In order to understand the emission problem of VOC and Dioxin in Taitung county, we check the pollution source first and set up basic materials and investigation of the present emission situation, besides implementing several standards and regulations, and to draft a control strategy for distribution of pollution source and emission situation to conserve environment quality of Taitung county. This project contain gas station check and control, VOC emission check, the VOC stack measurement, Dioxin emission source check and control. Four applying cases of service station have been accepted till 2004/11/15, three have already obtained the operation permision license of service station. In brief, there are 30 and 29 stations not up to standard in Static Pressure test and A/L test individually. After improvement, there are only one station still not up to standard in Static Pressure test. The substandard ratio drops from 76.9% to 2.6% in Static Pressure test, and from 74.4% to 0% in A/L test. The main industry of VOC emission check of this project is gas stations, and the others contain dry-cleaner, power plain, automobile maintain and maintenance, mixing of asphalt, gaseous fuel supply industry. The VOC emissions of gas stations is 223 ton/yr, and the emissions before improvement is 515 ton/yr, totally, the emission reduction is about 391 ton/yr. The emissions of VOC potential sources is about 5426 ton/yr, in which the fix sources account for 62.1%, about 3371ton/yr, and the mobile sources account for 37.9%, about 2055ton/yr. This project has implement Dioxin check of three factories: Ta-Ho Onyx Taitung Envirionment Co. Ltd., Taitung city crematorium, Chengkung town crematorium. The Dioxin potential sources in Taitung county contain destructors, crematoriums, power plain, mixing asphalt factories, fuel burning of mobile. Totally speaking, the largest emissions of Dioxin potential sources in Taitung county is from diesel vehicles, 0.0523 g I-TEQ/yr, accounts for 61.3% of total amount in the whole county, secondly for

gas station,oil gas retrieves facilities,VOC,Dioxin