Project at a Glance

Title: Assessment of combustion sources that emit polychlorinated dioxins and furans, polycyclic aromatic hydrocarbons, and other toxic compounds

Principal Investigator / Author(s): Hosenfeld, John M

Contractor: Midwest Research Institute

Contract Number: A832-124

Research Program Area: Emissions Monitoring & Control

Topic Areas: Stationary Sources, Toxic Air Contaminants


The ARB is interested in determining the emission level from a series of facilities that may have the potential to produce by product emissions of toxic air contaminants (TACs). These TACs include dioxins and furans, PAHs, and metals. The present study examined the waste oil users, drum reconditioners, and wire reclamation facilities as possible sources of these TACs. The waste oil users were manufacturing facilities that used the waste oil as fuel for heating their rotary kilns. Inlet and outlet sampling was conducted across the baghouse fabric filters at each site. In contrast, the drum reconditioner facilities were sampled to determine the emissions from a drum burning operation. There was no APCD, although that industry refers to the installed afterburner as such a device. Outlet sampling only was conducted at these two facilities. The wire reclamation facility removes coating from wire by means of burning and only samples of ash were collected.

The results of the waste oil users indicate that there was a decrease in dioxin and furan emissions across the APCD. A similar trend was seen in the PAH emissions. The metals analysis indicated removal across the APCD for one facility, but the other exhibited no distinct trend. The drum reconditioners had dioxin and furan level higher than the waste oil users. The wire reclamation ash was submitted to ARB for analysis.

In order to place the TAC levels found in this study in some perspective, the data were compared to cement kiln data. The dioxin and furan data from the waste oil users were about two orders of magnitude lower than that from the cement kilns. The metals data showed no apparent difference between the two sources. The drum reconditioners have dioxin and furan and metals emissions that are comparable to the cement kiln data.

For questions regarding this research project, including available data and progress status, contact: Research Division staff at (916) 445-0753

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