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Assessing roadside conditions and vehicular emissions using roadside lettuce plants

100%

Hassan I. A., Basahi J. M.

Polish Journal of Environmental Studies

2013

tom 22

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.

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

61%

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

Polish Journal of Environmental Studies

2017

tom 26

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

2 Polish Journal of Environmental Studies

2 Basahi J. M.

2 Hassan I. A.

1 Almeelbi T.

1 Haiba N. S.

1 Hammam E.

1 Ismail I. M.

1 2017

1 2013

Wyniki wyszukiwania

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