Extended Data Figure 4: Bacterial cell counts for Arctic samples.
From: A marine biogenic source of atmospheric ice-nucleating particles
a, Bacterial cell counts from flow cytometry performed on Arctic SSW (black squares), fresh Arctic SML (red circles). b, The SML sample cell counts plotted against T50 (temperature at which 50% of droplets frozen) and line of best fit, R2 = 0.29.
