371.5 mg/L = 371.5 ppm
| mg/L | ppm |
|---|---|
| 356.5 mg/L | 356.5 |
| 361.5 mg/L | 361.5 |
| 366.5 mg/L | 366.5 |
| 371.5 | 371.5 |
| 376.5 mg/L | 376.5 |
| 381.5 mg/L | 381.5 |
| 386.5 mg/L | 386.5 |
371.5 mg/L = 371.5 ppm
1 ppm = 1 mg/L (aqueous, density ≈ 1 kg/L) · 1 ppb = 0.001 mg/L · 1% = 10,000 ppm