The atmospheric chemistry of trace gases and particulate matter emitted by different land uses in Borneo

摘要: We report measurements of atmospheric composition over a tropical rainforest and nearby oil palm plantation in Sabah, Borneo. The primary vegetation each the two landscapes emits very different amounts kinds volatile organic compounds (VOCs), resulting distinctive VOC fingerprints boundary layer for both landscapes. VOCs Borneo are dominated by isoprene its oxidation products, with significant additional contribution from monoterpenes. Rather than consuming main oxidant, OH, these high concentrations appear to maintain as has been observed previously Amazonia. boundary-layer characteristics mixing ratios those measured Compared Bornean rainforest, air contains much more isoprene, monoterpenes relatively less important, flower scent, estragole, is prominent. Concentrations nitrogen oxides greater above agro-industrial landscape this leads changes some secondary pollutant (but not, currently, differences ozone). Secondary aerosol shows isoprene. Primary biological dominates super-micrometre likely be sensitive land-use change, since fungal source bioaerosol closely linked above-ground biodiversity.