Vinyl Chloride Clean Water Act

The clean water act requires epa to develop criteria for surface water quality that accurately reflect the latest scientific knowledge on the impacts of pollutants on human health and the environment.

Vinyl chloride clean water act.

The concentrations in groundwater were up to 0 008 ppm. Clean water act water quality criteria. Its chemical formula is c2h3cl. An acute duration inhalation mrl of 0 5 ppm was derived for vinyl chloride based on a noael for developmental effects for mice john et al.

The regulation for vinyl chloride became effective in 1989. Pvc is used in a variety of applications. Basic information on water quality criteria. The first number under the column headed rq is the reportable quantity in pounds.

Other studies have reported. About 13 billion kilograms are produced annually. Current water quality criteria tables. The clean air act establishes standards for vinyl chloride emissions from production and manufacturing facilities and the epa has published a water quality criteria document for vinyl chloride under the clean water act.

Vinyl chloride is an organochloride with the formula h 2 c chcl that is also called vinyl chloride monomer vcm or chloroethene this colorless compound is an important industrial chemical chiefly used to produce the polymer polyvinyl chloride pvc. Congress specifically identified vinyl chloride as a hazardous air pollutant under the clean air act and it is regulated as such by the epa. Between 1993 and 1995 epa required your water supplier to collect water samples every 3 months for one year and analyze them to find out if vinyl chloride is present above 0 5 ppb. How will vinyl chloride be detected in and removed from my drinking water.

Exposure to vinyl chloride is also subject to workplace safety standards for airborne concentrations. Epa has set a drinking water standard for vinyl chloride. The purpose of the national emission standard for hazardous air pollutants neshap is to minimize vinyl chloride emissions from process and fugitive emission sources in ethylene dichloride vinyl chloride and polyvinyl chloride production categories to the level attainable with best. Vinyl chloride monomer vcm is a colorless flammable gas at room temperature.

Atsdr has derived three mrl values for vinyl chloride. The international national and state regulations and guidelines regarding vinyl chloride in air water and other media are summarized in table 8 1. In a 1982 survey vinyl chloride was found in fewer than 1 of the 945 groundwater supplies tested in the united states. Vinyl chloride has been used in the past as a refrigerant.

It is primarily used to manufacture polyvinyl chloride pvc a very stable non flammable lightweight and durable plastic. Table 117 3 reportable quantities of hazardous substances designated pursuant to section 311 of the clean water act note.