166.5 mg/L = 166.5 ppm
| mg/L | ppm |
|---|---|
| 151.5 mg/L | 151.5 |
| 156.5 mg/L | 156.5 |
| 161.5 mg/L | 161.5 |
| 166.5 | 166.5 |
| 171.5 mg/L | 171.5 |
| 176.5 mg/L | 176.5 |
| 181.5 mg/L | 181.5 |
166.5 mg/L = 166.5 ppm
1 ppm = 1 mg/L (aqueous, density ≈ 1 kg/L) · 1 ppb = 0.001 mg/L · 1% = 10,000 ppm