Loudonville Air Monitoring Site Trends (1987-2006)

Loudonville Acid Deposition Data, 1987 - 2006
Year	Precip. in	pH	[SO4] ippm	[NO3] ippm	[NH4] ippm	SO4 Dep. kg/ha	NO3 Dep. kg/ha	NH4 Dep. kg/ha
87	30.70	4.13	4.40	2.88	0.07
88	30.36	4.22	3.02	1.98	0.30	23.28	15.28	2.30
89	39.83	4.15	3.04	1.93	0.46	30.70	19.48	4.70
90	41.05	4.21	2.24	1.53	0.23	23.30	15.92	2.43
91	30.29	4.13	2.84	1.92	0.33	21.85	14.78	2.51
92	26.74	4.19	2.79	2.10	0.37	18.98	14.24	2.52
93	30.98	4.31	2.70	1.67	0.69	21.23	13.16	5.40
94	32.47	4.27	3.08	2.08	0.68	25.42	17.16	5.58
95	31.15	4.43	2.01	1.81	0.50	15.90	14.35	3.99
96	46.11	4.35	2.03	1.76	0.45	23.71	20.58	5.30
97	29.64	4.31	2.23	2.07	0.49	16.75	15.55	3.71
98	29.69	4.36	2.57	2.00	0.42	19.41	15.05	3.14
99	30.78	4.44	1.54	1.41	0.31	12.02	11.05	2.46
00	43.33	4.40	1.62	1.55	0.35	17.83	17.03	3.84
01	29.16	4.40	1.68	1.62	0.36	12.47	11.98	2.66
02	35.66	4.44	1.81	1.52	0.34	16.38	13.81	3.12
03	40.84	4.59	1.25	1.17	0.33	12.57	11.82	3.51
04	42.35	4.61	1.41	1.32	0.40	15.19	14.18	4.31
05	39.46	4.64	0.98	1.42	0.49	9.72	14.32	4.95
06	41.29	4.65	1.32	0.84	0.28	14.08	8.92	2.96

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.