National Water-Quality Assessment (NAWQA) Project
Go to:
By Robert J. Gilliom, David K. Mueller, and Lisa H. Nowell
U.S. Geological Survey Open-File Report 97-589
TABLES:
---------------------------------------------------------- Multiply By To obtain ---------------------------------------------------------- kilometer (km) 0.6214 mile square kilometer (km2) 0.3861 square mile
Temperature is given in degrees Celsius (°C) which can be converted to degrees Fahrenheit (°F) by the following equation: °F = (1.8 x °C) + 32
AET-H, apparent effects threshold-high
AS, aquifer surveys
AVHRR, Advanced Very High Resolution Radiometer
CAS, Chemical Abstracts Service
CCREM, Canadian Council of Resources and Environmental Ministers
DWA, drinking-water aquifer
ER-M, effects range-median
FSV, factor summary value
GCMS, gas chromatography/mass spectroscopy
HA-L, lifetime health advisary
HPLC, high-pressure liquid chromatography
IBI, Index of Biotic Integrity
IJC, International Joint Commission
LUS, land-use studies
MCL, maximum contaminant level
NAWQA, National Water-Quality Assessment
NM, national median
PAH, polycyclic aromatic hydrocarbon
PCBs, polychlorinated biphenyls
PEL, probable effects level
PTD, mean point-to-tree distance for a reach, in meters
RD, relative density of riparian vegetation
RSD, risk specific dose
SGW, shallow ground water
SMCL, secondary maximum contaminant level
SQAL, sediment-quality advisory level
SQC, sediment-quality criterion
SVOC, semivolatile organic compound
USEPA, U.S. Environmental Protection Agency
USGS, U.S. Geological Survey
VOC, volatile organic compound
WQS, water quality score