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Directive 2004/107/EC of the European Parliament and of the CouncilDangos y teitl llawn

Directive 2004/107/EC of the European Parliament and of the Council of 15 December 2004 relating to arsenic, cadmium, mercury, nickel and polycyclic aromatic hydrocarbons in ambient air

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EU Directives are published on this site to aid cross referencing from UK legislation. Since IP completion day (31 December 2020 11.00 p.m.) no amendments have been applied to this version.

IV.Criteria for determining numbers of sampling points for fixed measurement of concentrations of arsenic, cadmium, nickel and benzo(a)pyrene in ambient airU.K.

Minimum number of sampling points for fixed measurement to assess compliance with target values for the protection of human health in zones and agglomerations where fixed measurement is the sole source of information.U.K.

(a)Diffuse sourcesU.K.
a

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.

Population of agglomeration or zone(thousands)If maximum concentrations exceed the upper assessment thresholdaIf maximum concentrations are between the upper and lower assessment thresholds
As, Cd, NiB(a)PAs, Cd, NiB(a)P
0–7491111
750–1 9992211
2 000–3 7492311
3 750–4 7493422
4 750–5 9994522
≥ 6 0005522
(b)Point sourcesU.K.

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 BAT as defined by Article 2(11) of Directive 96/61/EC can be monitored.

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