Skip to Main Content
Table 1

Hydrochemical parameters of shallow groundwater in the abandoned Yellow River flooding delta (n = 313)

ParametersMaxMinMeanMedian
Well depth 63 39 35 
Temperature (°C) 15.2 7.8 11.1 10.2 
pH 9.20 6.40 7.49 7.50 
EC (ms/cm) 12.440 0.125 2.031 1.768 
TDS (mg/L) 6,086.26 125.54 1,120.43 862.01 
TH (mg/L) 2,791.72 30.30 591.93 542.36 
F (mg/L) 6.91 0.21 1.68 1.39 
K+ (mg/L) 58.12 0.11 2.36 0.69 
Na+ (mg/L) 1,373.86 3.15 185.63 111.38 
Ca2+ (mg/L) 472.88 8.20 100.24 83.21 
Mg2+ (mg/L) 474.45 3.66 58.75 48.00 
Cl (mg/L) 2,053.62 5.77 152.84 103.55 
SO42− (mg/L) 2,125.50 2.47 236.39 95.45 
HCO3 (mg/L) 1,186.17 0.38 524.71 503.68 
CO32− (mg/L) 47.66 N.D. 2.82 1.53 
ParametersMaxMinMeanMedian
Well depth 63 39 35 
Temperature (°C) 15.2 7.8 11.1 10.2 
pH 9.20 6.40 7.49 7.50 
EC (ms/cm) 12.440 0.125 2.031 1.768 
TDS (mg/L) 6,086.26 125.54 1,120.43 862.01 
TH (mg/L) 2,791.72 30.30 591.93 542.36 
F (mg/L) 6.91 0.21 1.68 1.39 
K+ (mg/L) 58.12 0.11 2.36 0.69 
Na+ (mg/L) 1,373.86 3.15 185.63 111.38 
Ca2+ (mg/L) 472.88 8.20 100.24 83.21 
Mg2+ (mg/L) 474.45 3.66 58.75 48.00 
Cl (mg/L) 2,053.62 5.77 152.84 103.55 
SO42− (mg/L) 2,125.50 2.47 236.39 95.45 
HCO3 (mg/L) 1,186.17 0.38 524.71 503.68 
CO32− (mg/L) 47.66 N.D. 2.82 1.53 

N.D., not detected.

Close Modal

or Create an Account

Close Modal
Close Modal