Frequent Questions

Should I be concerned about a rotten egg smell in my home or workplace?

There are a couple of potential common causes for a rotten egg odor. These include a natural gas leak or the presence of "sewer gas" in the vicinity.

Information about natural gas leaks – from the National Institute of Health

The following Web sites provide information on sewer gas:


If the smell is coming from outdoors, you may want to contact your public works department to inquire about a possible sewer main break.

If this is a workplace issue, you may also want to contact the U.S. Occupational Safety and Health Administration (OSHA).

For a directory of Regional & Area Offices, see OSHA Offices by State

Find options for contacting OSHA at:
OSHA Contact Information
Phone: 1-800-321-OSHA (6742)

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