Naslov
NICKEL, ARSENIC, CADMIUM AND LEAD IN PM1 FRACTION IN ZAGREB, CROATIA

Autori
Rinkovec, Jasmina ; Pehnec, Gordana ; Žužul, Silva

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

Izvornik
18th World Clean Air Congress / Incecik, Selahattin ; Toros, Huseyin ; Topcu, Sema ; Ozturk, Busra ; Duzgun, Cansu ; Kursun, Ilayda - Istanbul : TUNCAP and IUAPPA, 2019, 108-108

Skup
18th World Clean Air Congress (WCAC 2019)

Mjesto i datum
Istanbul, Turska, 23.09.2019. - 27.09.2019

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
ICP-MS ; metals ; microwave digestion ; particulate matter

Sažetak
Particulate matter (PM) is a mixture of organic and inorganic substances that emerge from a wide range of natural and anthropogenic sources. Fine aerosol particles have been found to play a key role in global climate change, pollution problems and health hazards. PM1 particles (particulate matter with an aerodynamic diameter of less than 1 µm) are characterized by a high surface-area-to-volume ratio, having great potential risks for negative effects on human health. However, as air quality standards in most countries refer to PM10 (particulate matter with an aerodynamic diameter of less than 10 µm) and PM2.5 (particulate matter with an aerodynamic diameter of less than 2.5 µm) particle fractions, PM1 particle fraction measurements are not part of routine monitoring. The metals released by anthropogenic activities, bounded to fine particulate matter, are bioaccumulative and can cause severe disturbance of ecosystems because of their influence on biochemical mechanisms, not to mention the potential risks for different health outcomes. In this study, 24-hour samples of PM1 were collected at an urban background location in Zagreb, the capital of Croatia, during 2011 and 2016, using a low-volume reference sampler. The collected samples of particulate matter were prepared in nitric acid using a high pressure microwave digestion system. Nickel, arsenic, cadmium and lead were determined by inductively coupled plasma mass spectrometry (ICP MS). The objective of the study was to determine mass concentrations of nickel, arsenic, cadmium and lead in PM1 fraction in 2011 and 2016 and to compare the obtained data sets. The mean annual values in 2011 were 1.58 ng m-3, 0.45 ng m-3, 0.21 ng m-3 and 5.55 ng m-3 for Ni, As, Cd and Pb, respectively, and 0.14 ng m-3, 0.23 ng m-3, 0.13 ng m-3, and 4.33 ng m-3 in 2016 for Ni, As, Cd and Pb, respectively. Statistically significant differences between the years were found for all metals with higher concentrations determined in 2011 compared to 2016. A statistically significant difference was found between seasons as well, except in winter and autumn for As and Pb (in 2011) and As, Ni and Cd (in 2016), and in spring and summer for Ni (in 2011) and Ni, Cd and Pb (in 2016). The highest values during the colder part of the year were found for all of the determined metals which was expected because of the adverse weather conditions that make it difficult to circulate air.

Izvorni jezik
Engleski

Znanstvena područja
Javno zdravstvo i zdravstvena zaštita

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