Sulphur Dioxide
The Capital City of Pragues air
pollution with sulphur dioxide in 2000 can be seen from maps of the fields of
annual arithmetic means and 95th percentiles of sulphur dioxide concentrations
with presentation of measured values at stations (Figs.
2-3 and 2-4).
The 2000 air pollution caused by SO2 was markedly
below the limit values. Annual arithmetic mean of SO2 concentrations
ranged about 10 μg.m-3 at all AIM stations, i.e. they were below one
quarter of the limit value. Similarly as in 1999 the highest daily concentrations
did not reach the limit values at any of the AIM stations (Tab. 2-14). In 2000
the decreasing trend of air pollution caused by SO2 continued.
This decline is illustrated also in maps of fields of concentrations of 1999 and
2000. In 2000 only low concentrations (up to 15 μg.m-3) were
measured on the entire Pragues territory.
Suspended Particulate Matter
The Capital City of Pragues air pollution with SPM in
2000 can be seen from spot symbol charts of annual arithmetic means, 95th
percentiles of SPM concentrations and 90th percentiles of PM10
fraction (Figs. 2-5, 2-6, 2-7).
One part of the centre of the Capital City of Prague (Fig. 2-5)
was, with regard to the level of SPM concentration values measured and to the
current limit values exceeded at two Public Health Service stations, the most
affected area in the Czech Republic in 2000, similarly as in the previous years. On
the other hand the remaining parts of Prague, and namely the uptown ones,
recorded relatively low levels (below one half of the annual limit value). At two
stations, Svornosti in Prague 5 and Sokolovská in Prague 8, significant annual
limit value exceedences were registered again. These stations are situated
in highly exposed localities where the direct impact of traffic is encountered.
The exceedence of daily limit values in more than 35 cases per year (see
Tab. 2-2) in PM10 fraction was recorded at Vršovice in Prague 10 AIM
station. In 1999 and 2000 the SPM air pollution in Prague was quite
comparable, slight increase of PM10 concentrations was recorded
at several AIM stations.
Nitrogen Oxides
Map presentations of annual arithmetic means and 95th
percentiles of nitrogen oxide concentrations using spot symbols illustrate each
of the measuring sites in Prague in 2000 (Figs. 2-8, 2-9).
The Capital City of Prague, in particular the city centre,
reported the highest values of NOx in the Czech Republic in recent
years caused by the rising traffic density. (This is due to the fact that the
main traffic arterial road passes through the city centre.) The city centre
recorded higher NOx concentrations than the outskirts also due to the
higher share of build-up areas and worse ventilation. In 2000 the daily limit
values were exceeded again at most Prague stations in the amount exceeding 5 %
of all cases. Extremely high values of air pollution in exposed localities were
recorded (similarly as in recent years) by the Public Health Service station
Svornosti in Prague 5 and by the Sokolovská station in Prague 8. NOx
concentrations at Svornosti station double-exceeded the current limit values
repeatedly. In the both cases stated, it was above all the direct impact of
the traffic that caused these exceedences. It can be stated that similar high NOx
concentrations may be recorded in the vicinity of other communications in
Prague, heavily influenced by the traffic (e.g. 5. května, Veletržní, Evropská).
This situation is confirmed at other two AIM CHMI stations, Smíchov and Mlynářka
in Prague 5, located in the vicinity of communications with heavy traffic, at
which the annual limit values were also exceeded in 2000. The 2000 NOx
air pollution levels in Prague are comparable with those recorded in 1999; a slight
increase was registered in absolute values of the concentrations measured. This
was also caused by episodes with deteriorated meteorological and dispersion
conditions at the end of the year 2000 (see Chapter 2.4).
The decisive proportion of nitrogen oxides in this areas air
pollution should be noted; see the graph of annual courses of daily
concentrations of the above substances at selected stations in Prague (Fig. 2-10,
2-11). This situation is obvious especially at
stations classified as traffic (T/U/, see the Explanatory notes to the
tables of annual courses); at these stations a significant proportion of PM10
or SPM concentrations was reported as well.
|
Tab. 2-8
|
Annual course of concentrations and selected air
pollution characteristics, sulphur dioxide, Prague 2000
|
|
Tab. 2-9
|
Annual course of concentrations and selected air
pollution characteristics, SPM, Prague 2000
|
|
Tab. 2-10
|
Annual course of concentrations and selected air
pollution characteristics, PM10, Prague 2000
|
|
Tab. 2-11
|
Annual course of concentrations and selected air
pollution characteristics, nitrogen oxides, Prague 2000
|
|
Fig. 2-3
|
Fields of annual arithmetic means of concentrations
with presentation of measured values at stations, sulphur dioxide, Prague
2000
|
|
Fig. 2-4
|
Fields of 95th percentiles of daily concentrations with
presentation of measured values at stations, sulphur dioxide, Prague 2000
|
|
Fig. 2-5
|
Annual arithmetic means of concentrations measured and
recalculated values at stations, SPM, Prague 2000
|
|
Fig. 2-6
|
95th percentiles of daily concentrations at stations,
SPM, Prague 2000
|
|
Fig. 2-7
|
90th percentiles of daily concentrations at stations,
PM10, Prague 2000
|
|
Fig. 2-8
|
Annual arithmetic means of concentrationsat stations,
nitrogen oxides, Prague 2000
|
|
Fig. 2-9
|
95th percentiles of daily concentrations at stations,
nitrogen oxides, Prague 2000
|
Tab. 2-12 Stations with highest
relative frequency of short-term IHk exceedence, Prague
2000
|
SO2 [%]
|
NOx [%]
|
|
code and name of station
|
rel. freq.
|
code and name of station
|
rel. freq.
|
|
The IHk was not exceeded
at any station
|
|
1459 P5-Smíchov
|
10.2
|
|
775 P5-Mlynářka
|
7.8
|
|
773 P4-Braník
|
5.1
|
|
805 P10-Vršovice
|
3.6
|
|
771 P1-nám. Republiky
|
3.5
|
|
780 P9-Vysočany
|
3.0
|
|
804 P10-Počernická
|
2.4
|
|
777 P6-Veleslavín
|
1.6
|
|
776 P6-Santinka
|
1.3
|
|
772 P2-Riegrovy sady
|
1.3
|
Tab. 2-13 Stations with highest
values of 95th percentiles of half-hour pollutant concentrations, Prague 2000
|
SO2 [μg.m-3]
|
NOx [μg.m-3]
|
|
code and name of station
|
95th percentile
|
code and name of station
|
95th percentile
|
|
773 P4-Braník
|
23
|
1459 P5-Smíchov
|
260
|
|
771 P1-nám. Republiky
|
23
|
775 P5-Mlynářka
|
247
|
|
1459 P5-Smíchov
|
20
|
773 P4-Braník
|
202
|
|
780 P9-Vysočany
|
19
|
771 P1-nám. Republiky
|
180
|
|
804 P10-Počernická
|
19
|
805 P10-Vršovice
|
180
|
|
772 P2-Riegrovy sady
|
19
|
780 P9-Vysočany
|
162
|
|
776 P6-Santinka
|
19
|
804 P10-Počernická
|
152
|
|
775 P5-Mlynářka
|
18
|
776 P6-Santinka
|
134
|
|
805 P10-Vršovice
|
18
|
777 P6-Veleslavín
|
133
|
|
779 P8-Kobylisy
|
18
|
772 P2-Riegrovy sady
|
121
|
Tab. 2-14 Highest daily pollutant
concentrations at AIM stations, Prague 2000
|
SO2 [μg.m-3]
|
PM10 [μg.m-3]
|
NOx [μg.m-3]
|
|
code and name of station
|
conc.
|
date
|
code and name of station
|
conc.
|
date
|
code and name of station
|
conc.
|
date
|
|
773 P4-Braník
|
46
|
23.1.
|
804 P10-Počernická
|
283
|
28.4.
|
775 P5-Mlynářka
|
308
|
23.11.
|
|
1459 P5-Smíchov
|
45
|
23.1.
|
771 P1-nám. Republiky
|
205
|
28.4.
|
805 P10-Vršovice
|
305
|
23.11.
|
|
771 P1-nám. Republiky
|
42
|
24.1.
|
805 P10-Vršovice
|
194
|
30.5.
|
805 P10-Vršovice
|
284
|
22.11.
|
|
776 P6-Santinka
|
40
|
23.1.
|
804 P10-Počernická
|
190
|
29.4.
|
1459 P5-Smíchov
|
277
|
22.11.
|
|
777 P6-Veleslavín
|
40
|
23.1.
|
805 P10-Vršovice
|
188
|
11.5.
|
1459 P5-Smíchov
|
268
|
23.11.
|
|
774 P4-Libuš
|
39
|
23.1.
|
780 P9-Vysočany
|
185
|
28.4.
|
773 P4-Braník
|
264
|
23.11.
|
|
772 P2-Riegrovy sady
|
39
|
23.1.
|
805 P10-Vršovice
|
164
|
29.4.
|
771 P1-nám. Republiky
|
261
|
23.11.
|
|
805 P10-Vršovice
|
37
|
23.1.
|
804 P10-Počernická
|
162
|
30.4.
|
1459 P5-Smíchov
|
259
|
13.10.
|
|
779 P8-Kobylisy
|
37
|
23.1.
|
805 P10-Vršovice
|
162
|
16.4.
|
775 P5-Mlynářka
|
259
|
22.11.
|
|
804 P10-Počernická
|
36
|
23.1.
|
804 P10-Počernická
|
162
|
22.4.
|
775 P5-Mlynářka
|
258
|
29.12.
|
Tab. 2-15 Highest annual arithmetic
means of pollutant concentrations at AIM stations, Prague 2000
|
SO2 [μg.m-3]
|
PM10 [μg.m-3]
|
NOx [μg.m-3]
|
|
code and name of station
|
mean
|
code and name of station
|
mean
|
code and name of station
|
mean
|
|
771 P1-nám. Republiky
|
12
|
804 P10-Počernická
|
50
|
1459 P5-Smíchov
|
95
|
|
773 P4-Braník
|
11
|
805 P10-Vršovice
|
44
|
775 P5-Mlynářka
|
89
|
|
776 P6-Santinka
|
10
|
771 P1-nám. Republiky
|
39
|
771 P1-nám. Republiky
|
75
|
|
775 P5-Mlynářka
|
10
|
775 P5-Mlynářka
|
38
|
805 P10-Vršovice
|
75
|
|
780 P9-Vysočany
|
10
|
1459 P5-Smíchov
|
37
|
773 P4-Braník
|
72
|
|
779 P8-Kobylisy
|
10
|
780 P9-Vysočany
|
36
|
780 P9-Vysočany
|
56
|
|
1459 P5-Smíchov
|
9
|
774 P4-Libuš
|
35
|
804 P10-Počernická
|
53
|
|
805 P10-Vršovice
|
9
|
773 P4-Braník
|
33
|
777 P6-Veleslavín
|
49
|
|
804 P10-Počernická
|
9
|
776 P6-Santinka
|
31
|
776 P6-Santinka
|
49
|
|
772 P2-Riegrovy sady
|
9
|
777 P6-Veleslavín
|
31
|
772 P2-Riegrovy sady
|
46
|
Tab. 2-16 Highest relative
(absolute) frequency of exceeding IHd at AIM stations, Prague 2000
|
SO2 [%]
|
PM10
|
NOx [%]
|
|
code and name of station
|
rel. freq.
|
code and name of station
|
abs. freq.
|
code and name of station
|
rel. freq.
|
|
The IHd was not exceeded
at any station
|
|
805 P10-Vršovice
|
58
|
1459 P5-Smíchov
|
42.1
|
|
771 P1-nám. Republiky
|
34
|
775 P5-Mlynářka
|
30.0
|
|
804 P10-Počernická
|
34
|
771 P1-nám. Republiky
|
20.1
|
|
780 P9-Vysočany
|
23
|
773 P4-Braník
|
18.2
|
|
1459 P5-Smíchov
|
17
|
805 P10-Vršovice
|
16.9
|
|
775 P5-Mlynářka
|
17
|
780 P9-Vysočany
|
10.4
|
|
773 P4-Braník
|
13
|
804 P10-Počernická
|
6.9
|
|
774 P4-Libuš
|
11
|
777 P6-Veleslavín
|
6.5
|
|
772 P2-Riegrovy sady
|
8
|
776 P6-Santinka
|
5.3
|
|
776 P6-Santinka
|
7
|
772 P2-Riegrovy sady
|
4.5
|
Tab. 2-17 Stations with highest values of 95th (90th) percentiles of pollutant
daily concentrations, AIM, Prague 2000
|
SO2 [μg.m-3]
|
PM10 [μg.m-3]
|
NOx [μg.m-3]
|
|
code and name of station
|
95th percentile
|
code and name of station
|
90th percentile
|
code and name of station
|
95th percentile
|
|
773 P4-Braník
|
21
|
805 P10-Vršovice
|
97
|
775 P5-Mlynářka
|
182
|
|
771 P1-nám. Republiky
|
20
|
804 P10-Počernická
|
75
|
1459 P5-Smíchov
|
181
|
|
1459 P5-Smíchov
|
18
|
771 P1-nám. Republiky
|
72
|
805 P10-Vršovice
|
152
|
|
772 P2-Riegrovy sady
|
17
|
775 P5-Mlynářka
|
63
|
773 P4-Braník
|
146
|
|
780 P9-Vysočany
|
16
|
1459 P5-Smíchov
|
63
|
771 P1-nám. Republiky
|
139
|
|
804 P10-Počernická
|
16
|
780 P9-Vysočany
|
63
|
780 P9-Vysočany
|
123
|
|
779 P8-Kobylisy
|
16
|
774 P4-Libuš
|
55
|
777 P6-Veleslavín
|
109
|
|
776 P6-Santinka
|
16
|
772 P2-Riegrovy sady
|
53
|
804 P10-Počernická
|
107
|
|
805 P10-Vršovice
|
16
|
773 P4-Braník
|
51
|
776 P6-Santinka
|
100
|
|
775 P5-Mlynářka
|
15
|
776 P6-Santinka
|
49
|
772 P2-Riegrovy sady
|
92
|
Tab. 2-18 Highest daily pollutant concentrations, manual methods, Prague 2000
|
SO2 [μg.m-3]
|
SPM [μg.m-3]
|
NOx [μg.m-3]
|
|
code and name of station
|
conc.
|
date
|
code and name of station
|
conc.
|
date
|
code and name of station
|
conc.
|
date
|
|
629 P5-Řeporyje
|
152
|
25.1.
|
446 P8-Sokolovská
|
256
|
21.4.
|
610 P10-Uhříněves
|
557
|
27.11.
|
|
629 P5-Řeporyje
|
131
|
16.1.
|
437 P5-Svornosti
|
241
|
29.11.
|
610 P10-Uhříněves
|
549
|
1.12.
|
|
629 P5-Řeporyje
|
120
|
28.1.
|
437 P5-Svornosti
|
217
|
23.11.
|
437 P5-Svornosti
|
510
|
25.1.
|
|
629 P5-Řeporyje
|
96
|
22.2.
|
437 P5-Svornosti
|
211
|
22.11.
|
437 P5-Svornosti
|
502
|
5.1.
|
|
629 P5-Řeporyje
|
92
|
29.1.
|
446 P8-Sokolovská
|
202
|
23.3.
|
437 P5-Svornosti
|
491
|
19.10.
|
|
629 P5-Řeporyje
|
92
|
4.2.
|
437 P5-Svornosti
|
201
|
23.3.
|
437 P5-Svornosti
|
486
|
21.1.
|
|
629 P5-Řeporyje
|
92
|
27.1.
|
446 P8-Sokolovská
|
200
|
20.4.
|
610 P10-Uhříněves
|
478
|
28.11.
|
|
629 P5-Řeporyje
|
88
|
20.2.
|
437 P5-Svornosti
|
189
|
1.2.
|
446 P8-Sokolovská
|
472
|
11.2.
|
|
629 P5-Řeporyje
|
81
|
23.2.
|
437 P5-Svornosti
|
183
|
29.3.
|
610 P10-Uhříněves
|
464
|
30.11.
|
|
629 P5-Řeporyje
|
77
|
14.2.
|
437 P5-Svornosti
|
169
|
21.11.
|
446 P8-Sokolovská
|
421
|
23.11.
|
Tab. 2-19 Stations with highest annual arithmetic means of pollutant
concentrations, manual methods, Prague 2000
|
SO2 [μg.m-3]
|
SPM [μg.m-3]
|
NOx [μg.m-3]
|
|
code and name of station
|
mean
|
code and name of station
|
mean
|
code and name of station
|
mean
|
|
629 P5-Řeporyje
|
15
|
437 P5-Svornosti
|
92
|
437 P5-Svornosti
|
185
|
|
1350 P6-Ruzyně VÚRV
|
11
|
446 P8-Sokolovská
|
80
|
446 P8-Sokolovská
|
156
|
|
430 P1-Rytířská
|
4
|
430 P1-Rytířská
|
42
|
1137 P1-Národní muzeum
|
87
|
|
457 P10-Šrobárova
|
4
|
860 P4-OHS Antala Staška
|
35
|
430 P1-Rytířská
|
76
|
|
|
|
1177 P4-Libuš-HM
|
34
|
457 P10-Šrobárova
|
59
|
|
|
|
862 P7-ZOO
|
34
|
610 P10-Uhříněves
|
57
|
|
|
|
1137 P1-Národní muzeum
|
32
|
629 P5-Řeporyje
|
52
|
|
|
|
629 P5-Řeporyje
|
31
|
860 P4-OHS Antala Staška
|
41
|
|
|
|
610 P10-Uhříněves
|
29
|
|
|
|
|
|
457 P10-Šrobárova
|
28
|
|
|
Tab. 2-20 Stations with highest relative frequency of IHd exceedence,
manual methods, Prague 2000
|
SO2 [%]
|
SPM [%]
|
NOx [%]
|
|
code and name of station
|
rel. freq.
|
code and name of station
|
rel. freq.
|
code and name of station
|
rel. freq.
|
|
446 P8-Sokolovská
|
76.8
|
437 P5-Svornosti
|
6.22
|
446 P8-Sokolovská
|
76.8
|
|
437 P5-Svornosti
|
73.4
|
446 P8-Sokolovská
|
1.62
|
437 P5-Svornosti
|
73.4
|
|
1137 P1-Národní muzeum
|
29.2
|
629 P5-Řeporyje
|
0.00
|
1137 P1-Národní muzeum
|
29.2
|
|
430 P1-Rytířská
|
18.5
|
860 P4-OHS Antala Staška
|
0.00
|
430 P1-Rytířská
|
18.5
|
|
|
|
1177 P4-Libuš-HM
|
0.00
|
610 P10-Uhříněves
|
12.4
|
|
|
|
610 P10-Uhříněves
|
0.00
|
629 P5-Řeporyje
|
10.4
|
|
|
|
430 P1-Rytířská
|
0.00
|
457 P10-Šrobárova
|
9.4
|
|
|
|
1137 P1-Národní muzeum
|
0.00
|
860 P4-OHS Antala Staška
|
4.4
|
Tab. 2-21 Stations with highest values of 95th percentiles of daily pollutant
concentrations, manual methods, Prague 2000
|
SO2 [μg.m-3]
|
SPM [μg.m-3]
|
NOx [μg.m-3]
|
|
code and name of station
|
95th percentile
|
code and name of station
|
95th percentile
|
code and name of station
|
95th percentile
|
|
629 P5-Řeporyje
|
59
|
437 P5-Svornosti
|
151
|
437 P5-Svornosti
|
352
|
|
1350 P6-Ruzyně VÚRV
|
19
|
446 P8-Sokolovská
|
135
|
446 P8-Sokolovská
|
294
|
|
457 P10-Šrobárova
|
11
|
1177 P4-Libuš-HM
|
73
|
1137 P1-Národní muzeum
|
177
|
|
430 P1-Rytířská
|
10
|
430 P1-Rytířská
|
69
|
430 P1-Rytířská
|
151
|
|
|
|
860 P4-OHS Antala Staška
|
63
|
610 P10-Uhříněves
|
146
|
|
|
|
1137 P1-Národní muzeum
|
61
|
629 P5-Řeporyje
|
132
|
|
|
|
862 P7-ZOO
|
58
|
457 P10-Šrobárova
|
114
|
|
|
|
629 P5-Řeporyje
|
57
|
860 P4-OHS Antala Staška
|
97
|
|
|
|
610 P10-Uhříněves
|
56
|
|
|
|
|
|
457 P10-Šrobárova
|
55
|
|
|
|
Fig. 2-10
|
Annual courses of daily concentrations of principal
pollutants at selected stations, Prague – part 1, 2000
|
Fig. 2-11
|
Annual courses of daily concentrations of principal
pollutants at selected stations, Prague – part 2, 2000
|
