Convert Milligrams per cubic metre to Micrograms per litre
Convert Milligrams per cubic metre (mg/m³) to Micrograms per litre (µg/L) instantly and accurately.
Conversion Formula
µg/L = mg/m³ × 1
About Milligrams per cubic metre
The milligram per cubic metre (mg/m³) equals 10⁻⁶ kg/m³, the reference unit for industrial occupational exposure limits (OELs). NIOSH REL for respirable crystalline silica is 0.05 mg/m³; OSHA PEL for Portland cement 15 mg/m³; ACGIH TLV for calcium carbonate dust 10 mg/m³. Numerically equal to µg/L, bridging airborne and aqueous analysis. 1 mg/m³ = 10⁻⁶ kg/m³ = 1 µg/L.
About Micrograms per litre
The microgram per litre (µg/L) equals 10⁻⁶ kg/m³, numerically equal to mg/m³, and the standard unit for trace-level water quality. EPA maximum contaminant level for arsenic is 10 µg/L; WHO guideline for lead in drinking water is 10 µg/L; pharmaceutical water-for-injection requires total organic carbon below 500 µg/L. 1 µg/L = 10⁻⁶ kg/m³ = 1 mg/m³ = 1 ppb (mass) in dilute aqueous solutions.
Quick Reference Table
| Milligrams per cubic metre (mg/m³) | Micrograms per litre (µg/L) |
|---|---|
| 1 mg/m³ | 1 µg/L |
| 2 mg/m³ | 2 µg/L |
| 5 mg/m³ | 5 µg/L |
| 10 mg/m³ | 10 µg/L |
| 25 mg/m³ | 25 µg/L |
| 50 mg/m³ | 50 µg/L |
| 100 mg/m³ | 100 µg/L |