A new study shows that 83 percent of the bacteria found in minute dust particles in South Korea is also present in China's fine dust particles.
The figure was slightly lower between South Korea and Japan, with the similarity of airborne bacteria at 73 percent.
The finding suggests that bacteria may be blowing to the Korean Peninsula from China along with micro dust particles.
A team of researchers at Seoul National University's Graduate School of Public Health measured fine dust concentrations in Seoul, Beijing and Nagasaki over a period of one year.
They analyzed airborne microbes contained in the dust particles and recently released the findings in the journal Scientific Reports.
The researchers collected fine dust for a yearlong period on building rooftops of Seoul National, Beijing and Nagasaki Universities.
They then brought the samples to Seoul National University where they extracted bacterial DNA, examined the sequencing and discovered the overlapping nature of airborne bacteria among the three countries.