The daily bulletin contains information about the levels of certain key parameters, characterizing air quality, in accordance with the national and European legislation: fine particulates (PM10), sulfur dioxide, nitrogen dioxide, carbon monoxide and ozone. Only registered exceedances of these pollutants are published. Information on norms for the content of pollutants in the ambient air, according to the national and European legislation, and information on the health effects of air pollution, is published on the website of the ExEA http://eea.government.bg/bg/output/daily/norms-air.doc.

Remarks:
The abbreviations are listed at the above address.

The data from the automatic stations are received in real time in National database for Air Quality Control in ExEA and regional databases in RIEW and are preliminary. After checking for accuracy and verification, the final data is published in the quarterly bulletins and the National report on the state of the environment.

Archive of the daily bulletin on ambient air quality
Archive to march 2012

Information to alert the population
In case of exceedances of the alert threshold for sulfur dioxide, nitrogen dioxide and ozone, information is provided to the population in accordance with "Instruction for informing the population in the case of exceedance of the established alarm thresholds and indicators". The last recorded exceedances of the alert thresholds for sulfur dioxide, nitrogen dioxide and ozone in ambient air are posted on the website of the ExEA http://pdbase.government.bg/airq/alarm-en.jsp.

Other information bulletins
Information on the levels of total dust, PM₁₀, PM_2.5, benzene, lead aerosols, arsenic, cadmium, nickel, polyaromatic hydrocarbons and some country-specific pollutants such as ammonia, phenol, carbon sulphide and others is presented in the quarterly bulletins and the National report on the state of the environment http://eea.government.bg/en/output/index.html.

Measures for air quality improvement
In the settlements with air pollution problems municipal programs have been developed for reduction of atmospheric pollutants levels and achievement of the standards. Settlements and pollutants, for which municipal programs for air quality improvement are developed, have been published on the website of ExEA http://eea.government.bg/bg/nsmos/air/roukav/index.html.

Evaluation of controlled atmospheric pollutants impact on human health (source: Ministry of Health)
Arsenic, Cadmium, Chromium–six-valency, Hydrogen sulfide, Manganese, Nitrogen dioxide, Ozone, Sulfur dioxide, Toluene, Total dust and fine dust particles (PM₁₀ and PM_2.5), Polyaromatic hydrocarbons (PAH), Styrene, Benzene, Carbon monoxide, Lead, Ammonia, Carbon sulfide