다시 뛰는 공정도시 서울!

초록

This study compared the concentrations of heavy metals in PM2.5 and evaluated the behavior and effects of heavy metals. In 2018∼2019, the concentration of heavy metals was shown to be in the order Zn > Pb > Cu > Mn > Ba; this order excluded elements originating in the soil, such as, Al, Ca, Mg, and Fe. The seasonal PM2.5 concentrations order was winter > spring > autumn > summer. The Pb, Cd, Ba, Mn concentrations order was winter > autumn > spring > summer. Ni and V behave differently than other heavy metals because they do not show the lowest concentration in summer. The mass concentration of PM2.5 showed a high correlation with Fe, Pb, Zn, Mn, and Cd. Regarding the correlation coefficient between different metals, Fe was highly correlated with Mn(r=0.888). Fe？Zn, Fe？Ba, Zn？Cd, Pb？Cd, Pb？As, and As？Cd also showed a high correlation coefficient(r=0.600∼0.748). The correlation coefficient between Ni and V was high(r 0.641), but the correlation coefficient with Ni and V and other element