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Environmental Assessment

Journal Article: the National Dioxin Air Monitoring Network (NDAMN): Measurements of CDDs, CDFs and Coplanar PCBs at 15 Rural and 6 National Park Areas of the U.S.: June 1998-December 1999.

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Report Information

The U.S. EPA has established a National Dioxin Air Monitoring Network (NDAMN) to determine the temporal and geographical variability of atmospheric CDDs, CDFs and coplanar PCBs at rural and nonimpacted locations throughout the United States. Currently operating at 32 sampling stations, NDAMN has three primary purposes: (1) to determine the atmospheric levels and occurrences of dioxin-like compounds in rural and agricultural areas where livestock, poultry and animal feed crops are grown; (2) to provide measurements of atmospheric levels of dioxin-like compounds in different geographic regions of the U.S.; and (3) to provide information regarding the long-range transport of dioxin-like compounds in air over the U.S. Designed in 1997, NDAMN has been implemented in phases, with the first phase consisting of 9 monitoring stations. Previously EPA has reported on the preliminary results of monitoring at 9 rural locations from June1998 through June 19991. The one-year measurement at the 9 stations indicated an annual mean TEQDF–WHO98 air concentration of 12 fg m-3. Since this reporting, NDAMN has been extended to include additional stations. The following is intended to be an update to this national monitoring effort. We are reporting the air monitoring results of 22 NDAMN stations operational over 9 sampling moments from June 1998 to December 1999. Fifteen stations are in rural areas, and 6 are located in National Parks. One station is located in suburban Washington DC and is more urban in character and serves as an indicator of CDD/F and coplanar PCB levels in more populated areas.

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David Cleverly
  • by phone at:   703-347-8629
  • by email at:  cleverly.david@epa.gov

Additional Information

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Citation

Cleverly, D., D. Winters, J. Ferrario, J. Schaum, K. Riggs, P. Hartford, D. Joseph, T. Wisbith, A. Dupuy, AND C. Byrne. Journal Article: the National Dioxin Air Monitoring Network (NDAMN): Measurements of CDDs, CDFs and Coplanar PCBs at 15 Rural and 6 National Park Areas of the U.S.: June 1998-December 1999. Organohalogen Compounds 51:1-4, (2001).

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