L-glucan is mainly concentrated in factor 3 with a load of 0.96, so factor 3 can be judged as biomass combustion. Because l-glucan mainly comes from the high temperature combustion of cellulose and hemicellulose in biomass, its properties are stable, and it is difficult to occur decomposition reaction when exposed to atmospheric oxidant, so it is the tracer of biomass combustion<br>
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