A5082496352- Atmospheric chemistry and aerosols
- Air Quality and Health Impacts
- Atmospheric aerosols and clouds
- Air Quality Monitoring and Forecasting
- Atmospheric Ozone and Climate
- Microplastics and Plastic Pollution
- Heavy metals in environment
- Geochemistry and Geologic Mapping
- Radioactivity and Radon Measurements
- Urban Stormwater Management Solutions
- Oil, Gas, and Environmental Issues
- Impact of Light on Environment and Health
- Aeolian processes and effects
- Gas Sensing Nanomaterials and Sensors
- Toxic Organic Pollutants Impact
Qatar University
2018-2024
University of Ljubljana
2024
The Eastern Arabian Peninsula experiences elevated atmospheric particle loads due to anthropogenic emissions from the extraction and use of fossil fuels, as well natural dust events, resulting in significant aerosol optical thickness (AOT). However, despite region's significance, there is a lack studies focusing on microphysical characterization aerosols, leaving critical gaps understanding their radiative effects. This study examines properties particles over Qatar using more than one-year...
Discriminating the absorption coefficients of aerosol mineral dust and black carbon (BC) in different size fractions is a challenge because BC's large mass cross-section compared to dust. Ambient wavelength dependent (babs) supermicron submicron were determined with high time resolution. The measurements performed simultaneously using identical systems at an urban regional background site Qatar. At each site, taken by co-located Aethalometers, one virtual impactor (VI) other PM1 cyclone...
Elemental composition of airborne dust samples retained by internal filters air condition units (ACUs) was determined at 12 locations Doha city, state Qatar. Twenty-four elements: Al, Ca, Mg, Fe, Na, K, Ti, Zn, P, Sr, Mn, Ba, Cu, Cr, Ni, Pb, V, Mo, Li, Co, Sb, As, Cd, Be, were analysed ICP-OES technique after acid digestion the samples. The components reflect 20.6% total sample mass. Similar or lower concentration values have been found for and Fe compared to international context upper...
Polycyclic aromatic hydrocarbons (PAHs) bound in dust retained air-conditioning unit filters from 13 households Greater Doha, Qatar, were quantified using GC-MS spectrometry. The median concentrations of ∑16PAH and ∑7PAH 218.0 ng g-1 (± 125.3) 112.1 60.2) dry weight, respectively. Results show that except one sample, three- four-benzene-ring PAHs dominant all samples. Phenanthrene, anthracene, pyrene, benzene(a)anthracene, chrysene 12 samples with maximum 69.7 24.0), 92.9 28.1), 60.4 14.7),...
IoT-based Sensors networks play a pivotal role in improving air quality monitoring the Middle East. They provide real-time data, enabling precise tracking of pollution trends, informed decision-making, and increased public awareness. Air dust East region may leads to various health issues, particularly among vulnerable populations. help mitigate risks by offering timely accurate data. affects not only human but also region's ecosystems contributes climate change. The economic implications...
The atmospheric concentration of black carbon (BC) has paramount importance worldwide due to its role in global warming and adverse effect on human health. Only limited information is available about BC emission factors from the Arabian/Persian Gulf region despite presence significant sources including petrochemical industry maritime shipping. concentrations BC, nitrogen oxides (NO, NO2), ozone particulate matter (PM10) were monitored at a suburban location central residential Doha, Qatar...
Water-soluble and trace metal species in fine particulate matter (PM
Veerasingam, S., Ranjani, M., Mohamed Ali, E.A., Ahmed, Kallamullathil, R., Mohamed, N., Ahmed R.O., Mahfouz, and Sadooni, F.N., 2024. Risk assessment of microplastics in the Arabian Gulf: A meta-data analysis. In: Phillips, M.R.; Al-Naemi, Duarte, C.M. (eds.), Coastlines under Global Change: Proceedings from International Coastal Symposium (ICS) 2024 (Doha, Qatar). Journal Research, Special Issue No. 113, pp. 6-10. Charlotte (North Carolina), ISSN 0749-0208. Microplastics are tiny plastic...
Abstract Deteriorating visibility (VR) is an exacerbating problem in the Arabian Peninsula (AP) under prevailing natural and anthropogenic causes. The main objective of this paper to analyze long-term (1975–2023) trends fluctuations development haze for six countries including Kingdom Saudi Arabia (KSA), Iraq (IRQ), Qatar (QTR), Kuwait (KWT), United Arab Emirates (UAE), Oman (OMN). To comprehend time-based patterns across ME, we utilized Mann Kendall (MK) Modified (MMK) trend estimators both...
The earth’s atmosphere contains minute particles suspended within it. These atmospheric influence the earth's radiation budget through their ability to absorb and scatter radiation. Black carbon (BC) is a type of carbonaceous particle, characterized by highly absorbing solar Unlike sulfate sea-salt aerosols, black causes positive radiative forcing due its nature. With accumulation greenhouse gases in atmosphere, average global temperature increased 1.09°C (IPCC, 2021), between 1850-1900 last...