Wanakena Ranger School Air Monitoring Site Trends (1987-2006)

Wanakena 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	33.83	4.23	2.60	2.70	0.26
88	40.36	4.44	2.10	1.28	0.22	21.50	13.09	2.29
89	51.71	4.40	1.92	1.42	0.31	25.27	18.64	4.05
90	48.63	4.34	1.96	1.43	0.34	24.16	17.69	4.14
91	38.51	4.32	1.99	1.45	0.34	19.49	14.19	3.32
92	41.81	4.37	1.79	1.36	0.29	19.01	14.47	3.13
93	43.68	4.34	1.98	1.45	0.33	21.97	16.07	3.63
94	37.40	4.37	1.92	1.48	0.32	18.23	14.05	3.06
95	39.73	4.40	1.63	1.62	0.35	16.42	16.30	3.52
96	46.12	4.45	1.28	1.17	0.30	16.52	14.05	3.56
97	46.05	4.32	1.80	1.85	0.37	21.01	21.64	4.31
98	44.25	4.42	1.74	1.51	0.39	20.12	17.46	4.51
99	38.75	4.45	1.40	1.60	0.28	13.82	15.72	2.78
00	38.75	4.48	1.18	1.65	0.33	15.09	21.10	4.25
01	45.03	4.51	1.29	1.37	0.33	14.75	15.67	3.77
02	39.15	4.53	1.45	1.68	0.38	14.30	16.84	3.79
03	41.93	4.66	0.92	1.12	0.26	9.49	11.93	2.78
04	40.98	4.57	1.56	1.19	0.28	16.27	12.45	2.91
05	50.28	4.65	1.07	1.32	0.36	13.84	18.10	4.77
06	44.29	4.62	1.39	1.07	0.26	16.35	12.16	2.92

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.