Lead levels in roadside soils and vegetation of Damascus city

Othman, I.; Al‐Oudat, M.; Al-Masri, M.S.

doi:10.1016/s0048-9697(97)00243-x

Cited by 51 publications

(30 citation statements)

References 11 publications

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“…The wind speeds at sites NQ and DX were almost the same, but the height of the roadbed at site DX was higher than that at site NQ, resulting in a greater enrichment of traffic-related metals at site DX. Although previous studies have found that other factors such as pH, organic material, vegetation cover and precipitation can affect the enrichment of heavy metals in soils (Othman et al, 1997;Akbar et al, 2006;Hagler et al, 2012;Zhang et al, 2012), there was no significant relationship between these factors and the enrichment of traffic-related metals in roadside soils in this study (Table 7).…”

Section: Tablecontrasting

confidence: 71%

Identification of traffic-related metals and the effects of different environments on their enrichment in roadside soils along the Qinghai–Tibet highway

Zhang

Wang

Zhang

et al. 2015

Science of The Total Environment

147

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• Cr, Zn, Cu, As, Cd, and Pb in soils along the highway are related to the traffic.• There are three distribution patterns of the traffic-related metals in soils.• Regional differences had significant relationship with the enrichment levels.• Cd was the prior metal and the TTH was the key area for soil environment monitoring. The road transportation could affect roadside soils environment detrimentally, including heavy metal enrichment. In order to identify and evaluate the enrichment of heavy metals resulted from road transportation on the Tibetan Plateau, the 11 heavy metals (V, Cr, Co, Ni, Cu, Zn, As, Cd, Rb, Pb and Tl) in the topsoil (0-10 cm depth) from four sites along the Qinghai-Tibet highway were discussed in this study. Our results indicate that heavy metals such as Cr, Cu, Zn, As, Cd and Pb are related to road transportation. The content of most of these heavy metals in roadside soils decreased exponentially with the distance from the road, as did some of the Nemero Synthesis Indexes (PN values). The contamination factor for the traffic-related metals ranged from 0.56 (no pollution) to 5.67 (considerable pollution) and the Nemero Synthesis Indexes of these heavy metals ranged from 0.80 (no pollution) to 4.49 (severe pollution). Cd was of priority concern as it had the highest contamination factor. The highest PN value for these traffic-related heavy metals was found in soils at site TTH (alpine steppe). Although transportation contributed to the high contents of these traffic-related metals in roadside environments, regional differences such as wind and the terrain also had significant relationship with their enrichment in these roadside soils. The roadside distance at which there is a potential risk to livestock and wildlife from the contamination of soils by heavy metals should be determined scientifically along the Qinghai-Tibet highway, based on the different natural environments found in the region. a b s t r a c t a r t i c l e i n f o

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Section: Tablecontrasting

confidence: 71%

Identification of traffic-related metals and the effects of different environments on their enrichment in roadside soils along the Qinghai–Tibet highway

Zhang

Wang

Zhang

et al. 2015

Science of The Total Environment

147

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“…The unexpected high Pb concentration obtained southeast of the factory at distance of about 250 m (Figure 4) might be connected with local activities such as spillage of leaded fuel and oil from mechanic workshop and block industry. Furthermore, high Pb levels have also been reported in roadside soil along sampling points with heavy vehicular emissions (especially patronizing the mechanic and block industry) by various researchers (Othman et al, 1997;Al-Chalabi and Hawker, 2000;Onianwa, 2001;Olukanni and Adeoye, 2012;Ubwa et al, 2013;Olayiwola et al, 2013). Lead exposure causes health effects which include headache, vomiting, concentration and memory problems (mental retardation), high blood pressure, fertility problems in men, miscarriage in women, developmental delay and damage to nervous system in children (Agusa, 2006;Needleman, 1990).…”

Section: Resultsmentioning

confidence: 94%

Assessment of some heavy metals in the surrounding soils of an automobile battery factory in Ibadan, Nigeria

Oyeleke¹,

Abiodun²,

Salako³

et al. 2016

Afr. J. Environ. Sci. Technol.

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/kg), respectively. The mean concentration of Pb was far above (four times higher than) the normal crustal average for soils while the other heavy metals were below the normal background level. The concentration of Pb is also the highest at the distance closest to the factory which indicate that Pb is the major heavy metal impacted on soils by the company which elevate the normal background level and thereby contaminate the soils and make it unfit for agricultural purposes as plant take up the leached metals and ultimately find its way into animals and human body through the food chain.

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“…The same meteorological conditions affect the concentration of same contaminants in the roadside soil [2]. The traffic density determines the lead level in soil and vegetation [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Metal Accumulation Profile in Roadside Soils, Grass and Caesalpinia Plant Leaves: Bioindicators

Nm¹,

Bi²,

Sb³

2015

J Environ Anal Toxicol

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Lead levels in roadside soils and vegetation of Damascus city

Cited by 51 publications

References 11 publications

Identification of traffic-related metals and the effects of different environments on their enrichment in roadside soils along the Qinghai–Tibet highway

Identification of traffic-related metals and the effects of different environments on their enrichment in roadside soils along the Qinghai–Tibet highway

Assessment of some heavy metals in the surrounding soils of an automobile battery factory in Ibadan, Nigeria

Metal Accumulation Profile in Roadside Soils, Grass and Caesalpinia Plant Leaves: Bioindicators

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