72 
MPNTF Surface 
MPNOH Surface 
Water Temperature 
Water Temperature 
PMKTF Surface 
PMKOH Surface 
Water Temperature 
Water Temperature 
RPPTF Surface 
RPPOH Surface 
Water Temperature 
Water Temperature 
PAXTF Surface 
PAXOH Surface 
Water Temperature 
Water Temperature 
Figure VI-2. Plots of measured ambient dissolved oxygen concentrations (•, mg liter 1 ) and calculated dissolved 
oxygen deficit (o, mg liter 1 ) versus water temperature (°C) in tidal fresh and oligohaline segments of the Mattaponi 
(MPNTF and MPNOH, respectively) and Pamunkey (PMKTF and PMKOH, respectively) rivers and in the tidal fresh 
and oligohaline segments of Rappahannock (RPPTF and RPPOH, respectively) and Patuxent (PAXTF and PAXOH, 
respectively) rivers for comparison. 
Source: Chesapeake Bay Water Quality Monitoring Program database, http://www.chesapeakebay.net/data 
chapter vi 
Guidance for Deriving Site Specific Dissolved Oxygen Criteria 
