Term

Abbreviation

Secchi depth,
in meters (m)

Total suspended solids,
in milligrams per liter (mg/l)

TSS

Chlorophyll-a,
in micrograms per liter (µg/l)

CHLA

Dissolved inorganic phosphorus,
in milligrams per liter (mg/l)

DIP

Dissolved inorganic nitrogen,
in milligrams per liter (mg/l)

DIN

Submersed aquatic vegetation

SAV

Freshwater tidal Potomac River segment

TF2

Upper tidal Potomac River segment

UTR

Lower tidal Potomac River segment

LTR

Oligohaline Potomac Estuary segment

POTOH

Mesohaline Potomac Estuary segment

POTMH

State of Maryland Department of
Natural Resources

MD DNR

Chesapeake Bay Program