Wyniki wyszukiwania

1

Effect of O3 and antioxidants on yield of an egyptian cultivar of potato (Solanum tuberosum L.Cv. Kara)

100%

Hassan I. A.

Acta Physiologiae Plantarum

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2004

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tom 26

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nr 3 suppl.

2

Bioaccumulation of PAHs in Padina boryana alga collected from a contaminated site on the Red Sea, Saudi Arabia

63%

Quari H. A., Hassan I. A.

Polish Journal of Environmental Studies

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2017

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tom 26

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nr 1

We used the brown alga Padina boryanawas to determine polyromantic hydrocarbons (PAHs) bioaccumulation at a Jeddah City seashore. We also measured PAHs in the coastal water and in algal tissues using gas chromatography mass spectrometry (GC-MS). Acenaphthene (Ace) and dibenzo(a,h)anthrancene (dB(a,h)An) were the main PAHs in sea water (50.02 and 46.18 ng l⁻¹, respectively) and in algal tissues (64.67 and 72.45ng g⁻¹, respectively), respectively. The ratios of low molecular weight/high molecular weight hydrocarbons (1.76-1.44), fluoranthene/pyrene (1.57-1.52), and phenanthrene/anthracene (0.86-0.67) in seawater and algal tissues indicated the origin of PAHs to be mainly pyrogenic. The high concentrations of PAHs in algal tissues demonstrated the utility of using Padina boryana as a biomonitor of PAH contamination and bioavailability in the coastal waters.

3

Assessing roadside conditions and vehicular emissions using roadside lettuce plants

63%

Hassan I. A., Basahi J. M.

Polish Journal of Environmental Studies

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2013

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tom 22

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nr 2

Effects of the roadside atmosphere were investigated by placing pots of lettuce plants (Lactuca sativa L. cv Romaine) along a transect representing different levels of urbanization in Jeddah city, Saudi Arabia. Concentrations of elements in soil samples, foliage dust, and leaves of lettuce collected from rural, urban, suburban, residential, and industrial areas were analyzed for Ni, Pb, Co, Zn, V, Sb, As, Cu, Cr, K, Mg, Ca, Fe, Al, and Na. We found higher concentrations of these elements in the urban and industrial areas than in the other areas. These high concentrations could be attributed to traffic sources and depend on traffic and urbanization levels. Lettuce plants can be used as bioindicators to determine the effects of air pollution in the atmosphere of the city. It is necessary to monitor toxic metals for plants used for human consumption.

4

Total suspended particulate matter (TSP) and its associated heavy metals in atmosphere on the western coast of Saudi Arabia

39%

Basahi J. M., Ismail I. M., Hassan I. A., Almeelbi T., Haiba N. S., Hammam E.

Polish Journal of Environmental Studies

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2017

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tom 26

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nr 5

Total suspended particulates (TSP) in ambient air of three sites representing a gradient transect of urbanization along the western coast of Saudi Arabia were collected and their heavy metal contents were analyzed. The sampling was conducted at three sites simultaneously between 16 June to 7 July 2013, 17 September to 1 October 2013 (summer), and 23 December 2013 to 30 January 2014 (winter). The concentration of TSP was very high in ambient air of the two northern sites, ranging between 73 and 883 µg m⁻³ in the far northern site (Rayes, industrial) which is located south to Yanbu industrial city, and it was between 64 and 251 µg m⁻³ in the other site (Rabegh, urban). The southern site (Abhur, residential) showed relatively lower levels of TSP (ranging between 54 and 339 µg m⁻³). TSPs were also analyzed for 11 heavy metals (Al, Ca, Cu, Mg, Fe, Mn, Zn, Ni, Cr, K, and V) using x-ray fluorescence (XRF) spectrometry. The Fe, Km and Zn concentrations were higher than other elements and they differed significantly among the studied areas. The present study showed that the concentrations of measured elements decreased in the order of industrial > urban > residential.

Ograniczanie wyników

3 Polish Journal of Environmental Studies

1 Acta Physiologiae Plantarum

4 Hassan I. A.

2 Basahi J. M.

1 Almeelbi T.

1 Haiba N. S.

1 Hammam E.

1 Ismail I. M.

1 Quari H. A.

2 2017

1 2013

1 2004

Effect of O3 and antioxidants on yield of an egyptian cultivar of potato (Solanum tuberosum L.Cv. Kara)

Bioaccumulation of PAHs in Padina boryana alga collected from a contaminated site on the Red Sea, Saudi Arabia

Assessing roadside conditions and vehicular emissions using roadside lettuce plants

Total suspended particulate matter (TSP) and its associated heavy metals in atmosphere on the western coast of Saudi Arabia