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

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. 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 threshold If maximum concentrations are between the upper and lower assessment thresholds As, Cd, Ni B(a)P As, Cd, Ni B(a)P 0–749 1 1 1 1 750–1999 2 2 1 1 2000–3749 2 3 1 1 3750–4749 3 4 2 2 4750–5999 4 5 2 2 ≥ 6000 5 5 2 2 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.

← anx_III__cpt_3__cpt_1__text_1 · All articles · anx_III__cpt_4__cpt_1 →

Source: EUR-Lex (Cellar) · retrieved 2026-11-01 · Text as adopted (Official Journal); later amendments are not incorporated in this text.