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EPA welcomes your comments, especially comments on how we can improve our Web site. We strive to respond to every comment with an answer or an appropriate referral as quickly as possible. Most comments will be responded to within 10 business days.

For technical inquiries contact:

April Richards
or
Paul Shapiro

Mailing Address:

US Environmental Protection Agency
Office of Research and Development
National Center for Environmental Research
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Washington, DC 20460

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