328.5 mg/L = 328.5 ppm
| mg/L | ppm |
|---|---|
| 313.5 mg/L | 313.5 |
| 318.5 mg/L | 318.5 |
| 323.5 mg/L | 323.5 |
| 328.5 | 328.5 |
| 333.5 mg/L | 333.5 |
| 338.5 mg/L | 338.5 |
| 343.5 mg/L | 343.5 |
328.5 mg/L = 328.5 ppm
1 ppm = 1 mg/L (aqueous, density ≈ 1 kg/L) · 1 ppb = 0.001 mg/L · 1% = 10,000 ppm