指标 | 最小值 | 最大值 | 均值 | 变异系数 |
pH | 8.68 | 9.05 | 8.85 | 1.65% |
TDS | 425 | 617 | 472 | 13.9% |
Na+ | 114 | 172 | 145 | 12.0% |
K+ | 2.43 | 5.48 | 3.55 | 27.6% |
Ca2+ | 11.5 | 24.8 | 18.6 | 27.5% |
Mg2+ | 28.8 | 61.0 | 36.2 | 31.6% |
F- | 0.56 | 1.70 | 1.42 | 33.6% |
Cl− | 84.8 | 132 | 95.3 | 17.0% |
CO32− | - | 29.4 | 16.0 | 68.7% |
HCO3− | 236 | 342 | 283 | 11.6% |
NO3− | - | 0.10 | 0.02 | 225% |
SO42− | 89.0 | 187 | 118 | 27.4% |