Using 14C-labeled radiochemicals can cause experimental error in studies of the behavior of volatile organic compounds

Article Abstract:

An evaluation of the application of 14C-labeled radiochemicals to adsorb volatile organic compounds (VOCs) such as trichloroethylene and tetrachloroethylene indicated a high risk for experimental errors. The low volatilization rates of 14C-labeled VOCs compared to unlabeled VOCs may cause isotopic discrimination in the VOCs. This suggests that radiochemicals should not be used for analyzing VOC behavior, even under controlled conditions.

Methods, Radiochemical analysis

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Concentrations of volatile organic compounds in the passenger compartments of automobiles

Article Abstract:

A study was conducted on in-vehicle concentrations of gasoline-derived volatile organic compounds (OC) and formaldehyde. A sample of New Jersey/New York commutes showed that in-vehicle concentrations of gasoline-derived VOCs exceeded ambient air near monitoring sites by a factor of eight. The highest VOC concentrations were detected during high traffic density periods in the morning and evening rush hours.

Automobiles, Environmental aspects

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