National Institute of Meteorology and Hydrology
National Institute of Geophysics, Geodesy and Geography- Bulgarian Academy of Science
National Research Program "Environmental Protection and Reduction of Adverse Events and Natural Disasters Risks" |
POLLUTANTS |
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72-hours forecast: |
NO2 |
O3 |
SO2 |
PM10 |
PM2.5 |
AQI |
UTCI |
Description of the system for forecasting of the atmospheric pollution (KWFS)(PDF) |
Bulgarian legislation for Ozone (O3):
Daily maximum (8-hour running average) threshold (D8T): 120 μg/m3 Permitted number of exceedings of D8T in a year: 25 (mean for 3 years) Information threshold (hourly value): 180 μg/m3 Alert threshold (hourly value): 240 μg/m3 |
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