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Tetrachloroethylene: Dry Cleaning Clothing

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BACKGROUND Tetrachloroethylene (PCE) is a solvent used for drying cleaning clothing. PCE has a distinct smell that many people are familiar with. PCE is also used to degrease metals and can also be involved in the creation of other chemicals. It is a colorless liquid that is believed to be carcinogenic in humans. Short term exposure to PCE can result in dizziness and headaches; long term exposure manifests itself via kidney or liver problems, possible increased cancer risk, and complications for the developing fetus (Public Health Service, 2014). In one study, researchers found that dry cleaning employees were at increased risk for bladder cancer, but could not definitively say that tetrachloroethylene was the cause, though the subjects …show more content…

In the absence of such studies, the EPA uses human data, but even human data connecting PCE to adverse health effects is scant. However, some of this human data suggests reproductive difficulties for women exposed to PCE in their workplace (Public Health Service, 2014). Testing on rats and rabbits exposed to PCE resulting in “increased pre- and post-implantation losses, decreased litter sizes, and decreased survival during lactation” (Public Health Service, 2014, p. …show more content…

The assumption is that the receptor is otherwise healthy, and is only exposed to PCE during their working hours (U.S. Environmental Protection Agency, 2012). This also assumes method of exposure is via inhalation for workers. However, due to the nature of tetrachloroethylene, particularly in vapor form, this means that residents in the vicinity of dry cleaning businesses and metalworking operations are at risk for exposure to PCE via inhalation as well. The amount of PCE residents are exposed to via inhalation can also be manipulated by the weather on any particular day. Windy days can mean less exposure to the contaminant, even in smaller living spaces nearer to the source of contamination, particularly if that space is well ventilated. The effects of PCE on children, the elderly, or those with compromised health mean that an acceptable reference dose may need to be lower than for a healthy, indoor

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