AE-20 Aethalometer data from 'Vehicle Maintenance Facility', McMurdo Station, Antarctica

This page shows a sequence of charts showing measurements taken with the Model AE-20 Aethalometer in a heavy-vehicle maintenance garage: i.e. an enclosed environment within which gasoline and diesel engines were run from time to time. The UVPM channel tracks the BC channel for "pure elemental carbon" particles: however, in some instances, enhancements in the UVPM signal indicate the presence of additional quantities of non-black, UV-absorbing organic compounds. Such events are indicated by arrows on the charts. While this measurement is non-quantitative, it clearly signals (in real time) the presence of these aromatic compounds.










 


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