The Low Level Jet in Maryland: Profiles Observations
the air mass characteristics of the jet as the residual layer, which includes the LLJ, is mixed downward. While no precise measurement is possible, it appears that O3 concentrations within the jet are, on average, on the order of 60-80 ppbv with 30-40 μgm-3 of PM 2.5. Thus the jet transports polluted air into the region at levels