ATom: Volatile Organic Compounds (VOCs) from the TOGA instrument, Version 2

This dataset provides concentrations of volatile organic compounds (VOCs) measured by the Trace Organic Gas Analyzer (TOGA) during the four ATom campaigns. These data are relevant to the impact of human-produced air pollution on greenhouse gases and on chemically reactive gases in the atmosphere. Specific data were obtained for radical precursors, tracers of anthropogenic and biogenic activities, tracers of urban and biomass combustion emissions, products of oxidative processing, precursors to aerosol formation, and compounds important for aerosol modification and transformation. TOGA measures a wide range of VOCs with high sensitivity (ppt or lower), frequency (2-minutes), accuracy (often 15% or better), and precision (<3%).

本数据集收录了在四次ATom行动计划期间，通过痕量有机气体分析仪（Trace Organic Gas Analyzer，简称TOGA）测定的挥发性有机化合物（VOCs）浓度。这些数据与人类活动产生的空气污染对温室气体以及大气中化学活性气体的 影响 密切相关。具体数据包括自由基前体、人为和生物源活动示踪剂、城市和生物质燃烧排放示踪剂、氧化处理产物、气溶胶形成前体以及对于气溶胶改性及转化至关重要的化合物。TOGA具备对广泛范围内的VOCs进行高灵敏度（ppt或更低）、高频率（每2分钟一次）、高精度（通常15%或更优）和高精确度（<3%）测量的能力。