Occupational respiratory diseases. Merchant JA, Bochlecke BA, Taylor G, eds. Morgantown, WV: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 86-102, 1986 Sep; :41-68
The current procedures employed by industrial hygienists to assess, measure, and characterize occupational exposure to potentially hazardous airborne gases and vapors were described. Two air sampling methods were employed by industrial hygienists: grab sampling, in which a volume of air was collected over a short period of time ranging from a few seconds to less than 2 minutes; and integrated sampling, in which a known volume of air was metered through an appropriate absorbing or adsorbing medium which removed gaseous contaminants from the airstream. Both these methods required laboratory analysis of the collected samples. Analysis of grab samples provided information on the airborne concentration of the contaminant at the sampling location at a given point in time, while analysis of integrated samples reflected longterm exposure levels. Direct reading instrumentation capable of immediate detection and measurement of potentially hazardous contaminants was also available. Methods and equipment used in colorimetric direct reading instrumentation and electronic direct reading instrumentation were described. Important criteria for the selection of sampling methods, which included, the solubility, volatility and reactivity of the contaminant being measured, and the sensitivity and specificity of the analytical method, were summarized.
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.