Tab. 2.3.1 Survey of limit values, margins of tolerance and UAT and LAT for the protection of health according to the Regulation

Component

Averaging time

Limit value
[μg.m-3]
LV

Margin of tolerance
(for 2001)
[μg.m-3]
MT

Assessment threshold [μg.m-3]

Date for achieving LV

Upper
UAT

Lower
LAT

SO2

1 hour

350,
max. 24x/year

120

–

–

1. 1. 2005

24 hours

125,
max. 3x/year

without margin
of tolerance

75,
max. 3x per year

50,
max. 3x per year

1. 1. 2005

calendar year

50

without margin
of tolerance

–

–

on coming the
Regulation into force

PM10
 1st stage

24 hours

50,
max. 35x/year

20

30,
max. 7x per year

20,
max. 7x per year

1. 1. 2005

calendar year

40

6.4

14

10

1. 1. 2005

NO2

1 hour

200,
max. 18x/year

90

140,
max. 18x/year

100,
max. 18x/year

1. 1. 2010

calendar year

40

18

32

26

1. 1. 2010

Pb

calendar year

0.5

0.4

0.35

0.25

1. 1. 2005

CO

max. 8-hour
average

10 000

6 000

7 000

5 000

1. 1. 2005

C6H6

calendar year

5

5

3.5

2

1. 1. 2010

O3

max. daily 8-hour moving average

120,
25x* in a 3-year
average

without margin
of tolerance

120**

–

1. 1. 2010

Cd

calendar year

0.005

0.003

0.003

0.002

1. 1. 2005

As

calendar year

0.006

0.006

0.0036

0.0024

1. 1. 2010

Ni

calendar year

0.02

0.016

0.014

0.01

1. 1. 2010

Hg

calendar year

0.050

–

0.045

0.035

1. 1. 2010

BaP

calendar year

0.001

0.008

0.0005

0.00025

1. 1. 2010

NH3

calendar year

100

60

14

8

1. 1. 2005

* for ozone this level is called target air pollution limit value
** long-term air pollution target according to the Regulation