| Measure | Low | Moderate | High | Very High |
| What measurement banding means | Harmful effects unlikely, even in sensitive people | Possibly a small risk in sensitive people, and/ or unpleasant effects may begin to occur | Some adverse effects in sensitive people. Increasingly unpleasant effects | Risk of more serious health effects, not necessarily confined to sensitive people. Seriously unpleasant effects |
| Carbon Monoxide (CO) | less than 11.599 | 11.599 to 17.299 | 17.299 to 23.099 | 23.099 and over |
| Nitrogen Dioxide (NO2) | less than 286.999 | 286.999 to 571.999 | 571.999 to 763.999 | 763.999 and over |
| Ozone (O3) | less than 99.999 | 99.999 to 178.999 | 178.999 to 359.999 | 359.999 and over |
| Particulates (PM10) | less than 49.999 | 49.999 to 74.999 | 74.999 to 99.999 | 99.999 and over |
| Sulphur Dioxide (SO2) | less than 265.999 | 265.999 to 530.999 | 530.999 to 1062.999 | 1062.999 and over |