487.5 mg/L = 487.5 ppm
| mg/L | ppm |
|---|---|
| 472.5 mg/L | 472.5 |
| 477.5 mg/L | 477.5 |
| 482.5 mg/L | 482.5 |
| 487.5 | 487.5 |
| 492.5 mg/L | 492.5 |
| 497.5 mg/L | 497.5 |
| 502.5 mg/L | 502.5 |
487.5 mg/L = 487.5 ppm
1 ppm = 1 mg/L (aqueous, density ≈ 1 kg/L) · 1 ppb = 0.001 mg/L · 1% = 10,000 ppm