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Within the framework of the National Scientific Program " Environmental Protection and Reduction of Risks of Adverse Events and Natural Disasters" funded by the Ministry of Education and Science, the System for Chemical Weather Forecast (air pollution) was created. The System present the 72 hours forecast for surface air pollution in real-time, starting from 00:00 of the current day and extending two more days ahead for the territory of Bulgaria, with a spatial resolution of 3 km and for three selected cities - Sofia, Plovdiv, and Varna, with a resolution of 1 km each. For each of the mentioned domeins, one of the five main pollutants can be selected - Nitrogen Dioxide (NO2), Ozone (O3), Sulfur Dioxide (SO2), Fine Particulate Matter with a diameter below 10 µm (PM10), Fine Particulate Matter with a diameter below 2.5 µm (PM2.5), from which the Air Quality Index (AQI) is calculated and visualized. The system also forecasts the Universal Thermal Comfort Index (UTCI), indicating the thermal comfort/discomfort of the human body. |
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Fine Particulate Matter (PM2.5) Sources Dust is a major atmospheric air pollutant. Its harmful health effects mainly depend on the size and chemical composition of suspended particulate matter, the chemicals adsorbed on their surface, including mutagens, DNA modulators, and others, as well as the portion of the respiratory system in which they deposit. Major sources of dust include industry, transportation, and energy production. Impact on Human Health Dust enters the body mainly through the respiratory system, where larger particles are retained in the upper respiratory tract, while finer particles (under 10 µm - PM10) reach the lower parts of the respiratory system, leading to damage to lung tissues. Children, the elderly, and people with chronic respiratory diseases, the flu, or asthma are particularly sensitive to high levels of PM10. Legislation Information on the impact of atmospheric pollutants on human health is coordinated with the Ministry of Health (MH) and the National Center for Public Health and Analyses under Art. 44, para. 2 of Regulation No. 12 of July 15, 2010, and Order No. RD-09-159/14.04.2003 of the MH. Annual Average Standard - 25 µg/m3 https://eea.government.bg/bg/output/daily/2004-air/november/30-11.html |
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General conditions (Terms of Use): This information about the data values visualized through graphs is preliminary and should not be considered as a final, accurate and / or complete, and cannot be compared to the norms. The parameters of the presented data are numerically simulated based on the analysis of the latest data available. New data acquisition may result in changes of the concentrations and the parameters of the atmosphere. This is numerically simulated, not a measured values and should not be copied or used by third parts. Whoever uses this data in any way takes full responsibility and may not relay on it or pursue any claims. |