Nitrate-nitrogen and total phosphorus river loads
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Abstract
Nitrate-nitrogen and total phosphorus loads from the major rivers draining Illinois were updated through the 2021 water year (Figure 3.1). Beginning with the 2023 biennial update to the Illinois NLRS, nutrient loads were estimated using data from the U.S. Geological Survey continuous monitoring stations rather than the original Illinois EPA monitoring stations. To maintain consistency with previous biennial report updates, the loads from the new sites were rescaled to match the original drainage areas (Table 3.1). As before, the statewide nutrient load was estimated by summing the loads of the eight major rivers adjusting for out-of-state contributions and unmonitored areas.
Suggested Citation
Hodson, T.O., 2023, Nitrate-nitrogen and total phosphorus river loads, 11 p.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | State or Local Government Series |
| Title | Nitrate-nitrogen and total phosphorus river loads |
| Year Published | 2023 |
| Language | English |
| Publisher | Illinois EPA |
| Contributing office(s) | Central Midwest Water Science Center |
| Description | 11 p. |
| Larger Work Type | Report |
| Larger Work Subtype | State or Local Government Series |
| Larger Work Title | Illinois nutrient loss reduction strategy 2023 biennial update |
| First page | 25 |
| Last page | 35 |
| Country | United States |
| State | Illinois |