considering the salinization process on cultivation in soil and substrate

“…YANG et al (2007) consider that probably one of the most important sources of diffuse contamination is the nutrient loss by superficial outflow and leaching. The intensive cultivation system and the inadequate handling practices are considered the main sources of salinization and contamination by nitrates (DARWISH et al, 2011). According to BRAVO et al (2011), the nitrate leaching is normally associated with excessive application of nitrogen and water.…”

“…The handling techniques of fertigation must always tend to the conservation and increment of the production capacity of the soils, aiming the elevation of productivity (SOUSA et al, 1999). Potential environmental problems are associated to the fertigation, standing out the contamination of the superficial sub-superficial water and by fertilizer leaching (CAUSAPÉ et al, 2004;DARWISH et al, 2011) and the accumulation of salts in more superficial soil layers (DIAS et al, 2005;FACTOR et al, 2008); such problems are normally associated to inadequate handling of the irrigation and to elevated doses of applied fertilizers .…”

Enhanced Vadose Zone Nitrogen Removal by Poplar During Dormancy

“…Unfortunately, the primary anthropogenic source of global reactive N in groundwater is leaching from agro-ecosystems which adversely affects groundwater quality and impacts human health (Almasri 2007;Du et al 2011;Galloway et al 2003;Suthar et al 2009). The application of N above agronomic uptake rates leads to high levels of ammonium (NH 4 + ) and nitrate (NO 3 − ) in shallow aquifers (Almasri 2007;Fortier et al 2010;Hajhamad and Almasri 2009;Kraft and Stites 2003) with NO 3 − concentrations often far exceeding the federal drinking water standard of 10 mg-N L −1 (Chen et al 2010;Darwish et al 2011;Jimenez and Chávez 2004;WHO 1998).…”