Analysis of the inventory methods for pollutants in ambient air in the EIA reports (environmental impact assessment) for investment proposals implemented on the territory of Riew Ruse for the 2013-2016 period

The inventory methods used for pollutants in the Republic of Bulgaria for the purposes of the EIA
reports are: Updated uniform inventory methodology for emissions of harmful substances in the
air (Order № 165/20.02.2013 of MEW), EMEP/EEA Air pollutant emission inventory guidebook of
the EEA and AP-42, Compilation of Air Pollutant Emission Factors of EPA – U.S. Environmental
Protection Agency. The choice of methods used for the assessment is made by the independent
expert who works on it. As a result of using different inventory methods for pollutants in ambient
air in similar installations (sites) the recorded values for the amounts of emitted pollutants are
different. The purpose of the study is to make a comparison between the estimated amounts of
the same pollutants in similar sites /performing one and the same activity/ by using different
methods in the approved EIA reports and register the deviations; to assess the need of
establishing a uniform methodology for assessing the Ambient air component in EIA reports,
reflecting the essence of the planned investment - new investment or expansion of an existing
site.