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Health Hazard Evaluations (HHEs)

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All NIOSH Health Hazard Evaluation reports and other NIOSH publications are available at no cost. You can either download a copy of the publication from the website or contact us for a copy. For HHE reports, please send an email to HHERequestHelp@cdc.gov. Information about all other NIOSH publications is available at https://www.cdc.gov/niosh/pubs/.

We carefully review our reports prior to publication, but we do make errors from time to time. We regret any typographical or other minor errors that you might find. If you find a substantive factual or data-related error, let us know. Please send an email to HHERequestHelp@cdc.gov with the report number (ex. HHE 2013-0500-7500), the authors' names, the error you are reporting, and the page number of the error. We will look into your comments, fix confirmed errors, and repost the report. Thank you for your interest in the HHE Program.

HHE Search Results

1062 HHE reports were found based on your search terms. Reports are listed in order of year published with the most recently published reports listed first.


Year Published and Title

(2014) Coccidioides exposures and coccidioidomycosis infections among prison employees. (Click to open report)
The Health Hazard Evaluation (HHE) Program received a request on behalf of a state correctional and rehabilitation agency and a state correctional health care services agency concerning potential employee exposure to the fungus Coccidioides at two state prisons in California. Coccidioidomycosis, also known as valley fever, is a disease caused by inhalation of spores of a fungus of the Coccidioides species, which grows in the soil in semiarid areas. The prisons are located in counties where the d... (Click to show more)

(2014) Employee exposures to Libby amphibole asbestos during forest management activities in the Kootenai National Forest. (Click to open report)
The Health Hazard Evaluation Program received a request from managers serving the Kootenai National Forest in Montana. The request concerned employees' potential exposure to Libby amphibole during forest management and fire suppression activities in an area surrounding a former vermiculite mine. The site has approximately 40 full-time employees, and up to 100 additional employees in the summer. Work shifts are typically 8-10 hours per day. Most of the work involves land management activities, in... (Click to show more)

(2014) Erionite and silica exposure during dirt road maintenance. (Click to open report)
The Health Hazard Evaluation Program received a request from a management representative at a federal government agency concerned about potential employee exposures to erionite mineral fibers when maintaining dirt roads in areas where erionite was confirmed or was suspected to be present. We visited two field offices to assess potential employee exposures to erionite and respirable crystalline silica (quartz) during road maintenance activities in October 2012 and August 2013. Erionite is a natur... (Click to show more)

(2014) Exposure to chemicals at a polymer additive manufacturing facility. (Click to open report)
The Health Hazard Evaluation Program received a request from the union at a polymer additive manufacturing facility. Employees were concerned about developing chronic health problems including lung disease, kidney disease, and cancer, from exposure to workplace chemicals. Chemicals of concern included several used to make the polymer additive (including aniline and N-oxydiethylenethiocarbamyl-N'-oxydiethylenesulfenamide [OTOS]) and manufacturing byproducts (including hydrogen sulfide and a benzo... (Click to show more)

(2014) Exposure to metals at an electronic scrap recycling facility. (Click to open report)
The Health Hazard Evaluation Program received a request from managers at an electronic scrap recycling company. The request concerned possible employee exposure to lead and cadmium. The company's primary activities included recycling batteries, metals, cardboard, and ballast and capacitors for fluorescent lights. Other activities included sorting, dismantling, and shredding electronic equipment such as computers (excluding cathode ray tube monitors), printers, keyboards, central processing units... (Click to show more)

(2014) Exposures of helicopter pilots and gunners to firearm noise and lead during gunnery target training exercises. (Click to open report)
The Health Hazard Evaluation (HHE) Program received a technical assistance request from managers in the flight safety office of a federal agency. Managers were concerned about helicopter crews' exposures to gunshot noise, vibration, and lead during airborne offshore and ground range gunnery training exercises. The helicopter crews (50 pilots and 25 gunners) assisted in the interception and disabling of drug- and contraband-running watercraft. They flew MH-65C "Dolphin" helicopters. In response t... (Click to show more)

(2014) Health concerns at a pet food manufacturing facility - Missouri. (Click to open report)
In September 2012, the National Institute for Occupational Safety and Health received a confidential health hazard evaluation request from employees of a pet food manufacturing plant in Missouri. The requesters expressed concerns about vomiting, seizures, and breathing problems potentially associated with substances used in the manufacture of pet food and dog biscuits and/or possible phosphine exposure, which is a fumigant applied to bulk materials prior to arriving at the facility. They were al... (Click to show more)

(2014) Lead exposure at a firing range and gun store. (Click to open report)
The Health Hazard Evaluation Program received a request for an evaluation from employees of a firing range and gun store. Employees were concerned about lead exposure and reported being diagnosed with lead poisoning and being medically removed from the workplace by an occupational physician. We visited the facility in December 2013 to interview employees, assess lead exposures, and evaluate ventilation system performance. In February 2014, we provided a summary of the environmental sampling resu... (Click to show more)

(2014) Metals, solvents, formaldehyde, ventilation, and ergonomic risks during the manufacture of electrical cable accessories. (Click to open report)
The Health Hazard Evaluation Program received a request from employees at a manufacturer of premolded cable accessories for underground power distribution systems. Employees were concerned about poor ventilation, ergonomic risks, and developing respiratory disease or cancer from exposures during rubber molding, plastic extrusion, soldering, and painting. The plant operated 24 hours a day, 7 days a week with approximately 300 nonunion production employees working 8-hour shifts. Paint department e... (Click to show more)

(2014) Occupational exposures at an electronic scrap recycling facility. (Click to open report)
The Health Hazard Evaluation Program received a request from a health and safety manager at an electronic scrap recycling facility. The employer was concerned about workplace exposures, including lead and cadmium. Computers, monitors, hard drives, televisions, printers, light bulbs, and other e-scrap were recycled and processed at this facility. The recycling operations included cathode ray tube (CRT) processing (demanufacturing and glass breaking operations, and electronic sorting, demanufactur... (Click to show more)


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