Distribution of Heavy Metals in Muscles and Internal Organs of Korean Cephalopods and Crustaceans: Risk Assessment for Human Health

2014 ◽  
Vol 77 (12) ◽  
pp. 2168-2175 ◽  
Author(s):  
JONG SOO MOK ◽  
JI YOUNG KWON ◽  
KWANG TAE SON ◽  
WOO SEOK CHOI ◽  
KIL BO SHIM ◽  
...  

Samples of seven species of cephalopods and crustaceans were collected from major fish markets on the Korean coast and analyzed for mercury (Hg) using a direct Hg analyzer and for the metals cadmium (Cd), lead (Pb), chromium, silver, nickel, copper, and zinc using inductively coupled plasma mass spectrometry. The distributions of heavy metals in muscles, internal organs, and whole tissues were determined, and a risk assessment was conducted to provide information concerning consumer safety. The heavy metals accumulated to higher levels (P < 0.05) in internal organs than in muscles for all species. The mean concentrations of Cd, which had the highest concentrations of the three hazardous metals (Cd, Pb, and Hg), in all internal organs (except those of blue crab) exceeded the regulatory limits set by Korea and the European Union. The Cd concentrations in all whole tissues of squid and octopus (relatively large cephalopods), red snow crab, and snow crab exceeded the European Union limits. The estimated dietary intake of Cd, Pb, and Hg for each part of all species accounted for 1.73 to 130.57%, 0.03 to 0.39%, and 0.93 to 1.67%, respectively, of the provisional tolerable daily intake adopted by the Joint Food and Agriculture Organization and World Health Organization Expert Committee on Food Additives; the highest values were found in internal organs. The hazard index (HI) is recognized as a reasonable parameter for assessing the risk of heavy metal consumption associated with contaminated food. Because of the high HI (>1.0) of the internal organs of cephalopods and the maximum HI for whole tissue of 0.424, consumers eating internal organs or whole tissues of cephalopods could be at risk of high heavy metal exposure. Therefore, the internal organs of relatively large cephalopods and crabs (except blue crab) are unfit for consumption. However, consumption of flesh after removing internal organs is a suitable approach for decreasing exposure to harmful metals.

2019 ◽  
Vol 4 (4) ◽  

Heavy metal contamination in our food and supplements is a very real and serious issue. Surveillance activities in a number of countries in recent years have identified high levels of the heavy metals like lead, cadmium, arsenic and mercury in certain food supplements. Consumption of such contaminated food supplements may contribute to human exposure to these metals. Heavy metal testing is a cornerstone of any GMP-certified manufacturer’s quality assurance program, and to ensure consumer safety. The aim of the study was to compare the levels of these metals found in food supplements, which are available in the local market of Dubai with the legislative requirements. Over 200 food supplements were analyzed in this study during the year 2018. The concentration of heavy metals in supplement products were determined using microwave digestion and high-resolution inductively coupled plasma mass spectrometry with concentrated nitric acid. The results showed a high degree of compliance with the limits of 3 μg lead/g, 1 μg cadmium/g and 0.1 μg mercury/g in the products with the exception of two samples were above the maximum levels of 3 μg lead/g and 1 sample above the maximum levels of 0.1 μg mercury/g. Cadmium were below regulations set by the European Union. However, total arsenic has no regulatory limits set up by the European Union legislation to assess the risk. The concentration ranges were as follows: arsenic, <50-32381 μg/kg; cadmium, <10-958 μg/kg; mercury, <50-139 μg/kg; and lead, <50-44303 μg/kg. Therefore, determination of these elements in these products is necessary and the authorities should be survey and monitor these products at regular intervals.


Author(s):  
C. M. Ekuma ◽  
T. C. Ogunyemi

Determination of heavy metal contents in edible clay (kaolin) from Enyigba in Abakaliki, Ebonyi State of Nigeria was carried out using Atomic absorption Spectrophotometer (AAS). The quantitative analysis of heavy metal analyzed in the edible clay sample were 0.012 mg/kg for Co, 0.113 mg/kg for Cu and 0.712 mg/kg for Ni. This study shows that the levels of these heavy metals (Co, Cu and Ni) in kaolin are below the permissible limits as established by the regulatory organization (World Health Organization, WHO). Compared to the safety intake levels for these heavy metals recommended by US Environmental Protection Agency (US EPA) and Joint FAO/WHO Expert Committee on Food Additives (JECFA), Expert Group on Vitamins and Minerals (EVM), and Agency for toxic substance and disease Registry (ATSDR), the dietary intakes of the three heavy metals from daily consumption of 20 g of kaolin should pose no health risk to human.


2019 ◽  
Vol 6 (12) ◽  
pp. 149-160
Author(s):  
Foluso Ologundudu ◽  
Adegbite Tobi ◽  
Omotola Fopeyemi

Heavy metal contamination of polluted site has become a recurring decimal globally posing a threat to human life and biodiversity. This study was carried out to investigate the bioaccumulation potential and health risk assessment associated with the consumption of two indigenous vegetables Corchorus olitorius L. (Malvaceae) and Amaranthus hybridus (Amaranthaceae) in Akure. Initial pre soil analysis showed that the heavy metal concentration were above the safe limit as recommended by World Health Organization (WHO). The heavy metals investigated include Cr, Ni, Cd, Fe and Pb for their bioaccumulation factor to provide baseline data regarding environmental safety and suitability of the vegetables for human consumption. Translocation factor, Daily Intake of Metal (DIM), Health Risk Index (HRI) and Oral Refrence Dose (RFD) were calculated following standard methods. This study concludes that different vegetables accumulate and translocate variable amount of heavy metals from the soil into their tissues. Hence, it is not advisable to consume vegetable samples collected from this site based on the permissible limits as recommended by World Health Organization (WHO).


2019 ◽  
Vol 70 (11) ◽  
pp. 1543
Author(s):  
Patrizia Marchetti ◽  
Fatmira Shehu ◽  
Angela Di Pinto ◽  
Valeriana Colao ◽  
Giuseppina Tantillo ◽  
...  

The Ohrid trout (Salmo letnica) is an endemic species of trout found only in Lake Ohrid, in the Balkan republics of North Macedonia and Albania, where it is a species of significant economic and nutritional interest. Considering the importance of chemical risk assessment in fish for human consumption set out by European and international legislation and the risk of extinction of the Ohrid trout, the aim of the present study was to evaluate the safety of Ohrid trout flesh for human consumption by determining the heavy metal concentration in different organs through atomic absorption spectrometry (AAS). Heavy metal concentrations differed significantly in different organs (P&lt;0.001). The mean and range of Pb and Cr concentrations in muscle were lower than the permissible limits recommended for human consumption according to the European Union (EU), as well as the Food and Agriculture Organization of the United Nations (FAO) and World Health Organization, whereas the mean concentration and range of Cd in muscle tissue were above the critical limits for human consumption set by the EU and FAO, revealing inspection-related problems. Accordingly, S. letnica is not completely safe for human consumption. Therefore, the long-term assessment of heavy metal concentrations in Ohrid trout from Lake Ohrid is an important safety measure for fish consumers and will help assess the status of exploitation of this biological resource.


2021 ◽  
Vol 9 (5) ◽  
pp. 473
Author(s):  
Magda M. Abou El-Safa ◽  
Mohamed Gad ◽  
Ebrahem M. Eid ◽  
Ashwaq M. Alnemari ◽  
Mohammed H. Almarshadi ◽  
...  

The present study focuses on the risk assessment of heavy metal contamination in aquatic ecosystems by evaluating the current situation of heavy metals in seven locations (North Amer El Bahry, Amer, Bakr, Ras Gharib, July Water Floud, Ras Shokeir, and El Marageen) along the Suez Gulf coast that are well-known representative sites for petroleum activities in Egypt. One hundred and forty-six samples of surface sediments were carefully collected from twenty-seven profiles in the intertidal and surf zone. The hydrochemical parameters, such as pH and salinity (S‰), were measured during sample collection. The mineralogy study was carried out by an X-ray diffractometer (XRD), and the concentrations of Al, Mn, Fe, Cr, Cu, Co, Zn, Cd, and Pb were determined using inductively coupled plasma mass spectra (ICP-MS). The ecological risks of heavy metals were assessed by applying the contamination factor (CF), enrichment factor (EF), geoaccumulation index (Igeo), pollution load index (PLI), and potential ecological risk index (RI). The mineralogical composition mainly comprised quartz, dolomites, calcite, and feldspars. The average concentrations of the detected heavy metals, in descending order, were Al > Fe > Mn > Cr > Pb > Cu > Zn > Ni > Co > Cd. A non-significant or negative relationship between the heavy metal concentration in the samples and their textural grain size characteristics was observed. The coastal surface sediment samples of the Suez Gulf contained lower concentrations of heavy metals than those published for other regions in the world with petroleum activities, except for Al, Mn, and Cr. The results for the CF, EF, and Igeo showed that Cd and Pb have severe enrichment in surface sediment and are derived from anthropogenic sources, while Al, Mn, Fe, Cr, Co, Ni, Cu, and Zn originate from natural sources. By comparison, the PLI and RI results indicate that the North Amer El Bahry and July Water Floud are considered polluted areas due to their petroleum activities. The continuous monitoring and assessment of pollutants in the Suez Gulf will aid in the protection of the environment and the sustainability of resources.


2017 ◽  
Vol 603-604 ◽  
pp. 827-831 ◽  
Author(s):  
Gergely Tóth ◽  
Tamás Hermann ◽  
Gábor Szatmári ◽  
László Pásztor

2013 ◽  
Vol 2 (1) ◽  
Author(s):  
Andreas Hadjigeorgiou ◽  
Elpidoforos S. Soteriades ◽  
Anastasios Philalithis ◽  
Anna Psaroulaki ◽  
Yiannis Tselentis ◽  
...  

This paper is a comparative survey of the National Food Safety Systems (NFSS) of the European Union (EU) Member-States (MS) and the Central EU level. The main organizational structures of the NFSS, their legal frameworks, their responsibilities, their experiences, and challenges relating to food safety are discussed. Growing concerns about food safety have led the EU itself, its MS and non-EU countries, which are EU trade-partners, to review and modify their food safety systems. Our study suggests that the EU and 22 out of 27 Member States (MS) have reorganized their NFSS by establishing a single food safety authority or a similar organization on the national or central level. In addition, the study analyzes different approaches towards the establishment of such agencies. Areas where marked differences in approaches were seen included the division of responsibilities for risk assessment (RA), risk management (RM), and risk communication (RC). We found that in 12 Member States, all three areas of activity (RA, RM, and RC) are kept together, whereas in 10 Member States, risk management is functionally or institutionally separate from risk assessment and risk communication. No single ideal model for others to follow for the organization of a food safety authority was observed; however, revised NFSS, either in EU member states or at the EU central level, may be more effective from the previous arrangements, because they provide central supervision, give priority to food control programs, and maintain comprehensive risk analysis as part of their activities.


2020 ◽  
Vol 73 (7) ◽  
pp. 1459-1464
Author(s):  
Tatyana O. Yastrub ◽  
Sergii T. Omelchuk ◽  
Andrii M. Yastrub

The aim: The toxicological-hygienic assessment of dermal absorption of diquat in terms of potential risk of its bioavailability in professional use. Materials and methods: The object of the study was cutaneous exposure of diquat, determined in toxicological experiments of different duration (data of scientific literature) and at the stage of state testing of pesticide preparations based on diquat dibromide (data of a full-scale hygiene experiment, prognostic model of risk assessment), the technical concentrate of diquat dibromide (active substance content not less than 377 g / kg) contains relevant supplements, the content of which is regulated by the Food and Agriculture Organization. Results and conclusions: Due to the high risk of the diquat adverse effects affecting the personnel, general public and environment, the European Union has introduced administrative decisions to forbid plant protection products containing the diquat. Fulfillment of the conditions of the Association Agreement between Ukraine and the European Union indicates the need to develop common regulations and risk assessment methods aimed at ensuring high level of protection of human health and the environment.


2020 ◽  
Vol 9 (3) ◽  
Author(s):  
Hawraz Sami Khalid ◽  
Hoshyar Saadi Ali ◽  
Dhary Almashhadany

The present study was conducted to evaluate the quality of drinking water in randomly selected schools in Erbil city, Kurdistan Region, Iraq. The water quality indices such as the Heavy metal Pollution Index (HPI) and Heavy metal Evaluation Index (HEI) were applied to characterize water quality. Eighteen schools were incorporated and sampled for their water storage tanks available to students. Water samples and sediment samples from tanks floor were analyzed by Inductively Coupled Plasma Optical Emission Spectrometer for the determination of twenty-two metal elements. In drinking water samples, all detected metals did not exceed the permissible limits of the World Health Organization. The results of this study showed that the average values of HPI and HEI for As, Cd, Cr, Cu, Fe, Pb, Mn, Ni, and Zn were 54.442 and 0.221, respectively. According to data of the water quality indices, the schools drinking water quality are good and suitable for drinking in terms of heavy metals. However, sediments samples contained high concentrations of all elements including the toxic heavy metals (As, Cd, Cr, and Pb). Re-suspension of sediments into water column after refilling storage tanks can pose a serious threat to students drinking water from such vessels. It is therefore recommended that proper storage tanks are provided to the schools accompanied by continuous sanitation and hygiene practice to mitigate the corrosion of tanks to avoid health risks of toxic metal


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