Wipe sampling to assess pesticide exposures on skin: preliminary method evaluation.
Boeniger M; Carreon T; Sanderson W; Nishioka M
American Industrial Hygiene Conference and Exposition, June 2-7, 2001, New Orleans, Louisiana. Fairfax, VA: American Industrial Hygiene Association, 2001 Jun; :71
Background: Skin exposures to pesticides in agriculture are considered to be the primary route of worker contact. However, there remains a paucity of data about how to quantify and interpret sampling results. A preliminary range finding and method evaluation survey was recently performed in California in preparation for a larger study to determine exposure reduction intervention effectiveness. Methods: Hand wipes (using the NHEXAS isopropanol moistened J&J Sof-Wick gauze wipe method consisting of 2 consecutive wipes) were obtained during harvesting of a strawberry field that had been previously sprayed with malathion. Various approaches were used that would provide useful information for a larger study. Results: Mean whole hand pre-wash and post wash malathion loading (n=6) was 6696 ng and 2469 ng, representing a 63% reduction of surface hand concentration, while mean digit pre-wash and post-wash malathion loading (n=6) was 1312 ng and 893 ng, for a 32% reduction, respectively. Consecutive wiping of contaminated skin did not indicate highly efficient removal with each wipe. Average decline was 47% for 2nd digit wipe and 37% for 3rd digit wipe. Conclusions: The EPA hand wiping method did not apparently efficiently remove the amount of malathion loading present either before or after washing, although when loading was low (as when wearing gloves) removal appeared complete. Perhaps alternative sampling methods are more efficient, but this would need to be similarly evaluated. Efficiency of skin sampling methods and comparison to other methods continues to be a significant need in exposure assessment characterization.
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.