Table 3 - Ambient Air Quality Data
Maine Sulfur Dioxide

Map of annual average SO2 concentration

Annual average sulfur dioxide (SO₂) concentration in ppm for sites in Connecticut. The annual average SO₂ standard is 0.03 ppm.

NAAQS = 0.14 ppm

Graph of second maximum 24 hour value vs. year

NAAQS = 0.03 ppm

Graph of annual arithmetic mean vs. year

Units: 007 ppm

									MAX 24-HR			MAX 3-HR
Site ID	P O C	M T	City	County	Address	YR	REP ORG	# OBS	1ST	2ND	OBS > ST	1ST	2ND	OBS > ST	MAX 1ST	1-HR 2ND	ARITH MEAN	METH
23-001-0011	1	1	Lewiston	Androscoggi	Country Kitchen Lot, Canal St.	97	001	8307	0.018	0.017	0	0.031	0.03	0	0.051	0.049	0.004	60
23-001-3003	1	3	Lewiston	Androscoggi	Columbia Street	97	001	1401	0.015	0.013	0	0.042	0.031	0	0.052	0.038	0.007?	60
23-003-0009	1	2	Madawaska	Aroostook	Portable Shelter - Albert St.	97	113	8321	0.025	0.021	0	0.063	0.055	0	0.167	0.135	0.005	60
23-003-0012	1	4	Madawaska	Aroostook	US Post Office, 430 East Main St.	97	113	8320	0.032	0.021	0	0.075	0.064	0	0.125	0.096	0.004	60
23-003-1003	1	4	Madawaska	Aroostook	High School - St. Thomas St.	97	113	8321	0.018	0.016	0	0.069	0.04	0	0.111	0.087	0.003	60
23-003-1013	1	3	Houlton	Aroostook	Fire Station	97	001	8640	0.017	0.015	0	0.032	0.03	0	0.042	0.04	0.003	60
23-005-0014	1	1	Portland	Cumberland	Shelter Site - Oxford & Elm St.	97	001	8346	0.024	0.023	0	0.04	0.036	0	0.048	0.047	0.005	60
23-017-0011	1	4	Mexico	Oxford	Hunt's Property - Route #2	97	104	6251	0.012	0.011	0	0.022	0.021	0	0.039	0.032	0.004?	9
23-017-2007	2	2	Rumford	Oxford	Village Green - Route #108	97	104	8211	0.012	0.012	0	0.034	0.029	0	0.055	0.049	0.004	9

? indicates that the mean does not satisfy summary criteria

Steven McDougall / swmcd@theworld.com / 1998 September 27