ATMOSPHERIC CHEMISTRY AND BIOMASS BURNING

TABLE 6.27 Estimated Emissions from Biomass Burning Compared to Global Emissions  

Species Biomass burning (Tgof element / yr) All sources (Tg of element / yr) Biomass burning (%) 

FIGURE 6.40 Stack gas temperature and emissions of various species from an experimental burning of grass in Venezuela (adapted from Crutzen and Andreae, 1990). 

The use of in situ techniques such as FTIR in both laboratory and field studies has also permitted measurement of a variety of compounds associated with biomass burning that are difficult to analyze by traditional methods. For example, as seen in Fig. 6.41, Yokelson et al. (1996, 1997) have identified formic and 

FIGURE 6.41 Infrared spectra of gases from burning a hardwood (a) when glowing combustion and white smoke are observed and (b) 1 min later when there is no longer white smoke (adapted from Yokelson et al., 1997). 

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