Phosphorus Availability Alters the Effects of Silver Nanoparticles on Periphyton Growth and Stoichiometry
Fig 2
Relationship between background-corrected periphyton Ag and Chl-a.
Background-corrected periphyton Ag was calculated as Ag content in treatments with AgNPs added—Ag in No-Ag treatment from the same P treatments in L224 (a), L239 (b), and L222 (c). Different symbols represent P treatments with Low-Ag treatments shown as filled symbols and High-Ag treatments shown as shaded symbols. Asterisks indicate low Low-Ag treatments that are significantly different than the corresponding High-Ag treatments with in the same P treatment. Error bars around symbols are standard deviations. Note the log scale for the x-axes.