Table 3 pH 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 7.49 7.49 7.17 7.06 7.12 7.50 6.98
2010 7.45 7.20 7.18 7.10 7.20 7.62 7.00
2011 7.44 7.03 7.20 7.50 7.36 7.48 7.30
2012 7.40 7.02 7.30 7.50 7.30 7.48 7.00
2013 7.35 7.01 7.80 7.64 7.28 7.45 6.92
2014 7.35 7.01 7.50 7.50 7.30 7.50 6.95
2015 7.20 7.02 7.50 7.40 7.35 7.55 6.95
2016 7.01 7.03 7.60 7.30 7.40 7.62 6.94
2017 7.15 7.10 7.50 7.40 7.38 7.60 6.98
2018 7.20 7.20 7.60 7.45 7.36 7.60 7.00
2019 7.36 7.38 7.70 7.45 7.30 7.59 7.10