II.4.3 Areas with
deteriorated air quality
II.4.3.1 Areas with deteriorated air quality with regard to health protection
To delineate zones and agglomerations with deteriorated air quality in line with
the Act No.86/2002 Coll. as amended (Clean Air Act), and pursuant to the
Government Order No. 597/2006 Coll. on monitoring and assessment of ambient air
quality, exceedances of air pollution limit values for annual average
concentrations of PM10, NO2, lead, benzene, were assessed
for each station, as well as the frequencies of exceedance of CO 8-hour limit
values, the exceedance frequencies of daily limit values for PM10 and
SO2, exceedance frequencies of hourly limit values for SO2
and NO2. Also assessed was the exceedance of target limit values for
annual average concentrations of benzo(a)pyrene, cadmium, arsenic and nickel and
frequencies of exceedance of 8-hour limit values of ground-level ozone.
The above mapping procedures were used for the preparation of the maps of
spatial distribution of the respective air pollution characteristics presented
in the previous subchapters, both for the exceedance of the limit values and for
the exceedance of the target limit values. Areas with the values of air
pollution characteristics higher than the respective (target) limit values
(areas for the exceedance of the limit value plus the margin of tolerance marked
in red or brown) delineate the areas with deteriorated air quality.
Table II.4.2.26 brings the overview of the areas
in the Czech Republic, in which the level of the limit values, and especially of
the target values for human health protection were exceeded in 2007, based on
the results of mapping air pollution characteristics distribution. The
exceedance percentage in the respective territory is also presented.
Table II.4.2.25 summarises the areas of
exceedances of limit values+the margins of tolerance for human health protection
in 2007. The tables show the exceedance percentage of the respective limit
values/target values in the given territory for individual components and air
pollution characteristics, and summarize the areas in which at least one limit
value/target value of the given components was exceeded. The percentages of
exceedances presented in the overview in Table
II.4.2.26 correspond to the percentages of the territories of the given
administrative unit in which at least one limit value of the set of limit values
for the protection of human health was exceeded. The map in
Fig. II.4.2.59 depicts the delineation of
the areas with deteriorated air quality with regard to limit values, and the map
in Fig. II.4.2.60 shows the delineation of
the areas with the exceedance of the target limit values for the protection of
human health, ground-level ozone excluded, and in
Fig II.4.2.61, ground-level ozone
included.
Table II.4.2.27 shows the list of administrative
units with exceedances of the O3 target limit value for the
protection of health within the areas of the Czech Republic and the share (%) of
the area of exceedance of the respective unit. Ground-level ozone is presented
separately, as it is evident that the measures aimed at the decrease of ozone
concentrations exceeding the target value or the long-term objectives, should be
taken at the regional and national level.
II.4.3.2 Areas with deteriorated air quality with
regard to the protection of ecosystems and vegetation
Based on the mapping of air pollution characteristics distribution for the year
2007 with regard to ecosystems and vegetation protection (Chapter II.4.2.2.1,
II.4.2.2.2 a II.4.2.2.3) the distribution for annual and winter average
concentrations of SO2 and annual average NOx
concentrations for the protection of ecosystems and vegetation is depicted.
In 2007 none of the localities with monitoring stations, classified as rural,
recorded the exceedances of the limit values for SO2 and NOx
for the protection of ecosystems/vegetation.
Table II.4.2.28 is presented for information. It
shows the exceedances of the SO2 and NOx limit value and
the AOT40 target value for the protection of ecosystems and vegetation within
the national parks and protected areas (% of the territory) in 2007. The values
were calculated on the basis of the respective maps of air pollution
characteristics.
Tab II.4.2.25 LV+MT exceedances in the
zone/agglomerations and municipalities with extended competencies of the Czech
Republic, % of area of the administrative unit, 2007
Tab. II.4.2.26 Limit value (LV) and target value
(TV) exceedances in the zones/agglomerations and municipalities with extended
competencies of the Czech Republic (excluding the ground-level ozone), % of area
of the administrative unit, 2007
Tab. II.4.2.27 Exceedances of the ozone target
value for the protection of health in the zones/agglomerations and
municipalities with extended competencies of the Czech Republic, % of the area
of the administrative unit, 2007
Tab. II.4.2.28 Exceedances of limit value (SO2,
NOx) and target value (AOT40) for the protection of ecosystems and
vegetation in national parks and protected landscape areas, % of the territory
of NP+CHKO, 2007
Fig. II.4.2.59 Areas with deteriorated air quality with regard to health
protection limit values, 2007
Fig. II.4.2.60 Areas with deteriorated air quality with regard to health
protection target values, ground-level ozone excluded, 2007
Fig. II.4.2.61 Areas with deteriorated air quality with regard to health
protection target values, incl. ground-level ozone, 2007
Fig. II.4.2.62 Areas with deteriorated air quality with regard to
ecosystems/vegetation protection limit values in national parks and protected
landscape areas, ground-level ozone excluded, 2007
Fig. II.4.2.63 Areas with deteriorated air quality with regard to
ecosystems/vegetation protection limit values in national parks and protected
landscape areas, including ground-level ozone, 2007
