Western Research Institute (WRI) performed monitoring of selected emissions for Entech, Inc. , on a TOS-80 Model incinerator in Anchorage, Alaska. Nine test burns were monitored from April 20 to May 8, 1993. Materials burned included municipal solid waste, tires, medical waste, railroad ties, used oil and auto fluff. Particulates, hydrogen chloride, and organics in metals emissions were measured from the stack exhaust gases for each burn. WRI used procedures described in 40 CFR Part 60, Appendix A, Methods 1 and 5 for particulate emissions; 40 CFR Part 60, Appendix A, Method 23 for organic emissions; 40 CFR Part 266, Appendix IX for metals emissions; and the Puget Sound Air Pollution Control Agency procedure for hydrogen chloride (HCI) emissions. EPA's Toxicity Characteristic Leaching Procedure (TCLP, 40 CFR Part 261, Appendix 2) was conducted on samples of the residual ash from each burn. Particulate and HCI emissions were monitored using one impinger sampling train. Particulate emissions, corrected to a 12% carbon dioxide (C02 ) basis, were less than the 0.08 g/dscf limit set by the state of Alaska. One exception occurred during the early part of burn 1, when the operator's experiment with system capabilities resulted in visible emissions of black, particulate-laden smoke form the stack. Particulate emissions from most burns were <0.02 gr /dscf. The HCI emission factor calculated from the medical waste burn was 0.0052 lb per lb medical waste. HCI emissions for all burns ranged from 4 ppm to 140 ppm. Samples of the stack gas for metals emissions determination were collected in an EPA-designated impinger sampling train. Up to 0.9 ng/dscm of lead and up to 0.16 ng/dscm of cadmium were detected in samples of the stack gases from burns 2, 6, and 9. Ash from burns 2, 5/6, and 9 had higher than normal concentrations of these two metals. Ash from burn 6 failed the TCLP test for lead and burn 9 auto fluff failed the TCLP test for cadmium. Ash from burn 2 passed the TCLP test for both of these metals. The high stack temperatures >1700°F (927°C) experienced during the tests caused decomposition of some metal parts on the sampling probes. This decomposition is believed to contribute to the moderate concentrations of chrome and nickel detected in impinger and acetone wash solutions. Zinc was found in gaseous emissions from all burns (up to 2 ng/dscm) . Organic emissions were measured with an impinger sampling train containing an XAD-2 resin trap. The high dioxin and furan levels were barely distinguishable from the field blank for most burns. Benzoic acid and phthalates were measured in some samples. Benzoic acid is believed to originate from products of decomposition of the XAD-2 resin used to trap organics. The phthalates are common in plastic materials and may be due to laboratory and field contamination.