Table 10 Chloride (mg/l) values of water points in the Mougheul area (2009–2019)

From: Physicochemical evolution and evaluation of groundwater quality in Mougheul area (Southwest of Algeria)

Years D1 D2 D3 D4 D5 W6 W the farm
2009 22.00 20.00 28.00 18.00 30.00 89.60 26.50
2010 20.00 20.00 26.00 20.00 20.00 87.00 27.00
2011 16.30 19.00 25.33 24.36 17.00 84.56 28.30
2012 15.90 20.00 24.00 24.00 20.00 84.00 25.00
2013 14.50 23.30 22.69 25.30 25.00 83.60 22.00
2014 14.00 24.00 21.00 25.00 24.00 85.00 20.00
2015 13.50 28.00 19.00 26.00 24.50 90.00 18.00
2016 13.00 30.00 16.80 26.53 24.60 97.00 13.00
2017 13.50 29.00 18.00 26.90 25.00 92.00 14.20
2018 14.00 28.00 19.00 27.00 25.50 88.00 14.50
2019 15.00 27.00 20.30 27.42 26.30 85.60 14.60