Research Article
Influence of Biomass Burning on Temporal and Diurnal Variations of Acidic Gases, Particulate Nitrate, and Sulfate in a Tropical Urban Atmosphere
Table 2
Daytime and nighttime levels of air pollutants (unit: μg m−3) and meteorological parameters based on 12 hr average.
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Haze period from 23 August 1997 through 03 October 1997 for 11 no days; bnonhaze period from 24 July 1997 through 22 August for 20 no days; c12 hr average for both daytime and nighttime; dD/N = (mean concentration during daytime)/(mean concentration during nighttime); ethe ratio that has exhibited a significant diurnal variation at . |