Effect of air pollutants on some heavy metals and biochemical constituents of leaves of some plants at Bangalore city: A case study

Rapid urbanization in India has necessitated for undertaking remedial measures to minimize the alarming air pollution levels and consequent health effects. Promotion of vegetation that is tolerant to air pollutants is considered as an ecological sustainable strategy for mitigation of ill effects of...

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Bibliographic Details
Published in:Journal of applied and natural science 2019, Vol.11 (1), p.66-75
Main Authors: B T, Manjunath, Reddy, Jayaram
Format: Article
Language:English
Subjects:
Air pollution
Air pollution effects
Air pollution measurements
Antioxidants
Catalase
Chromium
Copper
Ecological effects
Gallic acid
Heavy metals
Lead
Leaves
Lipid peroxidation
Lipids
Malondialdehyde
Mitigation
Oxidative stress
Peroxidation
Phenolic compounds
Phenols
Plants
Pollutants
Polluted environments
Pollution control
Pollution levels
Proline
Proteins
Statistical analysis
Urbanization
Zinc
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Summary:Rapid urbanization in India has necessitated for undertaking remedial measures to minimize the alarming air pollution levels and consequent health effects. Promotion of vegetation that is tolerant to air pollutants is considered as an ecological sustainable strategy for mitigation of ill effects of particulate matters. In this regard the levels of four heavy metals viz. zinc (Zn) , lead (Pb), copper (Cu) and chromium (Cr) and its effects on antioxidants levels (Catalase activity), phytochemicals (Protein, Proline, Gallic acid)  and lipid peroxidation were studied in six commonly growing plants- O.sanctum, L. aspera, L.camara, V. rosea, B. spectabilis and R. communis from polluted (Zone I) and unpolluted (Zone 2) environments of Bangalore. Mean levels of heavy metals were comparatively higher in plants from polluted environments. Mean levels of Total protein (6.57±1.71 v/s 8.35±1.27 mg/g), gallic acid (15.79 ± 22.51 v/s 22.95 ± 25.66mg/g) and Catalase activity (66.72±17.95 v/s 78.94± 15.24 mU/g) was comparatively decreased in plants from polluted sites compared to non polluted control sites. Mean Proline (3.11±0.46 v/s 2.63±0.66 mg/g) and Malonaldehyde (19.07±13.86 v/s 16.62±13.49 nmol/g) levels, indicators of oxidative stress, was comparatively increased in plants from polluted sites. Positive correlation of lipid peroxidation in leaves was observed with heavy metals copper (r=0.961, P
ISSN:0974-9411
2231-5209
DOI:10.31018/jans.v11i1.1961