450.5 mg/L = 450.5 ppm
| mg/L | ppm |
|---|---|
| 435.5 mg/L | 435.5 |
| 440.5 mg/L | 440.5 |
| 445.5 mg/L | 445.5 |
| 450.5 | 450.5 |
| 455.5 mg/L | 455.5 |
| 460.5 mg/L | 460.5 |
| 465.5 mg/L | 465.5 |
450.5 mg/L = 450.5 ppm
1 ppm = 1 mg/L (aqueous, density ≈ 1 kg/L) · 1 ppb = 0.001 mg/L · 1% = 10,000 ppm