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Loudonville Air Monitoring Site Trends (1987-2007)

Loudonville Acid Deposition Data, 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 30.70 4.13 4.40 2.88 0.07
1988 30.36 4.22 3.02 1.98 0.30 23.28 15.28 2.30
1989 39.83 4.15 3.04 1.93 0.46 30.70 19.48 4.70
1990 41.05 4.21 2.24 1.53 0.23 23.30 15.92 2.43
1991 30.29 4.13 2.84 1.92 0.33 21.85 14.78 2.51
1992 26.74 4.19 2.79 2.10 0.37 18.98 14.24 2.52
1993 30.98 4.31 2.70 1.67 0.69 21.23 13.16 5.40
1994 32.47 4.27 3.08 2.08 0.68 25.42 17.16 5.58
1995 31.15 4.43 2.01 1.81 0.50 15.90 14.35 3.99
1996 46.11 4.35 2.03 1.76 0.45 23.71 20.58 5.30
1997 29.64 4.31 2.23 2.07 0.49 16.75 15.55 3.71
1998 29.69 4.36 2.57 2.00 0.42 19.41 15.05 3.14
1999 30.78 4.44 1.54 1.41 0.31 12.02 11.05 2.46
2000 43.33 4.40 1.62 1.55 0.35 17.83 17.03 3.84
2001 29.16 4.40 1.68 1.62 0.36 12.47 11.98 2.66
2002 35.66 4.44 1.81 1.52 0.34 16.38 13.81 3.12
2003 40.84 4.59 1.25 1.17 0.33 12.57 11.82 3.51
2004 42.35 4.61 1.41 1.32 0.40 15.19 14.18 4.31
2005 39.46 4.64 0.98 1.42 0.49 9.72 14.32 4.95
2006 41.29 4.65 1.32 0.84 0.28 14.08 8.92 2.96
2007 42.98 4.58 1.60 1.09 0.34 17.97 12.04 3.83

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.

pH and ion concentration at Loudonville, 1987-2007

precipitation and ion deposition at Loudonville, 1987-2007