Heavy Metals Contamination in Food and Associated Human Health Risk

A special issue of Foods (ISSN 2304-8158). This special issue belongs to the section "Food Toxicology".

Deadline for manuscript submissions: closed (31 January 2025) | Viewed by 2704

Special Issue Editor


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Guest Editor
NIBIO, Division of Food Production and Society, Kudalsveien 6, NO-8027 Bodo, Norway
Interests: food and nutrition; food safety; biorefinery; food processing; food analysis

Special Issue Information

Dear Colleagues,

The UN Sustainable Development Goal No. 2 is “zero hunger”, and ensuring food security for all will become increasingly important in order to fulfil this goal. A crucial part of the term food security is the safety of consumption, and one of the threats regarding this is the presence/contamination of heavy metals. Heavy metals can be introduced into foods all along the production line, and exposure to these compounds can lead to a range of adverse health effects, such as impaired development, cancer, organ damage, and damage to the nervous system. The main objective of this Special Issue is to increase the knowledge about heavy metal contamination in foods and the mitigation of the effects of exposure. Original research papers, meta-analyses, and review papers on the suggested topics (not limited to) are welcome.

  1. Documentation of heavy metal contamination in various foods.
  2. Processing technology for reduction in heavy metal contamination in foods.
  3. Analytical methodology for detection of heavy metals.
  4. Human health risk assessment, toxicological considerations, and regulatory issues.

Dr. Hanne Maehre
Guest Editor

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Keywords

  • heavy metals
  • food safety and security
  • analytical methodology
  • risk assessment
  • toxicology

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Published Papers (2 papers)

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Research

23 pages, 2143 KiB  
Article
Seasonal Variations in Heavy Metal Concentrations in Mussels (Mytilus chilensis) from Southern Chile: Health Risk Implications Associated with Their Consumption
by Ociel Muñoz-Fariña, Analese Roman-Benn, Carmen Lopez-Joven, Luisbel González-Pérez de Medina and María Cristina Ravanal
Foods 2025, 14(6), 916; https://doi.org/10.3390/foods14060916 - 7 Mar 2025
Cited by 1 | Viewed by 935
Abstract
Mytilus chilensis is considered an important food source for the Chilean population and represents a considerable fraction of its aquacultural production, mainly in southern Chile’s coastal regions. This study aimed to assess the concentrations of total arsenic (tAs), lead (Pb), and cadmium (Cd), [...] Read more.
Mytilus chilensis is considered an important food source for the Chilean population and represents a considerable fraction of its aquacultural production, mainly in southern Chile’s coastal regions. This study aimed to assess the concentrations of total arsenic (tAs), lead (Pb), and cadmium (Cd), their bioaccessibility, and associated health risks in M. chilensis from the Valdivia River Estuary (VRE) in the Los Ríos Region and the Reloncaví Fjord (RF) in the Los Lagos Region. The metal concentrations were quantified using Inductively Coupled Plasma–Optical Emission Spectrometry (ICP-OES). The concentrations of tAs, Cd, and Pb were 6682 ± 2018, 1592 ± 742, and 1208 ± 639 ng/g d.w., respectively. Variations in the metal concentrations were observed across areas, months, and sampling points but remained below national and international limits. No correlation was found between the metal concentrations and environmental parameters. The bioaccessibility percentages were tAs (68 ± 10%), Cd (45 ± 21%), and Pb (15 ± 4%). The tAs, Pb and Cd levels in M. chilensis from southern Chile do not represent a risk to human health. Full article
(This article belongs to the Special Issue Heavy Metals Contamination in Food and Associated Human Health Risk)
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11 pages, 891 KiB  
Article
Arsenic Bioaccessibility in Rice and Its Application to Derive Health-Based Limits in China
by Di Zhao
Foods 2024, 13(17), 2741; https://doi.org/10.3390/foods13172741 - 29 Aug 2024
Viewed by 1211
Abstract
Arsenic (As) contamination in rice is a global public health concern, particularly in Asian countries where rice is the staple food. Current health-based limits for As in rice are typically derived from total As concentrations, resulting in overly stringent values. This study aimed [...] Read more.
Arsenic (As) contamination in rice is a global public health concern, particularly in Asian countries where rice is the staple food. Current health-based limits for As in rice are typically derived from total As concentrations, resulting in overly stringent values. This study aimed to determine As bioaccessibility in rice, estimate dietary intakes of inorganic As (iAs) at different consumption rates, evaluate the cancer and non-cancer risks associated with iAs exposure through rice consumption, and assess the feasibility of deriving more accurate health-based limits for As in rice after incorporating rice As bioaccessibility. Bioaccessibility of As ranged from 60.7% to 104.5% in rice samples. Estimated iAs intake varied from 0.04 to 1.40 μg/kg BW/day at rice consumption rates of 100–300 g/day. Incorporating rice As bioaccessibility resulted in lower iAs intake estimates of 0.03–1.18 μg/kg BW/day. The non-cancer and cancer risks associated with iAs exposure are concerning for populations with higher rice consumption rates and elevated rice iAs concentrations. Health-based limits for iAs in rice for different regions across China are discussed after incorporating rice As bioaccessibility. This study contributes to the development of regional or national safety limits for As in rice, based on As bioaccessibility in rice. Full article
(This article belongs to the Special Issue Heavy Metals Contamination in Food and Associated Human Health Risk)
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