- Latest available (Revised) - English
- Latest available (Revised) - Welsh
- Original (As made) - English
- Original (As made) - Welsh
This is the original version (as it was originally made). This item of legislation is currently only available in its original format.
5. This Part sets out the minimum number of sampling points for fixed measurement of Group B pollutants to assess compliance with target values for the protection of human health in zones where fixed measurement is the sole source of information.
Population of zone (thousands) | If maximum concentrations exceed the upper assessment threshold(1) | If maximum concentrations are between the upper and lower assessment thresholds | ||
---|---|---|---|---|
Arsenic, Cadmium, Nickel | Benzo(a) pyrene | Arsenic, Cadmium, Nickel | Benzo(a)pyrene | |
(1) To include at least one urban-background station and for benzo(a)pyrene also one traffic-oriented station provided this does not increase the number of sampling points. | ||||
0—749 | 1 | 1 | 1 | 1 |
750—1,999 | 2 | 2 | 1 | 1 |
2,000—3,749 | 2 | 3 | 1 | 1 |
3,750—4,749 | 3 | 4 | 2 | 2 |
4,750—5,999 | 4 | 5 | 2 | 2 |
=<6,000 | 5 | 5 | 2 | 2 |
6. For the assessment of pollution in the vicinity of point sources, the number of sampling points for fixed measurement should be determined taking into account emission densities, the likely distribution patterns of ambient air pollution and potential exposure of the population. The sampling points should be sited such that the application of the measures referred to at regulation 7(2)(b) can be monitored.
Latest Available (revised):The latest available updated version of the legislation incorporating changes made by subsequent legislation and applied by our editorial team. Changes we have not yet applied to the text, can be found in the ‘Changes to Legislation’ area. The revised version is currently only available in English.
Original (As Enacted or Made) - English: The original English language version of the legislation as it stood when it was enacted or made. No changes have been applied to the text.
Original (As Enacted or Made) - Welsh:The original Welsh language version of the legislation as it stood when it was enacted or made. No changes have been applied to the text.
Access essential accompanying documents and information for this legislation item from this tab. Dependent on the legislation item being viewed this may include:
Use this menu to access essential accompanying documents and information for this legislation item. Dependent on the legislation item being viewed this may include:
Click 'View More' or select 'More Resources' tab for additional information including: