454.5 mg/L = 454.5 ppm
| mg/L | ppm |
|---|---|
| 439.5 mg/L | 439.5 |
| 444.5 mg/L | 444.5 |
| 449.5 mg/L | 449.5 |
| 454.5 | 454.5 |
| 459.5 mg/L | 459.5 |
| 464.5 mg/L | 464.5 |
| 469.5 mg/L | 469.5 |
454.5 mg/L = 454.5 ppm
1 ppm = 1 mg/L (aqueous, density ≈ 1 kg/L) · 1 ppb = 0.001 mg/L · 1% = 10,000 ppm