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

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]

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

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

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

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

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

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

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

Poměr Košetice

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

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

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).

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.