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Air Volatile organic compounds What is the issue?Volatile organic compounds (VOCs) react with nitrogen oxides in sunlight to form ground-level ozone and contribute to smog. Some VOCs, such as benzene, have been identified as potential cancer-causing agents. What is industry’s impact?VOCs, including toluene, xylene and benzene, occur naturally in petroleum and are also produced during oil refining. These emissions can be released into the atmosphere during refining, storage and distribution of products. Fugitive VOC emissions sometimes escape from sources such as valves, seals and vents. What is industry doing?The industry has programs in place to control VOC emissions. Refineries, for example, have voluntarily implemented leak detection and repair programs. Also, vapor-recovery equipment, installed on tanker trucks and storage tanks of terminals, bulk plants and service stations, is helping to reduce VOC releases.
 
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