In the article "Scented Products Emit a Bouquet of VOCs," Potera (2011) gave a broad overview of the work of Steinemann et al. (2010) regarding the quantification of volatile organic compounds (VOCs) from fragranced products. Unfortunately, crucial facts were omitted about the materials cited and the use of alternative substances. Potera (2011) quoted Steinemann et al. (2010), noting that some of the VOCs detected "are classified as toxic or hazardous by federal laws" and "a single fragrance in a product can . . . react with ozone in ambient air to form dangerous secondary pollutants." Potera stated that limonene reacts with ozone to form formaldehyde but failed to mention that both limonene and pinene are naturally occurring materials found in citrus fruits and pine trees, respectively (Wei and Shibamoto 2007).
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