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

Nm, Rolli; Bi, K.S.; Sb, Gadi

doi:10.4172/2161-0525.1000319

Cited by 6 publications

(2 citation statements)

References 22 publications

(24 reference statements)

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“…Ali and Nasralla (1985) reported that vegetables grown adjacent to the busiest streets had elevated levels of Pb in the leaves and roots. Rolli et al (2015) found that the soil, grass and Caesalpinia leaves collected from roadsides likewise contained higher levels of lead. This is because lead compounds are major pollutants present in vehicular exhaust.…”

Section: Introductionmentioning

confidence: 94%

Levels of Lead in Selected Common Medicinal Plants Growing Along Roadside in Leyte

Ongy¹,

Belonias²

2017

SHJ

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Lead, as an important environmental pollutant from vehicular emission, is generally the largest source of heavy metal contamination in roadside ecosystems. Ten common Philippine medicinal plants namely: Allium fistulosum, Artemisia vulgaris, Basella alba, Ipomoea batatas, Euphorbia hirta, Plectranthus amboinicus, Mimosa pudica, Cymbopogon citratus, Portulaca oleracea, and Curcuma longa growing along the 45-km stretch of the Baybay – Ormoc national highway were investigated for Pb accumulation. The study showed Curcuma longa, Plectranthus amboinicus, and Artemisia vulgaris had the highest Pb content in the leaves. In the stem, Mimosa pudica had the lowest with 5.0 mg/kg while Plectranthu samboinicus had the highest with 9.5 mg/kg. In the roots, Pb was highest (18.0 mg/kg) in Allium fistulosum but low (below 10.0 mg/kg) in all the other species. Results imply that consumption of medicinal plants growing along busy roads may not be safe, especially those species that accumulate high levels of Pb. Long term usage of these plants may cause serious health problems

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Section: Introductionmentioning

confidence: 94%

Levels of Lead in Selected Common Medicinal Plants Growing Along Roadside in Leyte

Ongy¹,

Belonias²

2017

SHJ

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“…As a result of high anthropogenic load in cities, ecological problems have become especially sharp, particularly through the spread of chemical substances unfavourable for the environment and accumulation of excessive amounts of polluting compounds in the soil, water and living organisms which takes place in modern megapolises. The contribution made by autotransport to total atmospheric pollution in urbanized territories increases every year (Rolli et al, 2015). Vehicle emissions contain 1,000 polluting substances, but only 200 of them have been identified (Hooftman, 2016).…”

Section: Introductionmentioning

confidence: 99%

The effect of vehicle exhaust emissions on morphometric and physiological characteristics of Rhus typhina

2018

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Rhus typhina L. (Staghorn Sumac) is fast-growing woody species that reproduces by rhizomes and seeds. Because of its biological benefits, this deciduous member of the Anacardiaceae family has been introduced from its native habitats in the east of North America to urbanized landscapes of Ukraine. In this study we anаlyse changes in morphometric and physiological indicators of 12-year plants of this species in artificial phytocenoses near highways in Pavlograd, Ukraine. Experimental plots were placed at a distance from 25 to 130 meters from the road. The control group of plants was at a distance of 1500 m from the highways. We measured the length and thickness of the annual sprout, number of leaves on it, the content of chlorophyll in the leaves and accumulation of cadmium and lead in the leaf tissues. It was found that, compared to the plants in the relatively clean area, the greatest decreases in the length of the annual shoots of the trees in the plantations were for those which were at a distance of twenty five metres and forty meters from the traffic lanes of the highways. The thickness of the annual shoots of the trees in the plantations did not differ from plants in the clean zone. The number of leaves on a one-year annual sprout at a distance of twenty five meters and forty meters from the path of moving sources of pollution was significantly lower compared to control. We evaluated the impact of vehicle exhaust emissions on the assimilatory organs. We identified a negative effect of the anthropogenic pollutants on photosynthetic pigment content in leaves. The amount of chlorophyll a and chlorophyll b decreased with decreasing distance from the plantation to the road. Changes in the content of chlorophyll b had a clear pattern. The concentration of this pigment and the amount of chlorophyll a + b decreased compared with control in the 130 meter area. The amount of toxic heavy metals (lead and cadmium) in the tissues of the leaf was significantly higher than the control values on all plots. The strongest negative effects of phytotoxicants on susceptible plants occurred in plantations in the twenty-five-meter zone, which led to deterioration of the decorative quality of the plants.

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Investigation of metal concentrations in roadside soils and plants in urban areas of Amritsar, Punjab, India, under different traffic densities

Kaur

Bhatti

Katnoria

et al. 2021

Environ Monit Assess

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

Cited by 6 publications

References 22 publications

Levels of Lead in Selected Common Medicinal Plants Growing Along Roadside in Leyte

Levels of Lead in Selected Common Medicinal Plants Growing Along Roadside in Leyte

The effect of vehicle exhaust emissions on morphometric and physiological characteristics of Rhus typhina

Investigation of metal concentrations in roadside soils and plants in urban areas of Amritsar, Punjab, India, under different traffic densities

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