Chamber studies were conducted to quantify hydroxyl radical (OH) yields and to determine whether water vapor affected OH formation in the reactions of ozone (O(3) ) with a single terpene, two-component terpene mixtures, and a commercial pine oil cleaning product (POC). Solid-phase microextraction fibers (SPME) were used for sampling the terpenes and the 2-butanone formation from the hydroxyl reaction with 2-butanol as a measure of OH yields. Analyses were performed using gas chromatography with flame ionization detection. The individual terpenes' OH yields from a-terpineol, limonene, and a-pinene were 64 +/- 8%, 64 +/- 6%, and 76 +/- 6%, respectively. OH yields were also measured from two-component mixtures of these terpenes. In each mixture that contained a-terpineol, the overall OH yield was lower than the modeled OH yields of the individual components that comprised the reaction mixture. Reactions of a commercial POC with O(3) were also studied to determine how the individual terpenes react in a complex mixture system, and an OH formation yield of 51 +/- 6% was measured. Relative humidity did not have a significant effect on the OH formation in the mixtures studied here. PRACTICAL IMPLICATIONS: The data presented here demonstrate that mixtures may react differently than the sum of their individual components. By investigating the chemistry of mixtures of chemicals in contrast to the chemistry of individual compounds, a better assessment can be made of the overall impact cleaning products have on indoor environments.
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.