Tab. 2.2.23 The limit values for the protection of health, ecosystems and vegetation pursuant to the Regulation of the Government setting the air pollution limit values, conditions and the way of air quality monitoring, assessment, evaluation and management - Limit values for ecosystem and vegetation protection

Pollutant

Averaging interval

Limit value
LV


Margin
of tolerance
MT

Assessment threshold

Date
for achieving LV

Upper
UAT

Lower
LAT

SO2

calendar year
and winter season
(1. 10.-31. 3.)

20 μg.m-3

without margin
of tolerance

12 μg.m-3

8 μg.m-3

on coming
the Regulation i
nto force

NOx

calendar year

30 μg.m-3

without margin
of tolerance

24 μg.m-3

19.5 μg.m-3

on coming
the Regulation
into force

O3

AOT40, calculated from
1-h values in the period
May-July,
average for 5 years

18 000 μg.m-3.h

without margin
of tolerance

6 000 μg.m-3.h

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1. 1. 2010