Eisenhower Park Air Monitoring Site Trends (1987-2007)
| Year | Precip. in |
pH | [SO4] ippm |
[NO3] ippm |
[NH4] ippm |
SO4 Dep. kg/ha |
NO3 Dep. kg/ha |
NH4 Dep. kg/ha |
|---|---|---|---|---|---|---|---|---|
| 1987 | 36.70 | 4.20 | 3.97 | 2.67 | 0.21 | 37.00 | 24.85 | |
| 1988 | 50.04 | 4.38 | 2.39 | 1.42 | 0.29 | |||
| 1989 | 66.80 | 4.25 | 2.27 | 1.25 | 0.26 | |||
| 1990 | 55.50 | 4.17 | 3.10 | 2.11 | 0.43 | 43.72 | 29.81 | 6.03 |
| 1991 | 37.50 | 4.26 | 2.40 | 1.67 | 0.37 | 22.88 | 15.89 | 3.52 |
| 1992 | 40.37 | 4.28 | 2.58 | 1.68 | 0.38 | 26.46 | 17.25 | 3.88 |
| 1993 | 34.48 | 4.21 | 2.67 | 1.57 | 0.37 | 23.41 | 13.79 | 3.21 |
| 1994 | 30.48 | 4.46 | 2.10 | 1.37 | 0.43 | 16.29 | 10.58 | 3.36 |
| 1995 | 35.82 | 4.55 | 1.50 | 1.30 | 0.36 | 13.63 | 11.80 | 3.27 |
| 1996 | 46.48 | 4.47 | 1.78 | 1.17 | 0.32 | 21.21 | 13.85 | 3.82 |
| 1997 | 40.01 | 4.36 | 1.89 | 1.37 | 0.34 | 19.18 | 13.92 | 3.42 |
| 1998 | 33.93 | 4.46 | 1.68 | 1.20 | 0.32 | 15.84 | 11.33 | 2.97 |
| 1999 | 34.35 | 4.52 | 1.41 | 0.91 | 0.24 | 12.26 | 7.97 | 2.08 |
| 2000 | 42.98 | 4.47 | 1.62 | 1.41 | 0.36 | 17.65 | 15.39 | 3.96 |
| 2001 | 33.89 | 4.40 | 1.64 | 1.61 | 0.34 | 14.10 | 13.87 | 2.96 |
| 2002 | 46.63 | 4.56 | 1.38 | 1.14 | 0.25 | 16.35 | 13.44 | 2.98 |
| 2003 | 50.06 | 4.55 | 1.25 | 1.08 | 0.26 | 15.72 | 13.74 | 3.28 |
| 2004 | 42.77 | 4.51 | 1.53 | 1.29 | 0.27 | 16.47 | 13.98 | 2.93 |
| 2005 | 49.63 | 4.63 | 1.30 | 1.05 | 0.27 | 16.45 | 13.30 | 3.41 |
| 2006 | 60.04 | 4.57 | 1.67 | 1.11 | 0.33 | 25.49 | 16.92 | 5.09 |
| 2007 | 53.23 | 4.55 | 1.80 | 1.00 | 0.28 | 24.20 | 13.51 | 3.77 |
Blanks indicate that the rainfall criteria were not satisfied. That is, analysis of at least 75% of the annual and 50% of the quarterly precipitation.
