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Air Quality Guidelines Global Update 2005 - World Health ...

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22<br />

AIR QUALITY GUIDELINES<br />

Fig. 3. Percentage changes in PM10 emissions in selected European countries<br />

between 1990 and 2001<br />

United Kingdom<br />

Sweden<br />

Netherlands<br />

Germany<br />

Luxembourg<br />

France<br />

Italy<br />

Ireland<br />

Denmark<br />

Spain<br />

Austria<br />

Greece<br />

Portugal<br />

Belgium<br />

Finland<br />

Switzerland<br />

Liechtenstein<br />

Norway<br />

Hungary<br />

Poland<br />

Czech Republic<br />

Source: <strong>Air</strong> <strong>Quality</strong> Expert Group (7).<br />

Fig. 4. Temporal trends in sulfur dioxide emissions by source category in Hong Kong,<br />

China, 1990–2004<br />

Tonnes<br />

200 000<br />

180 000<br />

160 000<br />

140 000<br />

120 000<br />

100 000<br />

80 000<br />

60 000<br />

40 000<br />

20 000<br />

−42%<br />

−39%<br />

−36%<br />

−23%<br />

−17%<br />

−13%<br />

−9%<br />

−1%<br />

−1%<br />

−1%<br />

−26%<br />

−18%<br />

−8%<br />

–60 –40 –20 0 20 40 60 80<br />

0<br />

1990 1991 1992 1993 1994 1995 1996 1997<br />

Year<br />

1998 1999 2000 2001 2002 2003 2004<br />

Source: Hong Kong Environmental Protection Department (14).<br />

3%<br />

5%<br />

5%<br />

2%<br />

3%<br />

9%<br />

19%<br />

European Union<br />

European Free Trade Area<br />

Accession countries<br />

Other fuel combustion<br />

Civil aviation<br />

Shipping<br />

Road transport<br />

Public power generation<br />

71%

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