Hydrocarbon Concentrations at Harvard Forest EMS Tower 1992-2001

Hydrocarbons are products of incomplete combustion and also emitted by vegetation. Hydrocarbons are important precursors for photochemical ozone formation. A system to quantify concentrations of several low-molecular weight hydrocarbons was installed at the EMS tower in the summer of 1992. The measurements were intended to help resolve questions about the potential reactivity in rural New England atmosphere and identify and quantify biogenic hydrocarbon emissions.

碳氢化合物（Hydrocarbons）是不完全燃烧的产物，同时也可由植被排放产生。碳氢化合物是光化学臭氧生成过程的重要前体物。1992年夏季，一套可定量测定多种低分子量碳氢化合物浓度的监测系统在EMS塔完成部署。本次测量旨在厘清新英格兰乡村大气中潜在反应活性相关的科学问题，并识别与定量测定生物源碳氢化合物的排放量。