Health Hazard Evaluations (HHEs)

Each month we will update this page to highlight newly released final reports and information on new and emerging hazards we are evaluating. Check back often to see what we are up to!

What's New

Waste Anesthetic Gas Recommendations Provided to a Veterinary Hospital
HHE Program investigators evaluated isoflurane gas exposures and miscarriages reported among employees. We recommended replacing passive scavenging systems with active scavenging systems, training employees on hazards within the veterinary hospital, and evaluating other potential reproductive hazards at the veterinary hospital. Read the report: https://www.cdc.gov/niosh/hhe/reports/pdfs/2017-0077-3336.pdfpdf icon

Noise Recommendations Provided to a Precast Concrete Manufacturer
Finding noise overexposures among workers in all the job titles we monitored, HHE Program investigators recommended installing engineering noise controls, improving the existing hearing conservation program, audiometric testing on a regular basis, maintaining equipment, and implementing a Buy Quiet program. Read the report: https://www.cdc.gov/niosh/hhe/reports/pdfs/2015-0133-3339.pdfpdf icon

2018 Health Hazard Evaluation Program Annual Report
The NIOSH Health Hazard Evaluation (HHE) Program is pleased to share its 2018 annual report. Our report includes summaries of projects that were interesting and other highlights of our year. We hope the report stimulates conversations about who the HHE Program is and how we make a difference for the health and safety of employees throughout the United States. The annual report is available here: https://www.cdc.gov/niosh/hhe/pdf/2018-Health-Hazard-Evaluation-Program-Annual-Report.pdfpdf icon

Page last reviewed: September 28, 2018, 12:00 AM