air-ann-dir-2008-50

Annexes II VII XI XII XIII XIV - Assessment Thresholds & Limit Values

This list contains the Limit, Critical, Target and Long-term Values on ambient air for protection of human health and vegetation. It also contains the Alert, Information and Upper and Lower Assessment thresholds for sulphur dioxide, nitrogen dioxide, benzene, carbon monoxide, lead, PM2.5, PM10 and ozone.

Particulate mattter

EC / List no: - CAS no: -
Upper assessment threshold
35 ug/m3
Lower assessment threshold
25 ug/m3
Average limit
50 ug/m3
Tolerance margin
50 %
Objective
Protection of Human Health
Average sampling duration
1 day
Qualifier
Passes through a size-selective inlet as defined in the reference method for the sampling and measurement of PM 10, EN 12341, with a 50 % efficiency cut- off at 10 µm aerodynamic diameter.
Annex
XI (Section B),II (Section A3)
Notes
01 Without prejudice to Annex I, the criteria for 'Required proportion of valid data' shall be used for checking validity when aggregating data and calculating statistical parameters

07 Already in force since 1 January 2005

12 Limit value not to be exceeded more than 35 times a calendar year

14 The required proportion of valid data for the Limit Value referes to the percentage of the hourly averages

30 Average Limit is the Limit Value, a level fixed with the aim of avoiding, preventing or reducing harmful effects on human health and/or the environment and not to be exceeded once attained


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