tailieunhanh - Optimal Time for Collecting Volatile Organic Chemical Samples from Slowly Recovering Wells

Worldwide consumption of organic products has experienced tremendous growth, often surpassing the . figures of 20 percent annual gain. Much of the increase in worldwide consumption has been fueled by consumers’ demand for GMO-free products. Because GMOs are disallowed in organic production and processing, organic products auto- matically are designated as GMO-free at the marketplace. European consumers have led the demand for organic products, particularly in coun- tries such as the Netherlands, Italy, and Austria. Two percent of all German farmland, four percent of Italian farmland, and 10 percent of Austrian farm- land is managed organically. Prince Charles of England has developed a model organic farm and has established a system of government support for farmers. | EG 142 HWRIC RR-058 Optimal Time for Collecting Volatile Organic Chemical Samples from Slowly Recovering Wells Sheng-Fu J. Chou Beverly L Herzog John R. Valkenburg and Robert A. Griffin 1991 ENVIRONMENTAL GEOLOGY 142 HWRIC RR-058 Department of Energy and Natural Resources ILLINOIS STATE GEOLOGICAL SURVEY HAZARDOUS WASTE RESEARCH AND INFORMATION CENTER Optimal Time for Collecting Volatile Organic Chemical Samples from Slowly Recovering Wells Sheng-Fu J. Chou Beverly L. Herzog John R. Valkenburg and Robert A. Griffin Final Report Hazardous Waste Research and Information Center Department of Energy and Natural Resources Dr. Gary D. Miller and Jacqueline Peden Project Officers ENR Contract No. HWR 86019 1991 Environmental Geology 142 HWRIC RR-058 Illinois State Geological Survey 615 East Peabody Drive Champaign Illinois 61820 Hazardous Waste Research and Information Center One East Hazelwood Drive Champaign Illinois 61820 ACKNOWLEDGMENTS This research was conducted under contract to the Hazardous Waste Research and Information Center HWRIC a division of the Illinois Department of Energy and Natural Resources. Gary D. Miller and Jacqueline Peden were the project officers. SCA Chemical Services Wilsonville Illinois provided additional support. This report part of HWRIC S Research Report series was subjected to the Center s external scientific peer review. Mention of trade names or commercial products does not constitute endorsement. Cover photo Using a gas chromatograph Sheng-Fu J. Chou analyzes volatile organic compound samples. Printed by authority of the state of Illinois 1991 .