Book ChapterDOI
Arsenic and Heavy Metal (Cadmium, Lead, Mercury and Nickel) Contamination in Plant-Based Foods
Shahid Hussain,Zed Rengel,Muhammad Qaswar,Mamoona Amir,Muhammad Zafar-ul-Hye +4 more
- pp 447-490
Reads0
Chats0
TLDR
In this paper, the authors reviewed the reported contamination levels of arsenic (As), cadmium (Cd), lead (Pb), mercury (Hg) and nickel (Ni) in cereals, vegetables, fruits, cereals and pulses.Abstract:
Plant-based foods satisfy more than 70% of the human energy and nutrition requirements. However, such foods may be contaminated by heavy metal(loid)s. The dietary exposure to excessive levels of these contaminants is detrimental to human health. In this chapter, we have reviewed the reported contamination levels of arsenic (As), cadmium (Cd), lead (Pb), mercury (Hg) and nickel (Ni) in cereals, vegetables, fruits, nuts, pulses and plant oils. The reported concentrations in different plant-based foods were up to 2.9 mg As kg−1, 24 mg Cd kg−1, 61 mg Pb kg−1, 0.10 mg Hg kg−1 and 506 mg Ni kg−1. Concentrations of the studied contaminants in plant oils were within permissible levels in all the listed studies. Moreover, Hg was within permissible levels in all the studies. However, some samples of vegetables, fruits, cereals, pulses and nuts were reported to be contaminated by As, Cd, Pb and Ni to levels toxic to humans. The contamination levels in plant-based foods were related to contamination of agricultural soils, irrigation waters, atmosphere and crop inputs. The occurrence of contaminated plant-based foods is more common in the densely populated developing and underdeveloped countries in the world. Wastewater treatment, soil remediation and control of the emission of air pollutants have become increasingly important for sustainable agriculture. In the absence of effective remediation, food plants should not be grown in contaminated areas or near the sources of contamination.read more
Citations
More filters
Journal Article
Pesticides and heavy metals levels in Egyptian leafy vegetables and some aromatic medicinal plants Part A Chemistry, analysis, control, exposure & risk assessment
TL;DR: A total of 835 samples of leafy vegetables and some aromatic medicinal plants were collected from five different areas of Egypt during 1999 and ninety-seven per cent of the Leafy vegetables were contaminated with heavy metals with 39% exceeding the maximum limits for each element.
Journal ArticleDOI
Potentially toxic elements (PTEs) in cereal-based foods: A systematic review and meta-analysis
TL;DR: In this paper, a meta-analysis study was conducted to estimate the potentially toxic elements (PTEs) contamination in cereal grains and their products such as wheat, rice, corn, maize, barley, oat, peas, soybean, cornflakes, and breakfast.
Journal ArticleDOI
Microalgae in aquatic environs: A sustainable approach for remediation of heavy metals and emerging contaminants
TL;DR: In this article, microalgae has been found to be an efficient and eco-friendly technique for purification of aquatic environs, which can effectively remove N (90−98.4%), P (66%−98%), Pb (75%−100%), Zn (15.6−99.7%), Cr (52.54%−96%), Hg (77%−97%), Cu (45%+98%), and Cd (2−93.06%) from contaminated aquatic systems.
Journal ArticleDOI
Omics approaches for understanding heavy metal responses and tolerance in plants
Monica Jamla,Tushar Khare,Shrushti Joshi,Suraj Patil,Suprasanna Penna,Suprasanna Penna,Vinay Kumar +6 more
TL;DR: The current understandings on the mechanistic insights of selected toxic HM-plant interactions, including their uptake, transport, toxicity and chelation/sequestration in cellular components, besides how plants respond and adapt to these stress factors are summarized.
Journal ArticleDOI
Synthesis and Application of Titanium Dioxide Nanoparticles for Removal of Cadmium from Wastewater: Kinetic and Equilibrium Study
Muhammad Atif Irshad,Muhammad Bilal Shakoor,Muhammad Bilal Shakoor,Shafaqat Ali,Shafaqat Ali,Rab Nawaz,Muhammad Rizwan +6 more
TL;DR: In this article, the capacity of titanium dioxide nanoparticles (TiO2 NPs) for selective removal of Cadmium (Cd) from wastewater was investigated using newly developed sol-gel method and sorption attributes were investigated as a function of contact time, sorbent dosage, pH and initial Cd concentration.
References
More filters
Journal ArticleDOI
Free radicals and antioxidants in normal physiological functions and human disease
TL;DR: Attention is focussed on the ROS/RNS-linked pathogenesis of cancer, cardiovascular disease, atherosclerosis, hypertension, ischemia/reperfusion injury, diabetes mellitus, neurodegenerative diseases, rheumatoid arthritis, and ageing.
Journal ArticleDOI
IARC Monographs on the Evaluation of Carcinogenic Risks to Humans
TL;DR: This timely monograph is a distillation of knowledge of hepatitis B, C and D, based on a review of 1000 studies by a small group of scientists, and it is concluded that hepatitis D virus cannot be classified as a human carcinogen.
Journal ArticleDOI
Hazards of heavy metal contamination.
TL;DR: Recent data indicate that adverse health effects of cadmium exposure may occur at lower exposure levels than previously anticipated, primarily in the form of kidney damage but possibly also bone effects and fractures, and measures should be taken to reduce cadmiam exposure in the general population in order to minimize the risk of adverse health results.
Book
Trace Elements in Human and Animal Nutrition
TL;DR: This book discusses the history of zinc, its application in agriculture, and its applications in the management of soil-Plant-Animal relations.
Book ChapterDOI
Heavy metal toxicity and the environment.
TL;DR: This review provides an analysis of arsenic, cadmium, chromium, lead, and mercury's environmental occurrence, production and use, potential for human exposure, and molecular mechanisms of toxicity, genotoxicity, and carcinogenicity.