

Ref. No. [UMCES] CBL 2015-014
ACT VS15-07
26
C.
B.
A.
Figure 9.
Time series results of the Xylem EXO-pH1 sensor for the stable portion of the
freshwater trials. Measurements taken during temperature and pH shifts have been removed.
Panel (a) temperature and salinity conditions during the freshwater trials; panel (b) measured
pH from the EXO-pH1 plotted against both Metrohm and Dye reference pH measurements;
and, panel (c) the difference between EXO and reference pH values.