ccc & msc-w - EMEP

Emission reductions estimated for the whole EMEP area satisfied in 1994 and 1996 the
requirements from the First NO x Protocol, but according to the official reported values, 6
countries had larger still NO x emissions in 1996 than in 1987.
European emissions of ammonia appear to have dropped by approximately 15% between 1990
and 1997. The almost constant emission trend before 1990 is primarily a result of the
assumptions made to estimate the large amount of missing data for most countries.
Emission trends have been derived at MSC-W from officially reported emissions and expert
estimates. It is not possible at present to provide official emission trends because not all Parties
to the Convention have reported national totals for all years since 1980. For SO2, only 43% of
the countries have reported emission data for all years, and this percentage decreases to 41%
for NO x and 16% for ammonia. National emission trend values are given in Tables 1.1 -1.3 at
the end of this chapter and visualised in Figure 1.1. for trends since 1985. These are the values
that have been used for the assessment summarised in the following.
ktonnes/year
3.0*10 4
2.5*10 4
2.0*10 4
1.5*10 4
1.0*10 4
5.0*10 3
EMEP area emissions
0.0*10
1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
0
0.0*10 0
All data available on the internet at http://www.emep.int
emep/msc−w
Figure 1.1. Estimated emission trends since 1985 for the whole EMEP area used in
acidification model calculations (emission values by country are given in Tables 1.1-1.3;
adapted from Mylona, 1999).
Trends on emissions, depositions, transboundary depositions, and exceedances to critical loads
have been estimated for each Party to the Convention on Long Range Transboundary Air
Pollution. The analysis has been performed separately for sulphur and nitrogen compounds,
using conditional critical loads calculated by the Coordination Centre for Effects (CCE). In
addition, the ecosystem area in each country exposed to exceedances of 5th percentile critical
load has been calculated as percentage of the total area of the country. This information is
given in the Appendix, using three different figures for each country.
14
Emissions
NH3 (as N)
NO2 (as N)
SO2 (as S)
3.0*10 4
2.5*10 4
2.0*10 4
1.5*10 4
1.0*10 4
5.0*10 3