Desorption of residual Ethylene Oxide from Fumigated Library Materials

(Table 1)

Table 1. Effect of Successive Air changes on Residual Ethylene Oxide Concentration (ppm) over Fumigated Materials

Air Changes	Control: empty chamber	Leather scraps	Wood pulp paper	Newsprint paper	Pine wood scraps	Motion picture film	Vinyl audio records
1	21.0	13.0	1000	980	920	1000	180
2	8.5	0.60	255	370	415	1000	35
3	0.44	----	105	180	280	780	----
4	----	----	17.3	110	210	570	----
5	----	----	8.7	56	113	380	----
6	----	----	6.1	26	65	----	7.5
7	----	----	4.9	17.7	----	----	----
8	----	----	1.9	10.2	43	----	----
9	----	----	----	7.3	41	245	2.8
10	----	----	----	6.0	37	----	----
11	----	----	----	5.1	----	----	----
12	----	----	----	2.9	31	----	----
13	----	----	----	2.0	16	87	----
15	----	----	----	----	----	66	----
18	----	----	----	----	----	57	----
25	----	----	----	----	----	38	----