- 14 - In previous years, the dryers exhaust vented between 2 and 4 tons of particulate per hour. In 1973, Fabric filters were installed and removed the problem. The Power- house, D.R.S., and tailings are the main Plantsite emission sources remaining. Considerable (over 80%) particulate reduction has been achieved at the tailings by institution of a dust agglomeration system. Mill process and dust control air is Fabric filtered and recirculated internally and thus is not considered an atmospheric emission. 3. MISCELLANEOUS Minor emissions to atmosphere occur as vehicle exhausts, furnace exhausts and process leakage. Such sources are of a relatively insignificant nature and are not considered to constitute a problem at the present time. 4, TOTAL EMISSION PROFILE The data as shown on Tables 4 and 5 clearly indicates the main source of emissions. The 1974 total emission estimate of 12152 tons particulate is considered reasonably reliable, and is distributed according to Table 6 46.9% of total emission is from point sources, and 53.1% is of the fugitive type. Table 7 indicates emission estimates from previous years, and also resultant emissions anticipated if reduction techniques as outlined in Section IV are insti- tuted. lt should be noted that both fugitive sources and point sources are included in Table 7. As better control is instituted at point sources, the major emissions emanate from fugitive sources in an increasing percentage of the total pro- file. Table 8 clarifies this relationship.