서울시 "3월 초미세먼지 감소…코로나19로 교통량 줄어든 영향"<br /><br />The coronavirus pandemic led to Seoul seeing an improvement in air quality in March.<br />According to data collected by sensors around the city, the level of ultra-fine dust at some 50 places with high traffic congestion fell from 'bad' to 'normal'.<br />The total volume of traffic in March was down by 15 percent on year.<br />The city government said this is due to COVID-19 as many people refrained from going out.<br />
