REDOUBT VOLCANO
Date	SO2 rate	n	s.d.	CO2 rate
20-Mar-90	4609	5	534	n.m.
21-Mar-90	2033	8	261	n.m.
22-Mar-90	1609	6	148	n.m.
23-Mar-90	2502	6	97	n.m.
24-Mar-90	3798	4	182	n.m.
01-Apr-90	3892	9	1151	n.m.
06-Apr-90	3662	6	619	n.m.
07-Apr-90	2819	7	584	n.m.
08-Apr-90	4145	8	433	n.m.
11-Apr-90	4826	7	1381	n.m.
11-Apr-90	2510	8	190	n.m.
14-Apr-90	1691	8	286	n.m.
17-Apr-90	5855	8	752	n.m.
22-Apr-90	3464	8	584	n.m.
25-Apr-90	6121	8	967	n.m.
27-Apr-90	3601	8	939	n.m.
03-May-90	3258	6	540	n.m.
04-May-90	4115	9	323	n.m.
19-May-90	3116	9	402	n.m.
20-May-90	4177	9	534	n.m.
22-May-90	4150	10	894	n.m.
25-May-90	2492	11	404	n.m.
01-June-90	1249	6	99	n.m.
02-June-90	1489	4	421	1200
05-June-90	3814	4	261	2400
07-June-90	1601	7	313	n.m.
09-June-90	2340	6	198	n.m.
11-June-90	2462	3	39	n.m.
30-June-90	657	6	100	n.m.
04-July-90	868	6	174	n.m.
12-July-90	1591	9	132	n.m.
16-July-90	1131	6	205	n.m.
19-July-90	2179	6	121	n.m.
03-Aug-90	1660	6	219	n.m.
13-Aug-90	1008	5	115	n.m.
14-Aug-90	2376	6	138	n.m.
15-Aug-90	1002	6	183	n.m.
15-Aug-90	742	6	37	n.m.
15-Aug-90	2609	5	368	n.m.
31-Aug-90	469	5	161	n.m.
07-Sept-90	188	4	21	n.m.
07-Sept-90	680	3	81	n.m.
13-Sept-90	723	4	78	n.m.
25-Sept-90	297	6	43	n.m.
28-Sept-90	897	6	89	n.m.
03-Oct-90	366	8	21	n.m.
15-Oct-90	586	4	36	n.m.
21-Oct-90	510	9	76	n.m.
27-Oct-90	162	8	36	n.m.
08-Nov-90	577	8	158	n.m.
23-Jan-91	297	2	140	n.m.
21-Mar-91	35	7	10	n.m.
04-Apr-91	149	9	45	n.m.
10-Apr-91	29	5	11	n.m.
06-May-91	73	5	25	n.m.
22-May-91	24	4	7	n.m.
31-May-91	0	2	0	n.m.
21-Aug-91	0	2	0	n.m.
14-May-92	0	1	0	n.m.
14-Oct-92	0	2	0	0
23-Oct-92	0	1	0	0
15-Nov-92	0	1	0	0
24-Apr-93	0	2	0	0
07-July-94	0	2	0	0
SPURR VOLCANO
Date	SO2 rate	n	s.d.	CO2 rate
22-Jul-91	0	1	0	n.m.
21-Aug-91	0	2	0	n.m.
29-Aug-91	0	2	0	n.m.
03-Sep-91	85	2	18	n.m.
22-Nov-91	0	2	0	n.m.
14-May-92	88	2	10	n.m.
08-Jun-92	21	2	4	n.m.
29-Jun-92	5	5	3	n.m.
10-Sep-92	0	0	0	n.m.
21-Sep-92	23	5	12	n.m.
23-Sep-92	24	4	7	n.m.
24-Sep-92	79	3	11	n.m.
25-Sep-92	300	4	54	11000
28-Sep-92	194	4	25	12000
29-Sep-92	749	3	75	8700
02-Oct-92	452	2	0	n.m
03-Oct-92	220	4	114	4800
04-Oct-92	212	4	72	3500
05-Oct-92	356	4	173	2900
10-Oct-92	243	3	100	n.m
14-Oct-92	47	3	4	2400
15-Oct-92	64	2	4	n.m.
16-Oct-92	105	4	16	>2000
19-Oct-92	0	1	0	>0
23-Oct-92	24	2	3	2100
29-Oct-92	0	1	0	>0
10-Nov-92	0	1	0	0
11-Nov-92	0	3	0	0
12-Nov-92	0	1	0	1100
13-Nov-92	0	1	0	1000
15-Nov-92	0	1	0	1000
08-Dec-92	0	1	0	>1000
11-Dec-92	0	1	0	>500
15-Dec-92	0	1	0	3200
18-Dec-92	0	1	0	>1000
23-Dec-92	0	1	0	>1000
21-Jan-93	0	1	0	>1000
18-Feb-93	0	1	0	>400
24-Apr-93	0	1	0	>930
07-Jul-94	0	1	0	0
ILIAMNA VOLCANO
Date	SO2 rate	n	s.d.	CO2 rate
20-Mar-90	0	2	0	n.m.
05-June-90	0	2	0	n.m.
31-May-91	24	4	5	n.m.
13-June-91	18	2	4	n.m.
21-Aug-91	41	3	9	n.m.
21-Nov-91	0	3	0	n.m.
23-Oct-92	35	2	6	0
24-Apr-93	38	2	5	0
07-July-94	19	2	6	0
AUGUSTINE VOLCANO
Date	SO2 rate	n	s.d.	CO2 rate
20-Mar-90	0	2	0	n.m.
13-June-91	4	3	1	n.m.
21-Aug-91	0	2	0	n.m.
20-Nov-91	0	2	0	n.m.
14-May-92	0	2	0	n.m.
23-Oct-92	0	1	0	0
07-July-94	0	2	0	0