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9090832 
Journal Article 
Environmental Monitoring Near Industrial Sites: Sampling and Analysis of Selected Toxic Substances. Task I - Vinylidene Chloride 
Going, JE; Spigarelli, JL 
1977 
English 
A sampling and analysis program was conducted to determine the levels of vinylidene chloride (VDC) in air and water around 6 industrial sites, in drinking water from 4 major U.S. cities, and in several types of solid final products made from VDC polymers or co-polymers. Air was collected at perimeters of the industrial sites as 24-hr composite samples using charcoal adsorption tubes. Grab water samples were collected up- and downstream, at the plant discharge and at the municipal water treatment plants. In general, VDC in air was found only at monomer and polymer production facilities. The highest level detected, 51.8 micrograms/cu m (0.014 ppm) was found down wind of a monomer production plant at the property line. At sites where VDC was found, its distribution correlated with the wind behavior that existed during the sampling period. The highest level of VDC in water (550 ppb) was found in an industrial wastewater canal. Generally, the level was less than 1 ppb and was detectable by gas chromatography/mass spectrometry (GC/MS) only. VDC was detected only in Miami, Florida drinking water at levels of 0.045-0.059 micrograms/l. VDC was found in two samples of Saran Wrap ant 4.9 and 58 ppm. No VDC was detected in PVDC monofilaments, modacrylic fibers or meat packaging film. The air and water samples were analyzed by gas chromatography and results confirmed by GC/MS; identities of other compounds in the samples were also established. (Seip-IPA) 
Water Resources Abstracts; Industrial wastes; Potable water; Polymers; Water pollution; Air pollution; Pollutant identification; Vinylidene chloride; Gas chromatography; Mass spectrometry; Waste water(Pollution); Measurement; Testing; Product contamination; Wind dispersion; SW 3020:Sources and fate of pollution; SW 3010:Identification of pollutants