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Rajesh Kumar Sharma

Bio: Rajesh Kumar Sharma is an academic researcher from Banaras Hindu University. The author has contributed to research in topics: Medicine & Biology. The author has an hindex of 17, co-authored 62 publications receiving 3677 citations.
Topics: Medicine, Biology, Population, Ascorbic acid, Cadmium


Papers
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Journal ArticleDOI
TL;DR: The study concludes that the use of treated and untreated wastewater for irrigation has increased the contamination of Cd, Pb, and Ni in edible portion of vegetables causing potential health risk in the long term from this practice.

909 citations

Journal ArticleDOI
TL;DR: The study suggests that wastewater irrigation led to accumulation of heavy metals in food stuff causing potential health risks to consumers, and heavy metal contamination in the wastewater irrigated site presented a significant threat of negative impact on human health.

728 citations

Journal Article
TL;DR: Heavy metals constitute a very heterogeneous group of elements widely varied in their chemical properties and biological functions and cause reductions in plant growth, dry matter accumulation and yield.
Abstract: Heavy metals constitute a very heterogeneous group of elements widely varied in their chemical properties and biological functions. Heavy metals are kept under environmental pollutant category due to their toxic effects on plants, animals and human being. Heavy metal contamination of soil results from anthropogenic as well as natural activities. Anthropogenic activities such as mining, smelting operation and agriculture have locally increased the levels of heavy metals such as Cd, Co, Cr, Pb, As and Ni in soil up to dangerous levels. Heavy metals are persistent in nature, therefore get accumulated in soils and plants. Heavy metals interfere with physiological activities of plants such as photosynthesis, gaseous exchange and nutrient absorption, and cause reductions in plant growth, dry matter accumulation and yield. Heavy metals also interfere with the levels of antioxidants in plants, and reduce the nutritive value of the produce. Dietary intake of many heavy metals through consumption of plants has long term detrimental effects on human health.

403 citations

Journal ArticleDOI
TL;DR: The study concludes that the transportation and marketing systems of vegetables play a significant role in elevating the contaminant levels of heavy metals which may pose a threat to the quality of the vegetables with consequences for the health of the consumers of locally produced foodstuffs.

351 citations

Journal ArticleDOI
TL;DR: The study concludes that atmospheric depositions can elevate the levels of heavy metals in vegetables during marketing having potential health hazards to consumers.

338 citations


Cited by
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Journal ArticleDOI
TL;DR: Air pollution has both acute and chronic effects on human health, affecting a number of different systems and organs, and ranges from minor upper respiratory irritation to chronic respiratory and heart disease, lung cancer, acute respiratory infections in children and chronic bronchitis in adults.

3,000 citations

Journal ArticleDOI
TL;DR: It is highlighted that both adults and children consuming food crops grown in wastewater-irrigated soils ingest significant amount of the metals studied, however, health risk index values of less than 1 indicate a relative absence of health risks associated with the ingestion of contaminated vegetables.

1,951 citations

Journal ArticleDOI
Ming Hua1, Shujuan Zhang1, Bingcai Pan1, Weiming Zhang1, Lu Lv1, Quanxing Zhang1 
TL;DR: The present review mainly focuses on NMOs' preparation, their physicochemical properties, adsorption characteristics and mechanism, as well as their application in heavy metal removal.

1,828 citations

Journal ArticleDOI
TL;DR: Molecular understanding of plant metal accumulation has numerous biotechnological implications also, the long term effects of which might not be yet known.
Abstract: Heavy metals are natural constituents of the earth's crust, but indiscriminate human activities have drastically altered their geochemical cycles and biochemical balance. This results in accumulation of metals in plant parts having secondary metabolites, which is responsible for a particular pharmacological activity. Prolonged exposure to heavy metals such as cadmium, copper, lead, nickel, and zinc can cause deleterious health effects in humans. Molecular understanding of plant metal accumulation has numerous biotechnological implications also, the long term effects of which might not be yet known.

1,018 citations

Journal ArticleDOI
TL;DR: In this article, a comprehensive assessment indicates that chemical stabilization serves as a temporary soil remediation technique, phytoremediation needs improvement in efficiency, surface capping and landfilling are applicable to small, serious-contamination sites, while solidification and vitrification are the last remediation option.

966 citations