Region,Country,NO3- (mg/L) Max/min,NO3- (mg/L) average,Ca2+ (mg/L),Mg2+ (mg/L),Na+ (mg/L),K+ (mg/L),SO42- (mg/L),Cl- (mg/L),HCO3- (mg/L),F- (mg/L),EC (microS/cm),pH,Reference
Industrial area in Barcelona,Spain,<20-130.5,46.02,77.9-287,27.3-166.5,32.9-412.7,0.3-1.9,94.2-1435.1,30.5-711.3,251.9-652.3,n.a.,1100-4300,7.2-7.8,"(Blázquez-Pallí et al., 2019b)"
Basilicata,Italy,0.1-8.1,1.21,40.8-74.2,4.7-20.1,3.6-6.3,0.2-1.5,0.8-9.5,3.8-8.5,220-297,n.a.,365-550,7.2-7.8,"(Canora et al., 2019)"
Central region,Portugal,2.22-2.66,2.26,1.62-19.92,1.34-33.22,4.9-16.35,0.02-0.36,2.0-41,n.a.,1.0-146,n.a.,n.a.,n.a.,"(Carvalho et al., 2019)"
Scopia basin (spring),Greece,6.2-90.2,38.9,75.2-215.2,5.5-46.6,2.5-36.3,0.39-11.4,2.5-131.4,10.6-67.4,244-488,n.a.-0.71,283-1138,6.9-7.4,"(Charizopoulos et al., 2018)"
Scopia basin (boreholes),Greece,11.9-134.6,43.6,8.8-155.2,12.9-91.4,0.94-61.5,n.a.-2,0.5-91.2,7.1-95.7,280.6-549,n.a.-0.65,416-947,7.11-8.2,"(Charizopoulos et al., 2018)"
Vibrata aquifer (November),Italy,2-151,66.3,n.a.,n.a.,n.a.,n.a.,11-230,6-160,n.a.,n.a.,381-1551,n.a.,"(Di Lorenzo et al., 2012)"
Vibrata aquifer (July),Italy,0.1-148,77.2,n.a.,n.a.,n.a.,n.a.,32-195,35-172,n.a.,n.a.,838-1560,n.a.,"(Di Lorenzo et al., 2012)"
Medjerda Lower Valley Aquifer,Tunisia,4.83-596,73.53,44-1610,27.36-825.6,142.6-3698.4,1.95-795.6,90-5756.88,255.14-5968,1-806,0.23-52.63,n.a.,6.9-8.8,"(Ferchichi et al., 2018)"
The Jarales site,Spain,0-85,21,1751-3621,246-720,39464-70000,159-298,4907-8326,63105-113581,185-268,n.a.,120.6-167.8,n.a.,"(Gil-Márquez et al., 2019)"
Cenozoic Duero Basin,Spain,0.4-240,48.6,1-260,1.0-78,13-468,0-118,2-154,5-360,55-550,n.a.,225-1995,6.85-9.87,"(Giménez-Forcada et al., 2017)"
Sivas province (Wet season),Turkey,0.01-84.59,7.69,16.63-494.47,4.24-197.81,6.75-193.61,0.44-17.23,7.2-1154.92,7.05-160.07,36.79-360.53,n.a.,n.a.,7.1-9.15,"(Karaku?, 2019)"
Sivas province (Dry season),Turkey,0.03-90.47,9.47,28.04-416.78,8.98-114.57,10.25-292.77,0.5-20.13,5.95-1199.86,9.65-436.76,61.01-548.94,n.a.,n.a.,6.99-9.05,"(Karaku?, 2019)"
Skhira phreatic aquifer,Tunisia,5.79-130.7,52.13,256-680,101-529,410-3795,11;59,750-6848,654-3552,101-1690,0.03-10.3,2820-17200,6.45-7.19,"(Melki et al., 2019)"
Argamasón,Spain,11.7-28.3,14.2,51-81,29-63.7,11.2-17.6,1-1.9,30.9-62,20.4-34.3,274.6-395.5,n.a.,618-889,n.a.,"(Moratalla et al., 2009)"
Los Anguijes,Spain,17.6-25.8,21.9,71-92,36-60,10.4-35.4,0.9-1.4,72.9-103.8,19.3-37.9,272.7-474,n.a.,702-1160,n.a.,"(Moratalla et al., 2009)"
Pozuelo,Spain,21.2-30.7,25.3,65.5-97,40-67,8.7-24,0.8-1.7,30-65.8,43.9-57.4,290.8-461.3,n.a.,675-1136,n.a.,"(Moratalla et al., 2009)"
Aguas Nuevas,Spain,13.1-44.2,26.2,141.4-216,60.7-108,10.9-25.8,1.5-2.8,313.9-666.5,26.9-45.2,130.9-404.2,n.a.,1309-2180,n.a.,"(Moratalla et al., 2009)"
El Salobral,Spain,18.7-54.1,26.3,66-114,43.6-66,11.4-16.4,1.0-1.6,158.2-242.4,21-37.5,186.9-379,n.a.,815-1290,n.a.,"(Moratalla et al., 2009)"
Santa Ana,Spain,20.2-44.2,31,55-81,38.7-82.7,9.6-16.9,1.0-1.5,31.2-45.9,20.5-26.7,288.5-404.3,n.a.,519-900,n.a.,"(Moratalla et al., 2009)"
Aluviales: Jarama-Tajuña,Spain,n.a.,27.12,n.a.,n.a.,n.a.,n.a.,n.a.,n.a.,n.a.,n.a.,n.a.,n.a.,"(Mostaza-Colado et al., 2018)"
MPQ aquifer of the Sidi Bouzid plain,Tunisia,14.3-110,52.69,n.a.,n.a.,97-1058,n.a.,579-2300,80-1480,n.a.,n.a.,1740-8860,6.26-7.36,"(Ncibi et al., 2020)"
Marathon basin,Greece,4-175,44.16,102-382,11.0-69,38-494,1.8-15,41-340,75-1220,77-763,n.a.,1025-4720,6.26-7.36,"(Papazotos et al., 2019)"
Grombalia Basin (Deep),Tunisia,2.0-230.6,55.7,31.6-696.5,12.7-557.3,72.8-1888.4,4.2-63.6,2.8-3105,107.3-3436,128.1-688,n.a.,1000-7100,7.0-7.7,"(Re et al., 2017)"
Grombalia Basin (Shallow),Tunisia,0-514.7,148,69.0-677.4,26.1-186.6,111.1-734.7,0.0-40.3,145.3-723.1,112.4-1450,164.7-481.9,n.a.,1000-9200,6.9-7.8,"(Re et al., 2017)"
Limia River basin Spain,Spain,4.137-329.02,79.65,0.91-61.295,1.02-11.43,n.a.,0.934-114.4,1.139-68.787,5.696-180.616,n.a.,0.007-2.48,n.a.,n.a.,"(Rodriguez et al., 2020)"
Agro-Aversano area,Italy,6.4-170.2,75.8,19.4-138.5,3.1-35.1,43.9-175.5,n.a.,5.1-156.2,20-180.9,99.4-804.2,0.5-6.7,440-1917,n.a.,"(Rufino et al., 2019)"
Amurga Mountain Range,Spain,0.16-189,9.28,5-1182,13.2-821,97-1660,8.2-92,24-932,125-4200,55-562,n.a.,152-13410,6.9-9.85,"(Ruiz-García et al., 2019)"
Antalya (Dry season),Turkey,5.57-37.34,19.94,59.49-100.17,13.04-79.06,4.63-70.46,0.48-2.26,21.07-132.73,2.19-21.34,225.7-506.3,n.a.,288.8-794,8.54-9.36,"(Varol and ?ekerci, 2018)"
Antalya (Wet season),Turkey,4.9-52.14,28.81,62.55-94.96,12.59-79.54,4.08-74.48,0.45-2.18,30.09-155.8,1.99-27.2,234.63-517.8,n.a.,279.8-809,8.85-9.6,"(Varol and ?ekerci, 2018)"
"Balikligol Basin, Sanliurfa (7)",Turkey,2.2-3.9,3.3,53.4-64.2,5.9-6.5,4.5-5.8,0.9-1.6,2.0-16,4.3-28.6,129.5-194.8,0.1-1.1,331-351,7.6-7.7,"(Yeti? et al., 2019)"
"Balikligol Basin, Sanliurfa (1)",Turkey,2.2-5.3,3.6,48.7-59.8,7.5-11.5,2.6-3.86,0.8-1.2,04:41,5.3-20.8,132.9-192.2,0.1-0.4,319-349,7.9-7.9,"(Yeti? et al., 2019)"
"Balikligol Basin, Sanliurfa (8)",Turkey,1.9-5.3,3.7,66.6-74.2,6.9-8.6,7-15.2,2.1-9.3,11.0-41,12.7-26.8,160.3-251.5,0.1-0.6,363-499,7.6-7.8,"(Yeti? et al., 2019)"
"Balikligol Basin, Sanliurfa (3)",Turkey,1.5-8.3,3.9,53.7-63.4,6-6.8,3.6-5.2,0.8-1.1,6;96,6.9-26.3,59.1-184,0.1-0.4,337-342,7.6-7.7,"(Yeti? et al., 2019)"
"Balikligol Basin, Sanliurfa, (6)",Turkey,2.6-8.9,5.4,57.1-67.3,5.8-6.6,4;6,1.3-1.7,9;32,5-20.6,155.3-175.5,0.1-0.6,344-361,7.5,"(Yeti? et al., 2019)"
"Balikligol Basin, Sanliurfa, (5)",Turkey,4.1-7.6,5.5,80.3-94,8-9.4,28.3-34.7,11-16.4,15-26,23.6-76.3,240.2-335.4,0.1-0.3,626-732,7.5-7.8,"(Yeti? et al., 2019)"
"Balikligol Basin, Sanliurfa (2)",Turkey,53.6-59.4,55.3,4.2-5.2,3.8-4.7,2.6-3.3,2;37,10.2-18.1,137.4-165.8,0.1-0.6,326-345,7.7-7.9,19.7-24,"(Yeti? et al., 2019)"
"Balikligol Basin, Sanliurfa (4)",Turkey,11.3-15.9,13.5,115.2-130,7.6-13.6,15.5-49.6,1.3-4.5,5-161,28.9-158.6,65.5-346.3,0.1-0.9,745-820,7.1-7.2,"(Yeti? et al., 2019)"
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