کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6327421 | 1619766 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Occurrence of cyclic and linear siloxanes in indoor air from Albany, New York, USA, and its implications for inhalation exposure
ترجمه فارسی عنوان
ظهور سیلوکسان های سیلیکون و خطی در هوای داخل از آلبانی، نیویورک، ایالات متحده آمریکا، و پیامدهای آن برای قرار گرفتن در معرض استنشاق
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
چکیده انگلیسی
Cyclic and linear siloxanes are used in a wide variety of household and consumer products. Nevertheless, very few studies have reported the occurrence of these compounds in indoor air or inhalation exposure to these compounds. In this study, five cyclic (D3-D7) and nine linear siloxanes (L3-L11) were determined in 60 indoor air samples collected in Albany, New York, USA. The mean concentrations of individual siloxanes in particulate and vapor phases ranged from < 12 μg gâ 1 (for octamethyltrisiloxane [L3], decamethyltetrasiloxane [L4]) to 2420 μg gâ 1 (for decamethylcyclopentasiloxane [D5]) and from 1.05 ng mâ 3 to 543 ng mâ 3, respectively. The mean concentrations of individual siloxanes in combined particulate and vapor phases of bulk indoor air ranged from 1.41 ng mâ 3 (for L4) to 721 ng mâ 3 (for D5). Cyclic siloxanes hexamethylcyclotrisiloxane (D3), octamethylcyclotetrasiloxane (D4), D5, dodecamethylcyclohexasiloxane (D6), and octadecamethylcycloheptasiloxane (D7) were found in all indoor air samples. The mean concentrations of total siloxanes (i.e., sum of cyclic and linear siloxanes) ranged from 249 ng mâ 3 in laboratories to 6210 ng mâ 3 in salons, with an overall mean concentration of 1470 ng mâ 3 in bulk indoor air samples. The calculated mean daily inhalation exposure doses of total siloxanes (sum of 14 siloxanes) for infants, toddlers, children, teenagers, and adults were 3.18, 1.59, 0.76, 0.34, and 0.27 μ g/kg-bw/day, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Science of The Total Environment - Volume 511, 1 April 2015, Pages 138-144
Journal: Science of The Total Environment - Volume 511, 1 April 2015, Pages 138-144
نویسندگان
Tri Manh Tran, Kurunthachalam Kannan,