Health hazard evaluation report: HETA-89-348-2295, United States Forest Service, Red River, New Mexico.
Morgantown, WV: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, HETA 89-348-2295, 1993 Mar; :1-32
In response to a request from the United States Forest Service, an investigation was begun of possible hazards to workers at the Red River Ski Area (SIC-7999) in New Mexico resulting from the use of Snomax, an ice nucleation product used in snowmaking operations. The product was a freeze dried preparation of an endotoxin producing Gram negative bacteria, Pseudomonas-syringae. Snowmaking was done at the Red River Ski Area only during the night, and never when skiers were present. Samples were collected over 3 days to assess occupational exposures to airborne dusts, viable Gram negative bacteria, and endotoxins. Viable P-syringae were not identified in any air, snow or water samples. Endotoxins were detected in snow samples, samples of snowmaking water, and in airborne dust samples. Personal exposures to endotoxins among workers directly involved in snowmaking ranged from 1 endotoxin unit (EU) per cubic meter (m3) to 92EU/m3. There were no occupational standards for endotoxin exposure. The author concludes that workers were exposed to endotoxins during snowmaking. The mean exposures in the high exposure category were below estimated human threshold levels. No significant respiratory problems were reported by the workers filling out a questionnaire.
We take your privacy seriously. You can review and change the way we collect information below.
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance.
Cookies used to make website functionality more relevant to you. These cookies perform functions like remembering presentation options or choices and, in some cases, delivery of web content that based on self-identified area of interests.
Cookies used to track the effectiveness of CDC public health campaigns through clickthrough data.
Cookies used to enable you to share pages and content that you find interesting on CDC.gov through third party social networking and other websites. These cookies may also be used for advertising purposes by these third parties.