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Elmira Air Monitoring Site Trends (1987-2007)

Elmira 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 31.84 4.25 4.52 2.84 0.10
1988 30.22 4.34 3.13 1.75 0.40 24.02 13.43 3.09
1989 37.98 4.24 2.40 1.52 0.29 23.17 14.69 2.81
1990 38.89 4.23 2.69 1.45 0.36 26.62 14.31 3.56
1991 25.86 4.18 3.18 1.86 0.45 20.90 12.24 2.98
1992 38.97 4.20 2.75 1.68 0.34 27.26 26.67 3.37
1993 35.29 4.19 2.92 1.59 0.37 26.18 14.24 3.31
1994 34.02 4.31 2.57 1.56 0.30 22.18 13.50 2.62
1995 28.13 4.46 2.01 1.53 0.61 14.34 10.91 4.35
1996 45.64 4.33 2.27 2.02 0.45
1997 22.09 4.28 2.45 1.86 0.52
1998 29.78 4.31 2.30 1.74 0.58 17.42 13.17 4.36
1999 24.22 4.32 2.07 1.6 0.4 12.72 9.85 2.45
2000 31.15 4.29 2.19 1.93 0.44 17.31 15.28 3.47
2001 25.66 4.37 2.03 1.81 0.54 13.22 11.78 3.49
2002 34.24 4.48 1.73 1.51 0.36 15.01 13.17 3.09
2003 39.86 4.46 1.76 1.66 0.41 17.90 16.56 4.06
2004 40.41 4.48 2.26 1.51 0.40 23.14 15.50 4.04
2005 35.75 4.46 1.75 2.06 0.47 16.33 19.47 4.53
2006 36.10 4.45 1.95 1.46 0.37 17.67 13.13 3.36
2007 30.86 4.51 2.07 1.26 0.35 16.17 9.85 2.78

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/Ion Concentration (Elmira, 1987-2007)

Precipitation / Ion Deposition (Elmira, 1987-2007)