Fig. 4: Timeseries of volatile organic compound emissions of aerosolized microalgae ensemble.

Panels a and c illustrate results for two experiments with the Limnomonas gaiensis strain VR66-07 over Experiments 4 and 5, respectively, and panels b and d show the results with strain R86-47 over Experiments 3 and 6, respectively. Only the VOC m/z 47.05 was detected and corresponds to the protonated signal for ethanol. Five different phases of the experiments are highlighted in different colors, e.g., emission from MilliQ water (gray dots, n = 212–1200), emissions from bubbling MilliQ water (black dots, n = 757–2134), emissions during first mixing (homogenization, purple dots, n = 351–685), emissions from MJ3 (orange dots, n = 3360–3720) and SJ9 (blue dots, n = 3180–3670) treatment.