Influence of Biomass Burning on Temporal and Diurnal Variations of Acidic Gases, Particulate Nitrate, and Sulfate in a Tropical Urban Atmosphere
Figure 4
Representative days of backward air trajectories for three cases: (a) a prehazy day (14 June 1997); (b) a hazy day (29 August 1997); and (c) a posthazy day (05 December 1997).