Fig. 5: Comparison of relative cyanate availability across different environments.
From: Cyanate is a low abundance but actively cycled nitrogen compound in soil
Samples include soils (n = 17), salt marsh sediments (n = 12), pore water of salt marsh sediments (n = 10), ocean (n = 75), activated sludge (n = 12), and discharge (n = 9) from municipal wastewater treatment plants. Relative cyanate availability is represented as the ratio of extractable ammonium over cyanate. Different letters indicate significant differences in relative cyanate availability between environments (Kruskal-Wallis test followed by Dunn’s test, ɑ = 0.05). The box plot shows the median (solid line within box), the average (rectangle), 25th and 75th percentiles as vertical bars, 10th and 90th percentiles as error bars and minimum and maximum as circles. Data on marine cyanate and ammonium concentrations are from Widner et al.22.
