Effect of spring grass fires on indoor air quality in air-conditioned office building

• DOI: 10.3952/physics.v61i3.4519
• Publication Date: 2021-10-11T20:31:47Z
• Authors: Julija Pauraitė; Inga Garbarienė; Agnë Minderytė; Vadimas Dudoitis; Gediminas Mainelis; Lina Davulienė; Ieva Uogintė; Kristina Plauškaitė; Steigvilë Byčenkienė
• Keywords: Aethalometer

Open biomass burning (OBB) is a significant air pollution source, but it still not clear to what extent OBB events affect indoor quality [1]. Outdoor and measurements of submicron particulate matter (PM1) were conducted on 25–29 April (2019) in the capital city Vilnius (Lithuania). Fires from neighbouring countries (Belarus, Ukraine Russia) vicinity broke out during measurement campaign. The temporal evolution transport plume investigated by combining mass backward trajectory analysis fire satellite observation (MODIS) database. Measurements PM1 chemical composition real-time performed using an aerosol speciation monitor (ACSM) aethalometer. Organic was clearly dominant component, accounting for >70%, both outdoor PM1. filtering system office building removed approximately up 55% Despite significantly lower level office, highly acidic could have harmful effects human health. Source apportionment carbonaceous revealed importance OBB-related particles (average 56%) air.