convention on long-range transboundary air pollution emep task force on measurements and modelling...
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![Page 1: CONVENTION ON LONG-RANGE TRANSBOUNDARY AIR POLLUTION EMEP Task Force on Measurements and Modelling Particulate Matter Assessment Report Czech National](https://reader036.vdocuments.site/reader036/viewer/2022062320/56649d235503460f949f9d65/html5/thumbnails/1.jpg)
CONVENTION ON LONG-RANGE
TRANSBOUNDARY AIR POLLUTION
EMEP Task Force on Measurements and ModellingParticulate Matter Assessment Report
Czech National Contribution
Milan Váňa , Jan Horálek, Štěpán Rychlík, Helena Hnilicová
Czech Hydrometeorological Institute
Paris 29.11-1.12.2006
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EmiseTIME SERIES OF TSP EMISSIONS
1267
0
1095
0
10901015988950
840767
565525425
367258
211178127 84 66 57 70 76 79 76 78
0
200
400
600
800
1000
1200
1400
year
TSP
[Mg]
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PM10 trend (annual means, g.m-3)
0
10
20
30
40
50
60
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005
traffic urban suburban rural regional
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PM10 trend (annual means, g.m-3)
agglomerations
0
10
20
30
40
50
60
70
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005
Praha NW region NE region Brno
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PM10 trend (annual means, g.m-3)
urban stations
0
10
20
30
40
50
60
70
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005
TCTN TKAR UMOM LLIM
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PM10 - annual variation, g.m-3, 1996-2005
0
10
20
30
40
50
60
1 2 3 4 5 6 7 8 9 10 11 12
traffic urban suburban rural regional
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PM10 - annual variation, g.m-3
agglomerations 1996-2005
0
10
20
30
40
50
60
70
80
1 2 3 4 5 6 7 8 9 10 11 12
Praha NW region NE region Brno
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PM2,5 - annual variation, g.m-3, 2005
0
5
10
15
20
25
30
35
40
45
50
1 2 3 4 5 6 7 8 9 10 11 12
urban traffic suburban
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PM2,5/ PM10 ratio 2005
0,40
0,50
0,60
0,70
0,80
0,90
1,00
1 2 3 4 5 6 7 8 9 10 11 12
urban traffic suburban
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Poměr Košetice
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Conclusions (1)
• Decreasing trend in the period 1996-1999 at all types of stations.
• This trend was stopped in the beginning of this century and the concentrations slightly increased and the differences between types of stations are smaller
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Conclusions (2)
• Increase of PM10 concentrations at rural stations mainly due to combustion practices of inhabitants in small villages.
• Hand in hand with increasing prices of oil and natural gas, the people in villages and small towns tend to return back to traditional cool and wood burning
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Conclusions (3)
The most serious air pollution situation caused by suspended particles is in the Moravian-Silesian region (Ostrava-karviná agglomeration).
• In addition to transport and local sources of PM significant contribution is made by further emission sources (metallurgy, fuel processing).
• Regional transfer from Poland (heavily industrialized Katowice region).
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Conclusions (4)
• Certain seasonal course of the ratio between PM2,5 and PM10, that is connected with the seasonal character of several emission sources.
• Emissions from combustion sources show higher shares of PM2,5 fraction than for instance emissions from agriculture and reemission during dry and windy weather. Consequently, heating in the cold period can cause the higher share of PM2,5.
• The fraction ratio ranges between 0,69-0,85 in 2005. • The 2004-2005 ratio at the EMEP station Košetice is 0,87.