Croatian Air Quality Monitoring Strategy 2002 − onward Sonja Vidič Meteorological and Hydrological Service of Croatia Zagreb, Grič 3,

Regulation on Sitting of National Network Stations for Continuous Air Quality Monitoring (OG No. 4/02) Programme on Air Quality Measurement in the National Air Quality Monitoring Network (OG No. 43/02) WHY 2002 ?

Historical overview  Before 1974: Governmental decision on sitting criteria and conditions for building large industrial facilities and thermal power plants (Zagreb TE I, TE II, Rijeka I)  1974: Regulation on obligatory environmental impact studies for large industrial sources and thermal power plants, revised in  US experience and US regulations (Clean Air Act 1970)  Nuclear Power Plants Sitting (3 sites examined, )  Extensive use of point source dispersion models to define optimal stack height (Zagreb, , Rijeka 1974, Plomin 1980, Zenica, BIH 1986) and concentration distribution arround sources  Field experiments and measurement campaigns to support and verify models, to analyse meteorological and air pollution conditions – until  1995: First Clean Air Act

With 1995 Clen Air Act Air quality criteria have been set but Monitoring network has not been regulated or obligatory Monitoring strategy has not been defined Permitting regulation still in use

1992 Croatia became a party to the 1979 Convention on Long-range transboundary air pollution (CLRTAP) by succession and to the EMEP protocol EMEP: Co-operative Programme for Monitoring and Evaluation of the Long Range Transmission of Air Pollutants in Europe Croatia participated in EMEP with its measurements at 2 sites since 1981

Precipitation chemistry monitoring network run by MHSC since m 1594 m O3O3 O3O3

Ozone (2006) continuous continuous

Deposition of sulphates in precipitation

Deposition of nitrates and ammonium in precipitation

Precipitation days Dry days Trajectory-sector analysis

Precipitation days Dry days Trajectory-sector analysis

HR total area of 87,677 km 2, landmass area 56,610 km 2

Major air pollution sources

Total SO 2, NO 2 and CO emissions

Precipitation amount

Air temperature

g-eq/ha ACIDIFICATION

g-eq/ha EUTROPHICATION

Air Quality Monitoring Network Desinić RURAL AREAS NATIONAL PARKS AND ECOLOGICALLY SENSITIVE AREAS (RURAL AREAS) URBAN AND INDUSTRIAL AREAS AGGLOMERATIONS Urban automatic 10Rural (sampling) 12

URBAN SITES

2

− MHSC − AMGI − EKONERG