“…Geochemical and Lagrangian back-trajectory analyses were used to evaluate the characteristics of trace elements in atmospheric dry deposition in the Gannan County area of Northeast China. According to the dry deposition flux, the degree of atmospheric pollution of Cd, Hg, Cr, Ni, Pb, As, Cu, Mn, and Zn was lower in the study area than in Beijing, Hebei, and the Chengdu Economic Zone [34,63,64]. However, the levels of Ni, Pb, Zn, and other elements were higher than in Northern France, Lake Erie, and other regions [73][74][75][76][77][78][79][80].…”