Simulated use and wash-off release of decamethylcyclopentasiloxane used in anti-perspirants

Gouin, Todd; Egmond, Roger van; Sparham, Chris; Hastie, Colin; Chowdhury, Namrata

doi:10.1016/j.chemosphere.2012.10.042

Cited by 31 publications

(25 citation statements)

References 18 publications

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“…This finding is consistent with previously reported temporal evaporation loss of D5 after the application of PCPs. 28,29 In contrast, the average per-person ER of CO 2 was 21 ± 3 g h…”

Section: ■ Methodsmentioning

confidence: 97%

Siloxanes Are the Most Abundant Volatile Organic Compound Emitted from Engineering Students in a Classroom

Tang

Misztal

Nazaroff

et al. 2015

Environ. Sci. Technol. Lett.

140

141

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Direct human emissions are known to contribute volatile organic compounds (VOCs) to indoor air via various mechanisms. However, few measurements that determine the emissions of a full suite of occupant-associated VOCs are available. We measured occupant-related VOC emissions from engineering students in a classroom using a proton-transfer-reaction time-of-flight mass spectrometer (PTR-TOF-MS). The dominant compound emitted was a cyclic volatile methylsiloxane (cVMS), decamethylcyclopentasiloxane (D5), which is a major inactive ingredient in some personal care products such as antiperspirants. D5 was found to contribute ∼30% of the total indoor VOC mass concentration as measured by the PTR-TOF-MS. Octamethylcyclotetrasiloxane (D4) and dodecamethylcyclohexasiloxane (D6) were detected at abundances that were 1−2 orders of magnitude lower. The per-person emission rate of these three cVMS declined monotonically from morning into the afternoon, consistent with expectations for emissions from daily morning application of personal care products.

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“…This finding is consistent with previously reported temporal evaporation loss of D5 after the application of PCPs. 28,29 In contrast, the average per-person ER of CO 2 was 21 ± 3 g h…”

Section: ■ Methodsmentioning

confidence: 97%

Siloxanes Are the Most Abundant Volatile Organic Compound Emitted from Engineering Students in a Classroom

Tang

Misztal

Nazaroff

et al. 2015

Environ. Sci. Technol. Lett.

140

141

View full text Add to dashboard Cite

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“…They are used in several industrial and domestic applications, including as antifoaming agents, in automotive care products as coatings, in construction as sealants, and in cosmetics and personal care products (shampoos, lotions, cosmetics, hair care products, deodorants, antiperspirants, nail polishes, skin cleaners and sanitizers) [18][19][20][21]. Several studies [22][23][24][25][26][27][28] assessed the siloxane concentrations in different household products, showing values ranging from 5 to 700 mg/g (wet weight). [29,30].…”

Section: Industrial and Domestic Uses Of Silicones And Siloxanesmentioning

confidence: 99%

Understanding the effects of the origin, occurrence, monitoring, control, fate and removal of siloxanes on the energetic valorization of sewage biogas—A review

Arespacochaga

Valderrama

Raich-Montiu

et al. 2015

Renewable and Sustainable Energy Reviews

101

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“…In respect of the latter observation, a number of articles on D5 and related siloxanes have been published in the literature since the BoR provided its opinions and report. Many of these articles relate to studies done by Environment Canada (Velicogna et al ; Alaee et al ; Norwood et al ; Parrott et al ; Wang, Norwood et al ; Wang, Steer et al ), by industry (Xu and Kropscott , , ; Gouin et al ; Kim et al ; Mackay et al , ; Montemayor et al ; van Egmond et al ; Woodburn et al ; Xu and Wania ; Kozerski et al ; Seston et al ; Xu et al ), and others (Borgå, Fjeld et al ; Borgå, Kidd et al ; Burkhard et al , , ; Conder et al ; Redman et al ; Borgå et al ; Kierkegaard et al , ; Kierkegaard and McLachlan ; Krogseth et al ; MacLeod et al ; Hong et al ; McGoldrick et al ). That this considerable quantity of information has become available to the public adds to the general understanding of the physical, environmental, chemical, and biological properties of the cyclic siloxanes and moves science and regulation forward.…”

Section: Lessons Learnedmentioning

confidence: 99%

The case for establishing a board of review for resolving environmental issues: The science court in Canada

Giesy

Solomon

Kacew

et al. 2016

Integr Environ Assess Manag

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Technology and scientific advancements are accelerating changes in society at a pace that is challenging the abilities of government regulatory agencies and legal courts to understand the benefits and costs of these changes to humans, wildlife, and their environments. The social, economic, and political facets of concern, such as the potential effects of chemicals, complicate the preparation of regulatory standards and practices intended to safeguard the public. Court judges and attorneys and, in some cases, lay juries are tasked with interpreting the data and implications underlying these new advancements, often without the technical background necessary to understand complex subjects and subsequently make informed decisions. Here, we describe the scientific-quasi-judicial process adopted in Canada under the Canadian Environmental Protection Act, 1999, which could serve as a model for resolving conflicts between regulatory agencies and the regulated community. An example and process and lessons learned from the first Board of Review, which was for decamethylcyclopentasiloxane (D5; CAS# 541-02-06), are provided. Notable among these lessons are: 1) the need to apply state-of-the-science insights into the regulatory process, 2) to encourage agencies to continuously review and update their assessment processes, criteria, and models, and 3) provide these processes in guidance documents that are transparent and available to all stakeholders and generally foster closer cooperation between regulators, the academic community, industry, and nongovernment organizations (NGOs). Integr Environ Assess Manag 2016;12:572-579. © 2015 SETAC.

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Simulated use and wash-off release of decamethylcyclopentasiloxane used in anti-perspirants

Cited by 31 publications

References 18 publications

Siloxanes Are the Most Abundant Volatile Organic Compound Emitted from Engineering Students in a Classroom

Siloxanes Are the Most Abundant Volatile Organic Compound Emitted from Engineering Students in a Classroom

Understanding the effects of the origin, occurrence, monitoring, control, fate and removal of siloxanes on the energetic valorization of sewage biogas—A review

The case for establishing a board of review for resolving environmental issues: The science court in Canada

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