Naslov
PRELIMINARNI REZULTATI O ONEČIŠĆENJU ZAGREBAČKIH KUĆNIH PRAŠINA POLIBROMIRANIM DIFENIL ETERIMA
(PRELIMINARY RESULTS ON POLYBROMINATED DIPHENYL ETHER CONTAMINATION STATUS IN ZAGREB HOUSE DUSTS)

Autori
Jagić, Karla ; Dvoršćak, Marija ; Klinčić, Darija

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
Knjiga sažetaka / Barišić, Dajana - Zagreb, 2021, 172-173

ISBN
978-953-6076-90-1

Skup
5. Simpozij studenata doktorskih studija PMF-a = 5th Faculty of Science PhD Student Symposium

Mjesto i datum
Zagreb, Hrvatska, 24.04.2021. - 25.04.2021

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Recenziran

Ključne riječi
PBDE, kućna prašina, izloženost, procjena rizika
(PBDEs, house dust, exposure, risk assessment)

Sažetak
Polybrominated diphenyl ethers (PBDEs) are organic compounds used as additive flame retardants in building and textile materials, and electrical and electronic equipment to prevent fire or slow down its spread. Because they do not form a chemical bond with the materials, they are easily released from household products and bind to organic particles of house dust [1]. In developed cities, people spend most of their time indoors, so inhalation and ingestion of dust is recognized as one of the main routes of human exposure to these compounds, in addition to dietary intake [2]. PBDEs are prone to bioaccumulation in the human body where they disrupt the hormonal balance and affect the endocrine system and neurobehavioral development [1]. Due to significant evidence of negative impact on human health, research into the levels of these compounds in house dust is of great importance. For this purpose, 20 samples of house dust were collected in Zagreb. Extraction of 7 PBDE congeners (BDE-28, BDE-47, BDE-99, BDE-100, BDE-153, BDE-154 and BDE-183) from 1 g of house dust was performed by microwave-assisted extraction (MAE) using 20 mL of solvent mixture n-hexane and acetone (1: 1, v/v) for 20 minutes at 80 °C. Analysis of the purified samples was performed on a gas chromatograph equipped with two capillary columns and two electron capture detectors. The sum of the mass fractions of the detected PBDE congeners in house dust samples ranged from 0.48 ng g-1 to 200.09 ng g-1 dust, and the most common congener was BDE-99. The BDE-183 congener was also detected in most samples, which indicates the presence of the thermolabile and photosensitive congener BDE- 209, one of the most common congeners in house dust samples and among whose degradation products is BDE-183 [1, 3, 4].

Izvorni jezik
Hrvatski

Znanstvena područja
Kemija, Interdisciplinarne prirodne znanosti, Javno zdravstvo i zdravstvena zaštita

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