National Institute of Meteorology and Hydrology

National Institute of Geophysics, Geodesy and Geography

Bulgarian legislation for Fine Particulate Matter (PM10):
Daily threshold value (DT): 50 μg/m3
Permitted number of exceedings of DT in a year: 35
Yearly threshold value (YT): 40 μg/m3
Permitted number of exceedings of YT: impermissible

DOMAINS

 
 
Funded by the
National Science Fund of Bulgaria