Air quality worsens in BiH due to increased heating demands, traffic emissions

SARAJEVO, Jan. 2 (Xinhua) -- Cities across Bosnia and Herzegovina (BiH) are experiencing a significant decline in air quality due to increased seasonal heating demands and traffic emissions.

As of 3:00 p.m. local time on Thursday, Sarajevo's air quality index (AQI) reached such a level of 357 that PM2.5 concentration was 254 micrograms per cubic meter and PM10 265 micrograms per cubic meter.