Browsing by Author "Yigiterhan, Oguz"
Now showing items 1-10 of 10
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Baseline concentrations and distributions of Polycyclic Aromatic Hydrocarbons in surface sediments from the Qatar marine environment
Mustafa Hassan, Hassan; B. Castillo, Azenith; Yigiterhan, Oguz; Ali Elobaid, Elnaiem; Al-Obaidly, Abdulrahman; Al-Ansari, Ebrahim; Philip Obbard, Jeffrey... more authors ... less authors ( Elsevier , 2017 , Article)Coastal sediments in marine waters of Qatar have the potential of being contaminated by Polycyclic Aromatic Hydrocarbons (PAHs) due to extensive petroleum exploration and transportation activities within Qatar's ... -
Elemental distributions in the marine sediments off Doha, Qatar: role of urbanisation and coastal dynamics
Hasna, Varis Mohammed; Aboobacker, Valliyil Mohammed; Dib, Samah; Izza, Ayisha; Yigiterhan, Oguz; Al-Ansari, Ebrahim M.A.S.; Vethamony, Ponnumony... more authors ... less authors ( Springer Science and Business Media Deutschland GmbH , 2024 , Article)This research investigates the present status and decadal variability of element distributions in the marine sediments off Doha, on the east coast of Qatar. Twenty elements were considered from 11 sediment sampling stations ... -
Excess pCO2 and carbonate system geochemistry in surface seawater of the exclusive economic zone of Qatar (Arabian Gulf)
Connor, Izumi; Al-Thani, Jassem A.; Yigiterhan, Oguz; Al-Ansari, Ebrahim Mohd A.S.; Vethamony, Ponnumony; Sorino, Caesar Flonasca; Anderson, Daniel B.; Murray, James W.... more authors ... less authors ( Elsevier , 2022 , Article)Dissolved inorganic carbon (DIC) and total alkalinity (TA) were sampled in December 2018 and May 2019 in the Exclusive Economic Zone (EEZ) of Qatar in the Arabian Gulf. pCO2, pH and CO32− were calculated from DIC and TA. ... -
Mercury accumulation in Lethrinus nebulosus from the marine waters of the Qatar EEZ
Al-Ansari, Ebrahim M.A.S.; Abdel-Moati, Mohamed A.R.; Yigiterhan, Oguz; Al-Maslamani, Ibrahim; Soliman, Yousria; Rowe, Gilbert T.; Wade, Terry L.; Al-Shaikh, Ismail M.; Helmi, Ahmed; Kuklyte, Ligita; Chatting, Mark; Al-Yafei, Mehsin A. Al-Ansi... more authors ... less authors ( Elsevier , 2017 , Article)Total mercury (THg) and methylmercury (MeHg) were recorded in the commercial demersal fish Lethrinus nebulosus, caught from six locations in Qatar EEZ (Exclusive Economic Zone). Concentrations of THg decreased in the ... -
Methylmercury bioaccumulation among different food chain levels in the EEZ of Qatar (Arabian Gulf)
Hadil, Elsayed; Yigiterhan, Oguz; Al-Ansari, Ebrahim M.A.S.; Al-Ashwel, Aisha A.; Elezz, Ahmed A.; Al-Maslamani, Ibrahim A.... more authors ... less authors ( Elsevier , 2020 , Article)Methylmercury (MeHg) concentrations in three different species from different trophic levels with different amounts of Hg exposures were determined for the first time in the EEZ of Qatar. Sampling was conducted during ... -
Physical drivers of chlorophyll and nutrients variability in the Southern-Central Arabian Gulf
Jassem A., Al-Thani; Soliman, Yousria; Al-Maslamani, Ibrahim A.; Yigiterhan, Oguz; Al-Ansari, Ebrahim M.A.S. ( Academic Press , 2023 , Article)The southern-central Arabian Gulf demonstrates a poor understanding of nutrients and chlorophyll dynamics in physical-biogeochemical settings. Here, using data of chlorophyll, nutrients and hydrographic parameters collected ... -
Polycyclic aromatic hydrocarbons in dust from the indoor environment of Qatar
Kotb, Mohamed M.; Alfoldy, Balint; Yigiterhan, Oguz; Elnaiem, A.E.; Hassan, Hassan M.; Obbard, Jeffrey P.... more authors ... less authors ( Hamad Bin Khalifa University Press , 2016 , Conference)Polyaromatic Hydrocarbons (PAHs) concentrations in dust trapped on air conditioning unit filters operating in residential and workplace locations in Doha, Qatar were sampled and measured. Fourteen samples were collected ... -
Radioactivity levels in the marine environment along the Exclusive Economic Zone (EEZ) of Qatar
Al-Qaradawi, Ilham; Abdel-Moati, Mohamed; Al-Yafei, Mohsin Al-Ansi; Al-Ansari, Ebrahim; Al-Maslamani, Ibrahim; Holm, Elis; Al-Shaikh, Ismail; Mauring, Alexander; Pinto, Primal V.; Abdulmalik, Dana; Amir, Amina; Miller, Mark; Yigiterhan, Oguz; Persson, Bertil... more authors ... less authors ( Elsevier , 2015 , Article)A study on 137Cs, 40K, 226Ra, 228Ra, and 238U was carried out along the EEZ of Qatar. Results serve as the first ever baseline data. The level of 137Cs (mean value 1.6 ± 0.4 Bq m 3) in water filters was found to be in the ... -
Target gastropods for standardizing the monitoring of tar mat contamination in the Arabian Gulf
Bruno Welter, Giraldes; Al-Thani, Jassem Abdulaziz K.H.; Dib, Samah; Engmann, Amanda; Alsaadi, Hamood Abdulla; Vethamony, Ponnumony; Alatalo, Juha Mikael; Yigiterhan, Oguz... more authors ... less authors ( Elsevier , 2022 , Article)This study proposes a standardization process for the monitoring the level of tar mat contamination in the Arabian Gulf. In the study, we selected target gastropod species and evaluated the ecological and ecotoxicological ... -
Trace element composition of size-fractionated suspended particulate matter samples from the Qatari Exclusive Economic Zone of the Arabian Gulf: the role of atmospheric dust
Yigiterhan, Oguz; Mohd Al-Ansari, Ebrahim; Nelson, Alex; Alaa Abdel-Moati, Mohamed; Turner, Jesse; Abdulla Alsaadi, Hamood; Paul, Barbara; Abdullatif Al-Maslamani, Ibrahim; Abdulla Al-Ansi Al-Yafei, Mehsin; W. Murray, James... more authors ... less authors ( Copernicus Publications , 2020 , Article)We analyzed net-tow samples of natural assemblages of plankton, and associated particulate matter, from the Exclusive Economic Zone (EEZ) of Qatar in the Arabian Gulf. Size-fractionated suspended particles were ...