BULGARIAN ACADEMY OF SCIENCE

National Institute of Meteorology and Hydrology

Bulgarian legislations for Sulfur Dioxide (SO2):
Hourly threshold value (HT): 350 μg/m3
Permitted number of exceedings of HT in a year: 24
Daily threshold value (DT): 125 μg/m3
Permitted number of exceedings of DT in a year: 3
Alert threshold (hourly value): 500 μg/m3

DOMAINS

 
 
Funded by the
National Science Fund of Bulgaria