Measurement | Region | Annual Average, 2000–2002 | Annual Average, 2018–2020 | Percent Change |
---|---|---|---|---|
Dry Nitrogen Deposition (kg-N/ha) |
Mid-Atlantic | 8.4 | 4.7 | -44 |
Midwest | 6.3 | 4.4 | -31 | |
North Central | 4.1 | 3.7 | -9 | |
Northeast | 5.5 | 2.9 | -47 | |
Pacific | 2.7 | 2.4 | -13 | |
Rocky Mountain | 1.5 | 1.3 | -12 | |
South Central | 4.3 | 3.3 | -24 | |
Southeast | 6.8 | 4.5 | -34 | |
Wet Nitrogen Deposition (kg-N/ha) |
Mid-Atlantic | 5.0 | 4.0 | -19 |
Midwest | 5.9 | 5.4 | -8 | |
North Central | 4.4 | 5.2 | 17 | |
Northeast | 4.9 | 3.3 | -32 | |
Pacific | 1.1 | 0.9 | -15 | |
Rocky Mountain | 1.5 | 1.4 | -3 | |
South Central | 3.5 | 3.8 | 9 | |
Southeast | 4.0 | 3.7 | -8 | |
Total Deposition of Nitrogen (kg-N/ha) |
Mid-Atlantic | 13.4 | 8.7 | -35 |
Midwest | 12.2 | 9.8 | -20 | |
North Central | 8.5 | 8.9 | 4 | |
Northeast | 10.4 | 6.3 | -40 | |
Pacific | 3.8 | 3.3 | -14 | |
Rocky Mountain | 3.0 | 2.8 | -8 | |
South Central | 7.8 | 7.1 | -9 | |
Southeast | 10.8 | 8.2 | -24 | |
Total Deposition of Oxidized Nitrogen (kg-N/ha) |
Mid-Atlantic | 10.3 | 4.3 | -59 |
Midwest | 8.0 | 3.9 | -51 | |
North Central | 4.1 | 2.8 | -32 | |
Northeast | 7.7 | 3.1 | -60 | |
Pacific | 2.4 | 1.4 | -40 | |
Rocky Mountain | 1.9 | 1.3 | -34 | |
South Central | 5.0 | 3.2 | -36 | |
Southeast | 7.7 | 3.6 | -53 | |
Total Deposition of Reduced Nitrogen (kg-N/ha) |
Mid-Atlantic | 3.0 | 4.5 | 48 |
Midwest | 4.3 | 5.9 | 38 | |
North Central | 4.4 | 6.1 | 38 | |
Northeast | 2.7 | 3.2 | 18 | |
Pacific | 1.4 | 1.8 | 31 | |
Rocky Mountain | 1.1 | 1.5 | 41 | |
South Central | 2.8 | 3.9 | 37 | |
Southeast | 3.1 | 4.6 | 48 | |
Dry Sulfur Deposition (kg-S/ha) |
Mid-Atlantic | 10 | 0.8 | -92 |
Midwest | 6.1 | 0.8 | -88 | |
North Central | 1.4 | 0.5 | -67 | |
Northeast | 3.8 | 0.4 | -88 | |
Pacific | 0.5 | 0.5 | -10 | |
Rocky Mountain | 0.4 | 0.3 | -34 | |
South Central | 2.5 | 1.0 | -62 | |
Southeast | 5.7 | 0.9 | -84 | |
Wet Sulfur Deposition (kg-S/ha) |
Mid-Atlantic | 6.1 | 1.6 | -74 |
Midwest | 5.3 | 1.7 | -67 | |
North Central | 2.2 | 1.2 | -45 | |
Northeast | 5.0 | 1.2 | -77 | |
Pacific | 0.5 | 0.3 | -46 | |
Rocky Mountain | 0.7 | 0.4 | -47 | |
South Central | 3.2 | 2.1 | -36 | |
Southeast | 4.8 | 2.0 | -59 | |
Total Deposition of Sulfur (kg-S/ha) |
Mid-Atlantic | 16.1 | 2.4 | -85 |
Midwest | 11.3 | 2.5 | -78 | |
North Central | 3.6 | 1.7 | -53 | |
Northeast | 8.8 | 1.6 | -82 | |
Pacific | 1.0 | 0.7 | -28 | |
Rocky Mountain | 1.1 | 0.6 | -43 | |
South Central | 5.7 | 3.0 | -47 | |
Southeast | 10.5 | 2.9 | -73 |