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U.S. EPA AIRNow Program - Check ozone and particulate status reports and other air monitoring news.
European Directives
European Standards
TUV Approvals
Associations and Professional Groups:
U.S. Environmental Protection Agency
American Industrial Hygiene Association
Air & Waste Mangement Association
U.S. Department of Labor, Occupational Safety and Health Administration (OSHA)
EPRI (Electric Power Research Institute)
American Association for Aerosol Research (AAAR)
Directories:
Pollution Online
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