Abstract
In this study, the concentration and size distribution of fine dust particles were analyzed by measuring the dust in air generated during the cleaning of an indoor office. We measured the PM10, PM2.5, and PM1.0 and analyzed the size distributions of particles larger than 0.3 ยตm in diameter during cleaning. The results showed that the concentration of PM10 increased rapidly during cleaning, whereas the PM1.0 did not increase. Prior to sweeping the floor with a broom, the fine dust concentration was ~50 ยตg mโ3, but it increased to ~400 ยตg mโ3 as the sweeping progressed. When a vacuum cleaner was used, the concentration of PM10 increased, but the increase in PM2.5 was relatively small. As in the case of sweeping, the PM1.0 did not increase while vacuuming.
Highlights
There are various reports that fine dust and ultrafine dust are severe health hazards
It is still higher than the developed countries and especially higher than twice the 20 ฮผg mโ3 that is the annual mean PM10 concentration of the World Health Organization (WHO) air quality guideline
Concentration and Size Distribution of Dust Suspended in Cleaning with a Broom
Summary
There are various reports that fine dust and ultrafine dust are severe health hazards. The annual average concentration of PM10 in Seoul was 44 ฮผg mโ3 in 2013, 46 ฮผg mโ3 in 2014, 45 ฮผg mโ3 in 2015, and 48 ฮผg mโ3 in 2016 it had decreased from 61 ฮผg mโ3 in 2007 to 41 ฮผg mโ3 in 2012. It is still higher than the developed countries and especially higher than twice the 20 ฮผg mโ3 that is the annual mean PM10 concentration of the World Health Organization (WHO) air quality guideline. The short-term solution is to reduce the suspended particles indoors where people spend most of their time
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