| Parameter Cd |
Group |
Parm Nm |
Epa Equivalence |
Result Statistical Basis |
Result Time Basis |
Result Weight Basis |
Result Particle Size Basis |
Result Sample Fraction |
Result Temperature Basis |
Casrn |
Srsname |
Parm Unit |
| 00600 |
Nutrient |
Total nitrogen [nitrate + nitrite + ammonia + organic-N], water, unfiltered, milligrams per liter |
Agree |
|
|
|
|
Total |
|
|
Nitrogen, mixed forms (NH3), (NH4), organic, (NO2) and (NO3) |
mg/l |
| 00601 |
Nutrient |
Total nitrogen [nitrate + nitrite + ammonia + organic-N], suspended sediment, total, milligrams per liter |
Not checked |
|
|
|
|
Suspended |
|
|
Nitrogen, mixed forms (NH3), (NH4), organic, (NO2) and (NO3) |
mg/l |
| 00602 |
Nutrient |
Total nitrogen [nitrate + nitrite + ammonia + organic-N], water, filtered, milligrams per liter |
Agree |
|
|
|
|
Dissolved |
|
|
Nitrogen, mixed forms (NH3), (NH4), organic, (NO2) and (NO3) |
mg/l |
| 00603 |
Nutrient |
Total nitrogen [nitrate + nitrite + ammonia + organic-N], bed sediment, total, dry weight, milligrams per kilogram |
Agree |
|
|
Dry |
|
Bed Sediment |
|
|
Nitrogen, mixed forms (NH3), (NH4), organic, (NO2) and (NO3) |
mg/kg |
| 00618 |
Nutrient |
Nitrate, water, filtered, milligrams per liter as nitrogen |
Agree |
|
|
|
|
Dissolved |
|
14797-55-8 |
Nitrate |
mg/l as N |
| 00620 |
Nutrient |
Nitrate, water, unfiltered, milligrams per liter as nitrogen |
Agree |
|
|
|
|
Total |
|
14797-55-8 |
Nitrate |
mg/l as N |
| 00621 |
Nutrient |
Nitrate, bed sediment, total, dry weight, milligrams per kilogram as nitrogen |
Agree |
|
|
Dry |
|
Bed Sediment |
|
14797-55-8 |
Nitrate |
mg/kg as N |
| 00630 |
Nutrient |
Nitrate plus nitrite, water, unfiltered, milligrams per liter as nitrogen |
Agree |
|
|
|
|
Total |
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/l as N |
| 00631 |
Nutrient |
Nitrate plus nitrite, water, filtered, milligrams per liter as nitrogen |
Agree |
|
|
|
|
Dissolved |
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/l as N |
| 00633 |
Nutrient |
Nitrate plus nitrite, bed sediment, total, dry weight, milligrams per kilogram as nitrogen |
Agree |
|
|
Dry |
|
Bed Sediment |
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/kg as N |
| 01397 |
Nutrient |
Total nitrogen [nitrate + nitrite + ammonia + organic-N], bed sediment, total digestion, dry weight, percent |
USGS use and no use by EPA |
|
|
Dry |
|
Bed Sediment |
|
|
Nitrogen, mixed forms (NH3), (NH4), organic, (NO2) and (NO3) |
% |
| 01425 |
Nutrient |
Total nitrogen [nitrate + nitrite + ammonia + organic-N], soil, total digestion, milligrams per liter |
USGS use and no use by EPA |
|
|
|
|
Total |
|
|
Nitrogen, mixed forms (NH3), (NH4), organic, (NO2) and (NO3) |
mg/l |
| 01465 |
Nutrient |
Total nitrogen [nitrate + nitrite + ammonia + organic-N], biota, tissue, total, milligrams per liter as nitrogen |
Not checked |
|
|
Dry |
|
Total |
|
|
Nitrogen, mixed forms (NH3), (NH4), organic, (NO2) and (NO3) |
mg/l |
| 01470 |
Nutrient |
Total nitrogen [nitrate + nitrite + ammonia + organic-N], suspended sediment, total, dry weight, percent |
Not checked |
|
|
Dry |
|
Total |
|
|
Nitrogen, mixed forms (NH3), (NH4), organic, (NO2) and (NO3) |
% |
| 01471 |
Nutrient |
Total nitrogen [nitrate + nitrite + ammonia + organic-N], soil, total, dry weight, percent |
Not checked |
|
|
Dry |
|
Total |
|
|
Nitrogen, mixed forms (NH3), (NH4), organic, (NO2) and (NO3) |
% |
| 01472 |
Nutrient |
Total nitrogen [nitrate + nitrite + ammonia + organic-N], biota, tissue, total, dry weight, percent |
Not checked |
|
|
Dry |
|
Total |
|
|
Nitrogen, mixed forms (NH3), (NH4), organic, (NO2) and (NO3) |
% |
| 03953 |
Nutrient |
Total nitrogen [nitrate + nitrite + ammonia + organic-N], bed sediment smaller than 62.5 microns, wet sieved, laboratory, total digestion, dry weight, percent |
Not checked |
|
|
Dry |
< 0.0625 |
Bed Sediment |
|
|
Nitrogen, mixed forms (NH3), (NH4), organic, (NO2) and (NO3) |
% |
| 30387 |
Nutrient |
Nitrate, soil, recoverable, dry weight, milligrams per kilogram as nitrogen |
Not checked |
|
|
Dry |
|
Recoverable |
|
14797-55-8 |
|
mg/kg as N |
| 30388 |
Nutrient |
Nitrate plus nitrite, soil, recoverable, dry weight, milligrams per kilogram as nitrogen |
Not checked |
|
|
Dry |
|
Recoverable |
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/kg as N |
| 31717 |
Microbiological |
Nitrate-reducing bacteria, borehole cuttings, wet sieved, wet weight, most probable number per gram |
Not checked |
|
|
Wet |
|
Total |
|
|
|
MPN/g |
| 32325 |
Information |
Dark measurement spectral average, water, in situ, ultraviolet nitrate analyzer, raw counts |
Not checked |
|
|
|
|
Total |
|
|
|
count |
| 32326 |
Information |
Light measurement spectral average, water, in situ, ultraviolet nitrate analyzer, raw counts |
Not checked |
|
|
|
|
Total |
|
|
|
count |
| 35052 |
Nutrient |
Total nitrogen [nitrate + nitrite + ammonia + organic-N], bed sediment smaller than 62.5 micrometers, dry sieved, laboratory, total, dry weight, percent |
USGS use and no use by EPA |
|
|
Dry |
< 62.5 microns |
Bed Sediment |
|
|
Nitrogen, mixed forms (NH3), (NH4), organic, (NO2) and (NO3) |
% |
| 51185 |
Nutrient |
Nitrate, water, unfiltered, field, milligrams per liter |
Not checked |
|
|
|
|
Total |
|
14797-55-8 |
Nitrate |
mg/l |
| 51290 |
Nutrient |
Nitrate, water, in situ, milligrams per liter as nitrate |
Not checked |
|
|
|
|
Total |
|
14797-55-8 |
|
mg/l |
| 52140 |
Nutrient |
Nitrate plus nitrite, bed sediment <63 microns, dry weight, milligrams per kilogram as nitrogen |
Not checked |
|
|
Dry |
< 0.063 |
Bed Sediment |
|
|
|
mg/kg as N |
| 52152 |
Nutrient |
Nitrate, bed sediment, total, dry weight, milligrams per kilogram as nitrate |
Not checked |
|
|
Dry |
|
Bed Sediment |
|
14797-55-8 |
|
mg/kg |
| 62225 |
Organics, Other |
Pentaerythritol tetranitrate, water, unfiltered, recoverable, micrograms per liter |
USGS use and no use by EPA |
|
|
|
|
Recoverable |
|
78-11-5 |
Pentaerythritol tetranitrate |
ug/l |
| 62286 |
Organics, Other |
Pentaerythritol tetranitrate, soil, recoverable, dry weight, micrograms per kilogram |
USGS use and no use by EPA |
|
|
Dry |
|
Recoverable |
|
78-11-5 |
Pentaerythritol tetranitrate |
ug/kg |
| 62464 |
Nutrient |
Total nitrogen [nitrate + nitrite + ammonia + organic-N], bed sediment, dry weight, percent |
USGS use and no use by EPA |
|
|
Dry |
|
Bed Sediment |
|
|
Nitrogen, mixed forms (NH3), (NH4), organic, (NO2) and (NO3) |
% by wt |
| 62854 |
Nutrient |
Total nitrogen [nitrate + nitrite + ammonia + organic-N], water, filtered, analytically determined, milligrams per liter |
USGS use and no use by EPA |
|
|
|
|
Dissolved |
|
|
Nitrogen, mixed forms (NH3), (NH4), organic, (NO2) and (NO3) |
mg/l |
| 62855 |
Nutrient |
Total nitrogen [nitrate + nitrite + ammonia + organic-N], water, unfiltered, analytically determined, milligrams per liter |
USGS use and no use by EPA |
|
|
|
|
Total |
|
|
Nitrogen, mixed forms (NH3), (NH4), organic, (NO2) and (NO3) |
mg/l |
| 62950 |
Nutrient |
Total nitrogen [nitrate + nitrite + ammonia + organic-N], solids, dry weight, milligrams per kilogram as nitrogen |
USGS use and no use by EPA |
|
|
Dry |
|
Total |
|
|
Nitrogen, mixed forms (NH3), (NH4), organic, (NO2) and (NO3) |
mg/kg |
| 62953 |
Nutrient |
Nitrate, solids, dry weight, milligrams per kilogram as nitrogen |
USGS use and no use by EPA |
|
|
Dry |
|
|
|
14797-55-8 |
Nitrate |
mg/kg as N |
| 63036 |
Stable Isotopes |
delta nitrogen-15/nitrogen-14 of nitrate, solids, per mil |
USGS use and no use by EPA |
|
|
|
|
|
|
|
Nitrogen-15/14 ratio |
per mil |
| 63040 |
Stable Isotopes |
delta oxygen-18/oxygen-16 of nitrate, solids, per mil |
USGS use and no use by EPA |
|
|
|
|
|
|
14797-71-8 |
Oxygen-18/Oxygen-16 ratio |
per mil |
| 63041 |
Stable Isotopes |
delta oxygen-18/oxygen-16 of nitrate, water, filtered, per mil |
USGS use and no use by EPA |
|
|
|
|
Dissolved |
|
14797-71-8 |
Oxygen-18/Oxygen-16 ratio |
per mil |
| 64832 |
Nutrient |
Nitrate, water, filtered, micrograms per liter as nitrogen |
USGS use and no use by EPA |
|
|
|
|
Dissolved |
|
14797-55-8 |
Nitrate |
ug/L as N |
| 64834 |
Nutrient |
Total nitrogen [nitrate + nitrite + ammonia + organic-N], solids, dry weight, mass fraction, percent |
USGS use and no use by EPA |
|
|
Dry |
|
Total |
|
|
Nitrogen, mixed forms (NH3), (NH4), organic, (NO2) and (NO3) |
% |
| 66672 |
Organics, Other |
Pentaerythritol tetranitrate, bed sediment smaller than 2 millimeters, wet sieved (native water), field, recoverable, dry weight, micrograms per kilogram |
USGS use and no use by EPA |
|
|
Dry |
< 2 mm |
Bed Sediment |
|
78-11-5 |
Pentaerythritol tetranitrate |
ug/kg |
| 70378 |
Nutrient |
Nitrate plus nitrite yield, computed by regression equation, pounds per day per square mile |
Not checked |
|
|
|
|
|
|
|
Inorganic nitrogen (nitrate and nitrite) |
lb/day/mi2 |
| 70379 |
Nutrient |
Nitrate plus nitrite yield, computed by regression equation, kilograms per day per square kilometer |
Not checked |
|
|
|
|
|
|
|
Inorganic nitrogen (nitrate and nitrite) |
kg/day/km2 |
| 70380 |
Nutrient |
Total nitrogen [nitrate + nitrite + ammonia + organic-N] yield, computed by regression equation, pounds per day per square mile |
Not checked |
|
|
|
|
|
|
|
Nitrogen, mixed forms (NH3), (NH4), organic, (NO2) and (NO3) |
lb/day/mi2 |
| 70381 |
Nutrient |
Total nitrogen [nitrate + nitrite + ammonia + organic-N] yield, computed by regression equation, kilograms per day per square kilometer |
Not checked |
|
|
|
|
|
|
|
Nitrogen, mixed forms (NH3), (NH4), organic, (NO2) and (NO3) |
kg/day/km2 |
| 71850 |
Nutrient |
Nitrate, water, unfiltered, milligrams per liter as nitrate |
Agree |
|
|
|
|
Total |
|
14797-55-8 |
Nitrate |
mg/l asNO3 |
| 71851 |
Nutrient |
Nitrate, water, filtered, milligrams per liter as nitrate |
Agree |
|
|
|
|
Dissolved |
|
14797-55-8 |
Nitrate |
mg/l asNO3 |
| 71887 |
Nutrient |
Total nitrogen [nitrate + nitrite + ammonia + organic-N], water, unfiltered, milligrams per liter as nitrate |
Not checked |
|
|
|
|
Total |
|
|
Nitrogen, mixed forms (NH3), (NH4), organic, (NO2) and (NO3) |
mg/l NO3 |
| 72260 |
Information |
Fitting parameter root-mean-square error (RMSE), water, in situ, Ultraviolet Nitrate Analyzer |
Not checked |
|
|
|
|
Total |
|
|
|
None |
| 72261 |
Information |
Standard deviation, nitrate + nitrite, water, in situ, burst sample, Ultraviolet Nitrate Analyzer, mg/L as N |
Not checked |
|
|
|
|
Total |
|
|
|
mg/l as N |
| 72262 |
Information |
Coefficient of variation, nitrate + nitrite, water, in situ, burst sample, Ultraviolet Nitrate Analyzer, percent |
Not checked |
|
|
|
|
Total |
|
|
|
% |
| 80111 |
Nutrient |
Total nitrogen [nitrate + nitrite + ammonia + organic-N], solids, dry weight, milligrams per kilogram as nitrogen |
Agree |
|
|
Dry |
|
Total |
|
|
Nitrogen, mixed forms (NH3), (NH4), organic, (NO2) and (NO3) |
mg/kg |
| 82458 |
Nutrient |
Nitrate plus nitrite, soluble, dry atmospheric deposition, milligrams per kilogram as nitrogen |
Agree |
|
|
|
|
|
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/kg as N |
| 82462 |
Nutrient |
Nitrate, soluble, dry atmospheric deposition, milligrams per kilogram as nitrogen |
Agree |
|
|
|
|
|
|
14797-55-8 |
Nitrate |
mg/kg as N |
| 82688 |
Stable Isotopes |
delta nitrogen-15/nitrogen-14 of nitrate, soil, per mil |
Agree |
|
|
|
|
|
|
|
Nitrogen-15/14 ratio |
per mil |
| 82690 |
Stable Isotopes |
delta nitrogen-15/nitrogen-14 of nitrate, water, filtered, per mil |
Agree |
|
|
|
|
Dissolved |
|
|
Nitrogen-15/14 ratio |
per mil |
| 82793 |
Stable Isotopes |
delta oxygen-17/oxygen-16 of nitrate, water, filtered, relative to Vienna Standard Mean Ocean Water (VSMOW), per mil |
Not checked |
Mean |
|
|
|
Dissolved |
|
|
|
per mil |
| 83068 |
Nutrient |
Nitrate, wet atmospheric deposition, filtered, milligrams per liter as nitrogen |
Agree |
|
|
|
|
Dissolved |
|
14797-55-8 |
Nitrate |
mg/l as N |
| 83069 |
Nutrient |
Nitrate, wet atmospheric deposition, filtered, milligrams per square meter as nitrogen |
Agree |
|
|
|
|
Dissolved |
|
14797-55-8 |
Nitrate |
mg/m2 as N |
| 83070 |
Nutrient |
Nitrate, wet atmospheric deposition, filtered, microequivalents per liter |
Agree |
|
|
|
|
Dissolved |
|
14797-55-8 |
Nitrate |
ueq/L |
| 83071 |
Nutrient |
Nitrate, wet atmospheric deposition, filtered, milligrams per liter as nitrate |
Agree |
|
|
|
|
Dissolved |
|
14797-55-8 |
Nitrate |
mg/l |
| 83074 |
Nutrient |
Nitrate, wet atmospheric deposition, unfiltered, milligrams per liter as nitrogen |
Agree |
|
|
|
|
Total |
|
14797-55-8 |
Nitrate |
mg/l as N |
| 83075 |
Nutrient |
Nitrate, wet atmospheric deposition, unfiltered, milligrams per square meter as nitrogen |
Agree |
|
|
|
|
Total |
|
14797-55-8 |
Nitrate |
mg/m2 as N |
| 83076 |
Nutrient |
Nitrate, wet atmospheric deposition, unfiltered, microequivalents per liter |
Agree |
|
|
|
|
Total |
|
14797-55-8 |
Nitrate |
ueq/L |
| 83080 |
Nutrient |
Nitrate plus nitrite, wet atmospheric deposition, filtered, milligrams per liter as nitrogen |
Agree |
|
|
|
|
Dissolved |
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/l as N |
| 83081 |
Nutrient |
Nitrate plus nitrite, wet atmospheric deposition, filtered, milligrams per square meter as nitrogen |
Agree |
|
|
|
|
Dissolved |
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/m2 as N |
| 83082 |
Nutrient |
Nitrate plus nitrite, wet atmospheric deposition, filtered, microequivalents per liter |
Agree |
|
|
|
|
Dissolved |
|
|
Inorganic nitrogen (nitrate and nitrite) |
ueq/L |
| 83083 |
Nutrient |
Nitrate plus nitrite, wet atmospheric deposition, filtered, milligrams per liter as nitrate |
Agree |
|
|
|
|
Dissolved |
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/l NO3 |
| 83084 |
Nutrient |
Nitrate plus nitrite, wet atmospheric deposition, filtered, milligrams per square meter as nitrate |
Agree |
|
|
|
|
Dissolved |
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/m2 NO3 |
| 83086 |
Nutrient |
Nitrate plus nitrite, wet atmospheric deposition, unfiltered, milligrams per liter as nitrogen |
Agree |
|
|
|
|
Total |
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/l as N |
| 83087 |
Nutrient |
Nitrate plus nitrite, wet atmospheric deposition, unfiltered, milligrams per square meter as nitrogen |
Agree |
|
|
|
|
Total |
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/m2 as N |
| 83088 |
Nutrient |
Nitrate plus nitrite, wet atmospheric deposition, unfiltered, microequivalents per liter |
Agree |
|
|
|
|
Total |
|
|
Inorganic nitrogen (nitrate and nitrite) |
ueq/L |
| 83089 |
Nutrient |
Nitrate plus nitrite, wet atmospheric deposition, unfiltered, milligrams per liter as nitrate |
Agree |
|
|
|
|
Total |
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/l NO3 |
| 83090 |
Nutrient |
Nitrate plus nitrite, wet atmospheric deposition, unfiltered, milligrams per square meter as nitrate |
Agree |
|
|
|
|
Total |
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/m2 NO3 |
| 83350 |
Nutrient |
Nitrate, bulk atmospheric deposition, filtered, milligrams per liter as nitrogen |
Agree |
|
|
|
|
Dissolved |
|
14797-55-8 |
Nitrate |
mg/l as N |
| 83351 |
Nutrient |
Nitrate, bulk atmospheric deposition, filtered, milligrams per square meter as nitrogen |
Agree |
|
|
|
|
Dissolved |
|
14797-55-8 |
Nitrate |
mg/m2 as N |
| 83352 |
Nutrient |
Nitrate, bulk atmospheric deposition, filtered, microequivalents per liter |
Agree |
|
|
|
|
Dissolved |
|
14797-55-8 |
Nitrate |
ueq/L |
| 83353 |
Nutrient |
Nitrate, bulk atmospheric deposition, filtered, milligrams per liter as nitrate |
Agree |
|
|
|
|
Dissolved |
|
14797-55-8 |
Nitrate |
mg/l |
| 83356 |
Nutrient |
Nitrate, bulk atmospheric deposition, unfiltered, milligrams per liter as nitrogen |
Agree |
|
|
|
|
Total |
|
14797-55-8 |
Nitrate |
mg/l as N |
| 83357 |
Nutrient |
Nitrate, bulk atmospheric deposition, unfiltered, milligrams per square meter as nitrogen |
Agree |
|
|
|
|
Total |
|
14797-55-8 |
Nitrate |
mg/m2 as N |
| 83358 |
Nutrient |
Nitrate, bulk atmospheric deposition, unfiltered, microequivalents per liter |
Agree |
|
|
|
|
Total |
|
14797-55-8 |
Nitrate |
ueq/L |
| 83362 |
Nutrient |
Nitrate plus nitrite, bulk atmospheric deposition, filtered, milligrams per liter as nitrogen |
Agree |
|
|
|
|
Dissolved |
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/l as N |
| 83363 |
Nutrient |
Nitrate plus nitrite, bulk atmospheric deposition, filtered, milligrams per square meter as nitrogen |
Agree |
|
|
|
|
Dissolved |
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/m2 as N |
| 83364 |
Nutrient |
Nitrate plus nitrite, bulk atmospheric deposition, filtered, microequivalents per liter |
Agree |
|
|
|
|
Dissolved |
|
|
Inorganic nitrogen (nitrate and nitrite) |
ueq/L |
| 83365 |
Nutrient |
Nitrate plus nitrite, bulk atmospheric deposition, filtered, milligrams per liter as nitrate |
Agree |
|
|
|
|
Dissolved |
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/l NO3 |
| 83366 |
Nutrient |
Nitrate plus nitrite, bulk atmospheric deposition, filtered, milligrams per square meter as nitrate |
Agree |
|
|
|
|
Dissolved |
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/m2 NO3 |
| 83368 |
Nutrient |
Nitrate plus nitrite, bulk atmospheric deposition, unfiltered, milligrams per liter as nitrogen |
Agree |
|
|
|
|
Total |
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/l as N |
| 83369 |
Nutrient |
Nitrate plus nitrite, bulk atmospheric deposition, unfiltered, milligrams per square meter as nitrogen |
Agree |
|
|
|
|
Total |
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/m2 as N |
| 83370 |
Nutrient |
Nitrate plus nitrite, bulk atmospheric deposition, unfiltered, microequivalents per liter |
Agree |
|
|
|
|
Total |
|
|
Inorganic nitrogen (nitrate and nitrite) |
ueq/L |
| 83371 |
Nutrient |
Nitrate plus nitrite, bulk atmospheric deposition, unfiltered, milligrams per liter as nitrate |
Agree |
|
|
|
|
Total |
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/l NO3 |
| 83372 |
Nutrient |
Nitrate plus nitrite, bulk atmospheric deposition, unfiltered, milligrams per square meter as nitrate |
Agree |
|
|
|
|
Total |
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/m2 NO3 |
| 83554 |
Nutrient |
Nitrate plus nitrite, water, total, short tons per day as nitrogen |
Not checked |
|
|
|
|
Total |
|
|
|
ton/d as N |
| 83561 |
Nutrient |
Nitrate plus nitrite load, water, in situ, milligrams per second as nitrogen |
Not checked |
|
|
|
|
Total |
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/s as N |
| 90869 |
Nutrient |
Nitrate plus nitrite, water, filtered, computed by regression equation, milligrams per liter as nitrogen |
Not checked |
|
|
|
|
Dissolved |
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/l as N |
| 91003 |
Nutrient |
Nitrate, water, filtered, micrograms per liter as nitrate |
USGS use and no use by EPA |
|
|
|
|
Dissolved |
|
14797-55-8 |
Nitrate |
ug/l |
| 91006 |
Nutrient |
Nitrate, water, dissolved, short tons of nitrate per day |
USGS use and no use by EPA |
|
|
|
|
Dissolved |
|
14797-55-8 |
Nitrate |
tons/day |
| 91049 |
Nutrient |
Nitrate plus nitrite, water, unfiltered, pounds of nitrogen per day |
USGS use and no use by EPA |
|
|
|
|
Total |
|
|
Inorganic nitrogen (nitrate and nitrite) |
lb/d as N |
| 91058 |
Nutrient |
Total nitrogen [nitrate + nitrite + ammonia + organic-N], water, unfiltered, pounds of nitrogen per day |
USGS use and no use by EPA |
|
|
|
|
Total |
|
|
Nitrogen, mixed forms (NH3), (NH4), organic, (NO2) and (NO3) |
lb/day |
| 91061 |
Nutrient |
Nitrate plus nitrite, water, dissolved, pounds of nitrogen per day |
USGS use and no use by EPA |
|
|
|
|
Dissolved |
|
|
Inorganic nitrogen (nitrate and nitrite) |
lb/d as N |
| 99121 |
Nutrient |
Nitrate, water, filtered, field, milligrams per liter as nitrogen |
USGS use and no use by EPA |
|
|
|
|
Dissolved |
|
14797-55-8 |
Nitrate |
mg/l as N |
| 99124 |
Nutrient |
Nitrate, water, unfiltered, field, milligrams per liter as nitrogen |
USGS use and no use by EPA |
|
|
|
|
Total |
|
14797-55-8 |
Nitrate |
mg/l as N |
| 99130 |
Nutrient |
Nitrate, water, unfiltered, field, micromoles per liter |
USGS use and no use by EPA |
|
|
|
|
Total |
|
14797-55-8 |
Nitrate |
umol/L |
| 99133 |
Nutrient |
Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen |
Not checked |
|
|
|
|
|
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/l as N |
| 99136 |
Nutrient |
Nitrate, water, in situ, micromoles per liter |
Not checked |
|
|
|
|
Total |
|
14797-55-8 |
Nitrate |
umol/L |
| 99137 |
Nutrient |
Nitrate, water, in situ, milligrams per liter as nitrogen |
Not checked |
|
|
|
|
Total |
|
14797-55-8 |
Nitrate |
mg/l as N |
| 99139 |
Nutrient |
Nitrate (plus nitrite)/orthophosphate, mole ratio |
Not checked |
|
|
|
|
Total |
|
|
|
None |
| 99410 |
Nutrient |
Total nitrogen [nitrate + nitrite + ammonia + organic-N], water, filtered, estimated by regression equation, milligrams per liter as nitrogen |
USGS use and no use by EPA |
|
|
|
|
Dissolved |
|
|
Nitrogen, mixed forms (NH3), (NH4), organic, (NO2) and (NO3) |
mg/l as N |
| 99411 |
Nutrient |
Nitrate, water, filtered, estimated by regression equation, milligrams per liter as nitrogen |
USGS use and no use by EPA |
|
|
|
|
Dissolved |
|
14797-55-8 |
Nitrate |
mg/l as N |
| 99435 |
Nutrient |
Total nitrogen [nitrate + nitrite + ammonia + organic-N], water, unfiltered, estimated by regression equation, milligrams per liter as nitrogen |
Not checked |
|
|
|
|
Total |
|
|
Nitrogen, mixed forms (NH3), (NH4), organic, (NO2) and (NO3) |
mg/l as N |
| 99889 |
Nutrient |
Nitrate plus nitrite, water, filtered, field, milligrams per liter as nitrogen |
USGS use and no use by EPA |
|
|
|
|
Dissolved |
|
|
Inorganic nitrogen (nitrate and nitrite) |
mg/l as N |
