Articles | Volume 9, issue 4
https://doi.org/10.5194/amt-9-1431-2016
https://doi.org/10.5194/amt-9-1431-2016
Research article
 | 
04 Apr 2016
Research article |  | 04 Apr 2016

Investigation of potential interferences in the detection of atmospheric ROx radicals by laser-induced fluorescence under dark conditions

Hendrik Fuchs, Zhaofeng Tan, Andreas Hofzumahaus, Sebastian Broch, Hans-Peter Dorn, Frank Holland, Christopher Künstler, Sebastian Gomm, Franz Rohrer, Stephanie Schrade, Ralf Tillmann, and Andreas Wahner

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Short summary
The hydroxyl radical is the key reactant that controls the chemical transformation of pollutants in the atmosphere. Observations of nighttime radicals concentrations were larger than predicted by models in field campaigns in forested and urban environments. Here, we investigated, if measurements could have been affected by artifacts. No significant interferences were found for atmospheric concentrations of reactants in ozonolysis experiments, but small artificats from nitrate radicals.