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ATSDR Press Room

ATSDR Launches Community Web Site on Marietta Air Investigation as Health Activities Continue

Washington County, Marietta, Ohio

Tuesday, February 26, 2008

For Immediate Release: February 26, 2008

ATLANTA - As their year-long Marietta Air Investigation in the Mid-Ohio Valley enters its final phase, the federal Agency for Toxic Substances and Disease Registry (ATSDR) has launched a Web site for area residents to view updated site information, including air sampling results. The Web site address is

Once the investigation concludes in March, ATSDR will prepare a health consultation to provide an interpretation of the air sampling and weather data results. ATSDR expects to complete the health consultation by mid-2008. Residents will be able to download this and all previously released Health Consultations from the Web site.

The health consultation will also present the results of a "fingerprinting analysis" of samples from the four air monitoring stations ATSDR placed in Ohio and West Virginia. This analysis was conducted to determine whether metals in ambient air at all locations are being emitted from the same source or from different sources.

Based on previous air sampling in the area, ATSDR has targeted manganese for possible further evaluation. It is uncertain whether chronic manganese inhalation at the concentrations measured in this investigation might cause subtle neurological effects. The health consultation will help ATSDR determine whether to recommend a health study.

Additionally, the U.S. Environmental Protection Agency (U.S. EPA) has proposed funding a pilot study of children's exposures to manganese inhalation and health outcomes in the Mid-Ohio Valley. Findings from the pilot study could warrant a larger and more thorough study by ATSDR. ATSDR, the U.S. EPA, and researchers from several academic institutions have worked in close collaboration to design proposals for both of these proposed studies.

For information about ATSDR's air monitoring efforts and the forthcoming health consultation, contact Michelle Colledge at 312-886-1462 or For more information about the potential ATSDR health study, contact Stephanie Davis at 770-488-3676 or ATSDR and CDC maintain a general toll-free number (1-800-CDC-INFO); callers to this number should reference the Marietta Air Emissions Site.

ATSDR, a federal public health agency of the U.S. Department of Health and Human Services, evaluates the human health effects of exposure to hazardous substances.

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Related PHA & HC For this Press Release

Marietta Area Air Investigation
Document Date: 7/1/2009 - HC  [PDF - 497 KB]

Washington County Air Quality
Document Date: 6/18/2007 - HC  [PDF - 1030 KB]

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Related News Releases For Washington County, Marietta, Ohio


ATSDR Health Consultation Released on Marietta Area Air Investigation; EPA-Funded Health Study Initiated
Release Date: Friday, July 03, 2009
The U.S. Environmental Protection Agency (U.S. EPA) will fund a local health study to evaluate potential health effects from exposure to manganese. The Agency for Toxic Substances and Disease Registry (ATSDR) has recommended this next step after completing a year-long air investigation in the Mid-Ohio Valley. Representatives from ATSDR and EPA will be in the Marietta area in early July to discuss the findings of the air investigation and the plans for the new study.

ATSDR Extends Investigation of Air Emissions In Three Washington County, Ohio and Wood County, West Virginia Locations
Release Date: Friday, March 09, 2007
As part of the air quality investigation of the Marietta Air Emissions Site in Ohio, the Agency for Toxic Substances and Disease Registry (ATSDR) has added additional air monitoring stations. The Ohio Environmental Protection Agency (EPA) will operate the air monitors and perform the laboratory analyses in the year-long data collection designed to show whether chemical emissions from five facilities in the former Union Carbide industrial complex (Chevron/Phillips, Eramet Marietta, Inc., Eveready, American Municipal Power Ohio, Solvay) may affect human health.

Public Meeting on Washington County Air Quality in Ohio
Release Date: Thursday, May 20, 2004
ATSDR will hold a public meeting May 24, 2004, to update Marietta, Ohio, community members about ATSDR's air modeling and other environmental health activities in Marietta. The meeting will be 6 p.m. - 8 p.m. in the Washington State Community College Graham Auditorium, 710 Colegate Dr., Marietta.

Washington County, Ohio, Public Health Consultation
Release Date: Thursday, February 19, 2004
The final version of a public health consultation on the Washington County Air Quality Site in Marietta, Ohio, has been issued by ATSDR. On the basis of lack of data, the agency categorizes the Washington County site as an indeterminate public health hazard.

ATSDR to Hold Community Meeting and Availability Session Concerning Washington County Air Quality Site in Marietta, Ohio
Release Date: Wednesday, December 03, 2003
ATSDR staff to hold community meeting and question and answer session in Marietta, Ohio regarding air quality issues near the former Union Carbide facility on Route 7 in Washington County, Ohio.

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