Paragraph 3 Minimum numbers of monitoring stations
(1)
Until 31st December 2027—
(a)
the total number of monitoring stations in each zone must be not less than the number of AQSR monitoring stations in that zone immediately before the coming into force of these Regulations;
(b)
at least one monitoring station in each zone must be at an urban background or suburban background site.
(2)
From 1st January 2028—
(a)
the total number of monitoring stations in each zone, and
(b)
the number of those monitoring stations which are—
(i)
at urban background or suburban background sites;
(ii)
at near-source sites,
must be not less than the minimum numbers specified in the following table.
| Population of zone (thousands) | Minimum total number of monitoring stations | Minimum number of monitoring stations at urban background or suburban background sites | Minimum number of monitoring stations at near-source sites |
|---|---|---|---|
| ≥ 6,000 | 15 | 10 | 5 |
| 4,750 – 5,999 | 11 | 7 | 4 |
| 3,750 – 4,749 | 10 | 6 | 4 |
| 2,750 – 3,749 | 9 | 6 | 3 |
| 1,000 – 2,749 | 6 | 4 | 2 |
| 250 – 999 | 3 | 2 | 1 |
| <250 | 2 | 1 | 1 |