Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, HETA 90-317-2150, 1991 Oct; :1-16
In response to a request from the Director of the Hawaii County Civil Defense Agency (SIC-9229), a site visit was conducted between July 30 and August 2, 1990 in an effort to measure possible hazardous exposures resulting from the lava flow from Kilauea Volcano entering the ocean with the resulting formation of laze, an acidic steam cloud formed by the interaction of lava with seawater. Short term colorimetric detector tubes measured hydrochloric-acid (7647010) (HCl) concentrations in the dense laze near the shoreline at 10 to 15 parts per million (ppm). Air samples collected over longer periods of time gave HCl concentrations of up to 3.6ppm. Samples collected at the civil defense road block locations and in areas where the general public or community residents had access measured from not detectable to 1.1ppm. Hydrofluoric-acid (7664393) (HF) concentrations ranged from nondetectable to 0.4ppm. Analyses for other acids and for sulfur-dioxide (7446095) did not prove fruitful. The author concludes that civil defense personnel, community residents, and the general public were not being exposed to concentrations of HCl, HF or other inorganic acids in excess of occupational standards in the unrestricted areas. The author recommends that protective equipment be used by individuals who may be downwind of the laze, including civil defense workers, photographers, geologists, and others authorized to be in restricted areas of the lava flow.
Keywords
NIOSH-Author; NIOSH-Health-Hazard-Evaluation; NIOSH-Technical-Assistance-Report; HETA-90-317-2150; Hazard-Unconfirmed; Region-9; Acid-mists; Occupational-exposure; Environmental-contamination; Air-contamination;
Author Keywords: Public Order and Safety, Not Elsewhere Classified; hydrochloric acid; hydrofluoric acid; sulfur dioxide; volcanic emissions; civil defense
CAS No.
7647-01-0; 7664-39-3; 7446-09-5
Publication Date
19911001
Document Type
Field Studies; Hazard Evaluation and Technical Assistance
Fiscal Year
1992
NTIS Accession No.
PB92-145853
NTIS Price
A03
Identifying No.
HETA-90-317-2150
NIOSH Division
DSHEFS
SIC Code
9229
Source Name
National Institute for Occupational Safety and Health
Links with this icon indicate that you are leaving the CDC website.
The Centers for Disease Control and Prevention (CDC) cannot attest to the accuracy of a non-federal website.
Linking to a non-federal website does not constitute an endorsement by CDC or any of its employees of the sponsors or the information and products presented on the website.
You will be subject to the destination website's privacy policy when you follow the link.
CDC is not responsible for Section 508 compliance (accessibility) on other federal or private website.
For more information on CDC's web notification policies, see Website Disclaimers.
CDC.gov Privacy Settings
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.
Thank you for taking the time to confirm your preferences. If you need to go back and make any changes, you can always do so by going to our Privacy Policy page.