Schedule 2 Limit values
Sulphur dioxide
| Averaging period | Limit value | ||
|---|---|---|---|
| One hour | 350 μg/m3 not to be exceeded more than 24 times a calendar year | ||
| One day | 125 μg/m3 not to be exceeded more than 3 times a calendar year |
Nitrogen dioxide
| Averaging period | Limit value | ||
|---|---|---|---|
| One hour | 200 μg/m3 not to be exceeded more than 18 times a calendar year | ||
| Calendar year | 40 μg/m3 |
Benzene
| Averaging period | Limit value | ||
|---|---|---|---|
| Calendar year | 5 µg/m3 | ||
Carbon monoxide
| Averaging period | Limit value | ||
|---|---|---|---|
| Maximum daily eight hour mean | 10 mg/m3 |