浓度（质量）是指组成部分的质量除以混合物的总体积。它通常以每立方米（kg/m³）公斤（千克）进行测量。
1 %mass = 10,000,000 µg/L
1 µg/L = 1.0000e-7 %mass
例子:
将15 质量百分比转换为微克每升：
15 %mass = 150,000,000 µg/L
| 质量百分比 | 微克每升 |
|---|---|
| 0.01 %mass | 100,000 µg/L |
| 0.1 %mass | 1,000,000 µg/L |
| 1 %mass | 10,000,000 µg/L |
| 2 %mass | 20,000,000 µg/L |
| 3 %mass | 30,000,000 µg/L |
| 5 %mass | 50,000,000 µg/L |
| 10 %mass | 100,000,000 µg/L |
| 20 %mass | 200,000,000 µg/L |
| 30 %mass | 300,000,000 µg/L |
| 40 %mass | 400,000,000 µg/L |
| 50 %mass | 500,000,000 µg/L |
| 60 %mass | 600,000,000 µg/L |
| 70 %mass | 700,000,000 µg/L |
| 80 %mass | 800,000,000 µg/L |
| 90 %mass | 900,000,000 µg/L |
| 100 %mass | 1,000,000,000 µg/L |
| 250 %mass | 2,500,000,000 µg/L |
| 500 %mass | 5,000,000,000 µg/L |
| 750 %mass | 7,500,000,000 µg/L |
| 1000 %mass | 10,000,000,000 µg/L |
| 10000 %mass | 100,000,000,000 µg/L |
| 100000 %mass | 1,000,000,000,000 µg/L |
规则