Division (B) Environmental objectives and reporting metrics
United Kingdom
LV: limit value, LVMT: Limit value plus margin of tolerance, TV: target value, LTO: long-term objective, INT: Information threshold, ALT: Alert threshold, CL: Critical level, NAT: Assessment of natural contribution, WSS: Assessment of winter-sanding and -salting, ERT: Exposure reduction target, ECO: Exposure concentration obligation. | |||||
No up-to-date data is to be made available. | |||||
| Formula | Protection target | Environmental Objective type (Codef1) | Averaging period of assessments | Reporting metric of environmental objective | Numerical values of the environmental objective(allowed number of exceedances) |
|---|---|---|---|---|---|
| Pollutants for which up-to-date and validated data have to be reported | |||||
| NO2 | Health | LV | 1 hour | Hours in exceedance in a calendar year | 200 μg/m3 (18) |
| LVMT | |||||
| LV | 1 calendar year | Annual average | 40 μg/m3 | ||
| LVMT | |||||
| ALT | 1 hour | Three consecutive hours in exceedance (at locations representative of air quality over at least 100 km2 or an entire zone or agglomeration, which ever is smaller) | 400 μg/m3 | ||
| NOx | Vegetation | CL | 1 calendar year | Annual average | 30 μg/m3 |
| PM10 | Health | LV | 1 day | Days in exceedance in a calendar year | 50 μg/m3 (35) Percentile of 90,4 |
| LV | 1 calendar year | Annual average | 40 μg/m3 | ||
| WSSf2 | 1 day | Deducted days in exceedance in a calendar year | n.a. | ||
| 1 calendar year | Deduction of annual average | n.a. | |||
| NAT | 1 day | Deducted days in exceedance in a calendar year | n.a. | ||
| 1 calendar year | Deduction of the annual average | n.a. | |||
| PM2,5 | Health | ECO | 3 subsequent calendar years | Average Exposure Indicator (calculation see Directive 2008/50/EC) | 20 μg/m3 |
| ERT | in accordance with Annex XIV, Part B to Directive 2008/50/EC | ||||
| TV | 1 calendar year | Annual average | 25 μg/m3 | ||
| LV | |||||
| LVMT | |||||
| SO2 | Health | LV | 1 hour | Hours in exceedance in a calendar year | 350 μg/m3 (24) |
| 1 day | Days in exceedance in a calendar year | 125 μg/m3 (3) | |||
| ALT | 1 hour | Three consecutive hours in exceedance (at locations representative of air quality over at least 100 km2 or an entire zone or agglomeration, which ever is smaller) | 500 μg/m3 | ||
| NAT | 1 hour | Deducted hours in exceedance in a calendar year | n.a. | ||
| 1 day | Deducted days in exceedance in a calendar year | n.a. | |||
| Vegetation | CL | 1 calendar year | Annual average | 20 μg/m3 | |
| Winter | Average value over the winter months, i.e. 1 October year x-1 to 31 March year x | 20 μg/m3 | |||
| O3 | Health | TV | Maximum daily eight-hour mean | Days when maximum daily eight-hour mean exceeded the target value averaged over 3 years | 120 μg/m3 (25) |
| LTO | Maximum daily eight-hour mean | Days when maximum daily eight-hour mean exceeded the long term objective in 1 calendar year | 120 μg/m3 | ||
| INT | 1 hour | Hours in exceedance in a calendar year | 180 μg/m3 | ||
| ALT | 1 hour | Hours in exceedance in a calendar year | 240 μg/m3 | ||
| Vegetation | TV | 1 May to 31 July | AOT40 (calculation see Dir. 2008/50/EC Annex VII) | 18 000 μg/m3·h | |
| LTO | 1 May to 31 July | AOT40 (calculation see Dir. 2008/50/EC Annex VII) | 6 000 μg/m3 ·h | ||
| CO | Health | LV | Maximum daily eight-hour mean | Days when maximum daily eight-hour mean exceeded the limit value | 10 mg/m3 |
| Pollutants for which only validated data have to be reported | |||||
| Benzene | Health | LV | 1 calendar year | Annual average | 5 μg/m3 |
| Lead | Health | LV | 1 calendar year | Annual average | 0,5 μg/m3 |
| Cadmium | Health | TV | 1 calendar year | Annual average | 5 ng/m3 |
| Arsenic | Health | TV | 1 calendar year | Annual average | 6 ng/m3 |
| X1Nickel | Health | TV | 1 calendar year | Annual average | 20 ng/m 3 |
| B(a)P | Health | TV | 1 calendar year | Annual average | 1 ng/m3 |
Annotations
Editorial notes
Footnotes
- f1
LV: limit value, LVMT: Limit value plus margin of tolerance, TV: target value, LTO: long-term objective, INT: Information threshold, ALT: Alert threshold, CL: Critical level, NAT: Assessment of natural contribution, WSS: Assessment of winter-sanding and -salting, ERT: Exposure reduction target, ECO: Exposure concentration obligation.
- f2
No up-to-date data is to be made available.