Immissions

Immission is the concentration of pollutants, which originate from different sources, in a certain space in a certain time in the environment. By measuring immissions the quality of surrounding air is defined.

Monitoring the quality of air in Croatia has been carried out as part of the state network for permanent monitoring of air quality and the local networks in the counties and towns, which include special-purpose measuring stations.

The Croatian Environment Agency publishes information about measuring stations for monitoring the air quality and the results of measuring pollutants’ concentration.

Two networks have been established for the purpose of monitoring the influence of HEP’s thermal power plants on the surrounding air quality:

Network for monitoring the air quality HEP Zagreb

• Vrhovec – monitoring the immission of nitrogen-dioxide (NO₂)
• Bijenik (mobile station) – monitoring the immission of sulfur-dioxide (SO₂) and solid particles with a diameter smaller than 10 μm (PM₁₀)

Measuring network of the Thermal Power Plant Plomin

• Ripenda – monitoring the immission of sulfur-dioxide (SO₂), solid particles with a diameter smaller than 10 μm (PM₁₀), nitrogen-dioxide (NO₂) and surface ozone (O₃)
• Sv. Katarina– monitoring the immission of sulfur-dioxide (SO₂), nitrogen-dioxide (NO₂) and surface ozone (O₃)
• Plomin – monitoring the immission of sulfur-dioxide (SO₂) and nitrogen-dioxide (NO₂)
• Klavar – monitoring the immission of solid particles with a diameter smaller than 10 μm (PM₁₀)