Volatile organic compound

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Volatile organic compound

(VOC)
Any organic compound that evaporates at room temperature and is hazardous to human health, causing poor indoor air quality. Many VOCs found in homes, such as paint strippers and wood preservatives, contribute to sick building syndrome because of their high vapor pressure. VOCs are often used in paint, carpet backing, plastics, and cosmetics. The U.S. Environmental Protection Agency (EPA) has found concentrations of VOCs in indoor air to be, on average, two to five times greater than that in outdoor air. During certain activities, indoor levels of VOCs may reach 1,000 times that of the outside air.
References in periodicals archive ?
In the 2001 construction of its campus in North Carolina, the EPA found that total VOCs dropped to an acceptable range between 12 and 14 days after the beginning of the 90-day flush-out--evidence that proper planning and steps to prevent off-gassing save time and money in the long run.
announces that it has acquired exclusive distribution rights to market a new VOC abatement system called Fumes-to-Fuel, from Climate Technologies Corporation.
However, even with that increase in stress, no significant increase in health symptoms or reduction in neurobehavioral performance was linked to the exposures to VOCs either alone or combined with ozone, despite sharp increases in many secondary pollutants resulting when ozone was added to the VOC mixture.
Among the VOCs that Adgate and his team studied were chloroform, a by-product of chlorination that's released from household water; d-limonene and a- and b-pinene, common deodorizing chemicals that produce scents of lemon and pine; para-dichlorobenzene, an air freshener and pesticide; and tetrachloroethylene, which emanates from dry-cleaned clothing.
The ministry released a first study in September on the levels of the 10 most harmful VOCs alleged to be in the pads.
to introduce a waterborne tinting system with zero VOCs (according to EPA Method 24) in 2005.
In contrast, EnviCat VOC offers a high conversion efficiency of more than 99%, yet it operates at up to 400C lower temperatures.
SCAQMD will likely add these methods to all its coating VOC rules in the future.
The VOCs released from the specimen surfaces were absorbed by Tenax-TA tubes and were recorded on days 1, 3, 7, 14, 21, and 28.
Vadoud Niri, a researcher at State University of New York at Oswego who led the study, built a sealed chamber containing specific concentrations of several common VOCs and monitored the levels over several hours with and without certain types of plants in the chamber.
New Generation Flexible PVC Compounds with Low Volatile Organic Compound (VOC) Content VOC Content Total Reduction parts per from Compound Plasticizer Additives million control, % Apex 77 Shore A Phthlate Standard 187 -- (Control) Apex 77 Shore Phthlate Low-VOC 59 68 A-LVOC Apex 77 Shore A-NP Phthlate Standard 117 37 Apex 77 Shore A-NP/ Phthlate Low-VOC 19 90 LVOC BioVinyl 65 Shore A Bio-based Low-VOC 36 81 LVOC BioVinyl 65 Shore A Bio-based XLow-VOC 20 89 XLVOC