Journals / Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi / 2021 / Cilt: 21 - Sayı: 2

Determination of Linear and Cyclic Methyl Siloxane Concentrations in Pool Water and Pool Indoor Air, Methyl Siloxane Exposure of Swimmers

Havuz Suyu ve Havuz İç Ortamında Doğrusal ve Halkalı Metil SiloksanKonsantrasyonlarının Belirlenmesi, Yüzücülerin Metil SiloksanMaruziyeti

Pages
337–350
Publication Date
2022-10-12
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The transport mechanism of the MScompounds showed that the siloxane compounds have moved from the pool water to the indoor air.The daily exposure dose of people to D5 by inhalation swimming pool indoor air is 1.30- 0.68 and 0.67ng/kg-body weight/day for children, adolescents and adults.

📌 3 Key Takeaways

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Objective & Hypothesis:Methyl siloxanes (MSs) are used in personal care and cleaning products.
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Key Findings & Data:In the study, the levels of 4 cyclic (C) (D3, D4, D5, D6) and 3 linear (L) (L3, L4, L5) MS compound in thepool water and indoor air were determined in the semi-olympic swimming pool.
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Conclusion & Impact:The transport mechanism of the MScompounds showed that the siloxane compounds have moved from the pool water to the indoor air.The daily exposure dose of people to D5 by inhalation swimming pool indoor air is 1.30- 0.68 and 0.67ng/kg-body weight/day for children, adolescents and adults.
🔬Design:Lab & Field Experiment
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Methyl siloxanes (MSs) are used in personal care and cleaning products. The use of the products inindoor causes the presence of compounds in the indoor air. Due to the different inhalation functions ofchildren, adolescents and adults during the exercises in indoor swimming pools, the pollutants to beexposed in the indoor environment and the concentration of these pollutants become more important. In the study, the levels of 4 cyclic (C) (D3, D4, D5, D6) and 3 linear (L) (L3, L4, L5) MS compound in thepool water and indoor air were determined in the semi-olympic swimming pool. In addition, exposuredoses to siloxanes by inhalation have been determined for children, adolescents and adults based onconcentrations in indoor air. Pool water LMS concentrations ranged from 0.58 - 7.58 ng/L, CMSconcentration between 18.7-163.8 ng/L. In pool water D5 (16.06 ± 5.32 ng/L) and D6 (17.96 ± 26.19ng/L) are the most dominant CMS compounds. The total concentration of LMS compounds detected inthe indoor air of the swimming pool ranged from 0.22 to 0.67 ng/$m^3$ , and the total concentrations ofCMS compounds ranged from 13.17 to 130.75 ng/$m^3$ . In indoor, D5 (32.59 ± 26.28 ng/$m^3$ ) and D3 (18.78± 19.08 ng/$m^3$ ) are the most dominant MS, respectively. The transport mechanism of the MScompounds showed that the siloxane compounds have moved from the pool water to the indoor air.The daily exposure dose of people to D5 by inhalation swimming pool indoor air is 1.30- 0.68 and 0.67ng/kg-body weight/day for children, adolescents and adults.

Özet

Metil siloksanlar (MS’lar) kişisel bakım ve temizlik ürünlerinde kullanılmaktadır. Ürünlerin büyük oranda kapalı alanlarda kullanılması, iç ortamda bu bileşiklerin tespit edilmesine neden olmaktadır. Kapalı yüzme havuzlarında yapılan antrenmanlar sırasında çocuklar, gençler ve yetişkinlerin normalden farklı olan solunum fonksiyonları nedeniyle, iç ortamda maruz kalacakları kirleticiler ve bu kirleticilerin miktarları daha da önem kazanmaktadır. Çalışmada yarı olimpik yüzme havuzunun bulunduğu kapalı alanda 4 halkalı (H) (D3, D4, D5, D6) ve 3 doğrusal (D) (L3, L4, L5) metil siloksan bileşiğinin havuz suyunda ve iç ortam havasında seviyeleri belirlenmiştir. Ayrıca inhalasyon yoluyla siloksanlara maruz kalma dozları, iç ortam havasındaki konsantrasyonlara dayalı olarak çocuklar, gençler ve yetişkinler için belirlenmiştir. Havuz suyu DMS konsantrasyonları 0,58 - 7,58 ng/L, HMS konsantrasyonu 18,7 - 163,8 ng/L arasındadır. Havuz suyunda D5 (16,06 ± 5,32 ng/L) ve D6 (17,96 ± 26,19 ng/L) en baskın HMS bileşikleridir. Yüzme havuzunun bulunduğu iç ortamda tespit edilen DMS bileşiklerinin toplam konsantrasyonu 0,22 ile 0,67 ng/$m^3$, HMS bileşiklerinin toplam konsantrasyonları 13,17 ile 130,75 ng/$m^3$arasında değişmiştir. İç ortam örneklerinde sırasıyla D5 (32,59 ± 26,28 ng/$m^3$) ve D3 (18,78 ± 19,08 ng/$m^3$) en baskın metil siloksan bileşiklerdir. İncelenen metil siloksan bileşiklerinin hava ve su arasındaki taşınım mekanizması siloksan bileşiklerinin havuz suyundan iç ortam havasına doğru bir taşınım yönüne sahip olduğunu göstermiştir. Yarı olimpik yüzme havuzu iç ortam havasını soluma yoluyla D5’e günlük maruz kalma dozu çocuklar, gençler ve yetişkinler için sırasıyla 1,30 - 0,68 ve 0,67 ng/kg-vücut ağırlığı/gün’dür.

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Cite This Article

DUMANOĞLU, Y., GÜR, E. (2022). Determination of Linear and Cyclic Methyl Siloxane Concentrations in Pool Water and Pool Indoor Air, Methyl Siloxane Exposure of Swimmers. Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi, Cilt: 21 - Sayı: 2, 337–350. https://ajindex.com/articles/429706

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