scholarly journals Quantification of toxic metals during different winemaking stages

2019 ◽  
Vol 15 ◽  
pp. 02024
Author(s):  
G.-D. Dumitriu (Gabur) ◽  
C. Teodosiu ◽  
I. Morosanu ◽  
O. Jitar ◽  
V.V. Cotea
Keyword(s):  
Heavy Metals ◽  
Human Health ◽  
International Organization ◽  
Anthropogenic Factors ◽  
Priority Pollutants ◽  
Red Wines ◽  
Toxic Heavy Metals ◽  
Agricultural Chemicals ◽  
Health Safety ◽  
Extended Contact

Heavy metals in beverages can constitute serious problems to human health. Consumption of wine may contribute to the daily dietary intake of pollutants, especially of toxic (heavy) metals. These compounds are also known as priority pollutants due to their potential toxic effects, if concentrations are not kept under allowable limits. Many characteristics such as: quality, origin, aroma and health safety of wine are influenced by environmental and anthropogenic factors. Hence, the contamination of wine by priority pollutants may occur at different stages of vine-growing, due to the application of agricultural chemicals, or at different stage of winemaking and ageing, because of the extended contact of wine with winemaking equipment materials (aluminium, brass, glass, stainless steel and wood, etc.), or chemicals used for cleaning and sanitation. The aim of this study is to identify and quantify the heavy metal ions from red wines. A particular focus was attributed to Zn and Cd from destemming-pressing-filtration-bottling stages in Fetească neagră grape variety from Cotnari vine growing region of Romania. Results indicated that heavy metals were linked to diverse Zn and Cd sources and complexes during the winemaking processes. Concentration of Zn and Cd were generally higher in must than in wine, although heavy metals concentrations were lower than the limits recommended by the International Organization of Vine and Wine for human health safety.

scholarly journals Impact of Abattoir Wastes on Trace Metal Accumulation, Speciation, and Human Health–Related Problems in Soils Within Southern Nigeria

2020 ◽  
Vol 13 ◽  
pp. 117862211989843 ◽  
Author(s):  
Godwin Asukwo Ebong ◽  
Ekomobong Samuel Ettesam ◽  
Emmanuel Udo Dan
Keyword(s):  
Heavy Metals ◽  
Organic Matter ◽  
Human Health ◽  
Health Problems ◽  
Control Plot ◽  
Residual Fraction ◽  
Anthropogenic Factors ◽  
Waste Products ◽  
Environmental Models ◽  
Southern Nigeria

The slaughtering of animals and processing of meats for human consumption generates enormous wastes which are not properly managed in most developing nations including Nigeria. Majority of people in Akwa Ibom state in southern Nigeria depend on meat as their major source of protein, and abattoir wastes are applied in farms as organic manure by some farmers. This study examined the role of abattoir-related waste products in the physicochemical properties, total metal, and metal speciation of the soil. The data obtained were also subjected to some treatments using some environmental models to establish the degree of contamination by the parameters determined, studied locations, and the associated human health problems. Samples were collected from 5 designated abattoirs in Akwa Ibom state. Thirty composite samples were used for the research. Results obtained showed higher levels of pH, electrical conductivity, organic matter, and cation exchange capacity in the abattoir waste–impacted soils than in the control plot. Levels of pseudo total heavy metals were also higher in the studied soils than in the control plot. The mean values of the metals are below 400, 85, 140, 36, 100, and 35 mg/kg of recommended limits for Fe, Pb, Zn, Cu, Cr, and Ni, respectively by the Federal Environmental Protection Agency (FEPA) in Nigerian soil. The results also revealed that Fe and Cr existed mainly in residual fraction. However, Zn, Cu, and Ni existed principally in the form bound to organic matter/sulfide. In addition, we detected that Pb existed mainly in the reducible fraction. Disparities were also observed in the speciation results of the metals between the studied soils and the control plot. Principal component analysis (PCA) indentified that both the geogenic and anthropogenic factors contributed to the accumulation of metals determined in the studied soils. Variable relationships were also observed for the heavy metals determined in the studied soils. Fe showed a high-risk potential, and children were more vulnerable due to its toxicity. We conclude this study was able to expose the consequences of indiscriminate dumping of abattoir wastes on the quality of soil and the associated human health problems.

scholarly journals Heavy Metals and Microbes Accumulation in Soil and Food Crops Irrigated with Wastewater and the Potential Human Health Risk: A Metadata Analysis

Water ◽  
2021 ◽  
Vol 13 (23) ◽  
pp. 3405
Author(s):  
Yahia A. Othman ◽  
Amani Al-Assaf ◽  
Maher J. Tadros ◽  
Abeer Albalawneh
Keyword(s):  
Heavy Metals ◽  
Health Risk ◽  
Human Health ◽  
Human Health Risk ◽  
Toxic Heavy Metals ◽  
Forage Crops ◽  
The World ◽  
Metadata Analysis ◽  
The Mean ◽  
Edible Parts

Wastewater is actively used for irrigation of vegetable and forage crops in arid lands due to water scarcity and cost advantages. The objective of this review was to assess the effect of wastewater (mixture sources) reuse in irrigation on soil, crop (vegetable and forage crops), animal products, and human health. The metadata analysis of 95 studies revealed that the mean of toxic heavy metals including nickel (Ni), chromium (Cr), cadmium (Cd), lead (Pb), and zinc (Zn) in untreated wastewater were higher than the world standard limits in wastewater-irrigated regions. Although heavy metals in treated wastewater were within the standard limits in those areas, the concentration of those toxic elements (Pb, Cd, Ni, Cr, and As) exceeded the allowable limits in both soil and vegetables’ edible parts. In fact, the concentration of heavy metals in vegetables’ edible parts increased by 3–9 fold when compared with those irrigated with fresh water. Escherichia coli in wastewater-irrigated soil was about 2 × 106 (CFU g−1) and about 15 (CFU g−1) in vegetables’ edible parts (leaf, bulb, tuber and fruit) while the mean total coliforms was about 1.4 × 106 and 55 (CFU g−1) in soil and vegetables’ edible parts, respectively. For human health risk assessment, the estimated daily intake (EDI) and human health risk index (HRI) ranged from 0.01 to 8 (EDI and HRI > 1.0 associated with adverse health effects). Although the mean of EDI for heavy metals from wastewater-irrigated vegetables were less than 1, the HRI for Cd and Pb were above the limits for safe consumption. Overall, heavy metal levels in wastewater that used for irrigation of agricultural crops could be within the recommended levels by the world standards, but the long-term use of this reused water will contaminate soil and crops with several toxic heavy metals leading to potential carcinogenic risks to humans. Therefore, rigorous and frequent testing (wastewater, soil, and plant) is required in cultivated farms to prevent the translocation of heavy metals in the food chain.

Combining mussel and seaweed hydrogel-inspired strategies to design novel ion-imprinted sorbents for ultra-efficient lead removal from water

2019 ◽  
Vol 43 (14) ◽  
pp. 5495-5502 ◽  
Author(s):  
Wei Shen ◽  
Xiao Jiang ◽  
Qing-Da An ◽  
Zuo-Yi Xiao ◽  
Shang-Ru Zhai ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Human Health ◽  
Lead Removal ◽  
Toxic Heavy Metals ◽  
Ion Imprinted

Lead(ii) is one of the most toxic heavy metals and is a serious threat to the environment and human health.

scholarly journals Pengaruh CdCl2 terhadap Produksi Eksopolisakarida dan Daya Hidup Azotobacter

2012 ◽  
Vol 12 (1) ◽  
pp. 34 ◽  
Author(s):  
Reginawanti Hindersah ◽  
Dedeh Hudaya Arief ◽  
Soetijoso Soemitro ◽  
Lukman Gunarto
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Liquid Medium ◽  
Human Health ◽  
Contaminated Soil ◽  
Room Temperature ◽  
Gravimetric Method ◽  
Soil Bioremediation ◽  
Toxic Heavy Metals ◽  
Toxic Heavy Metal

The contamination of toxic heavy metal Cadmium (Cd) in soils will be endanger the human health because it ismore available comparing to another toxic heavy metals. One method of Cd-contaminated soil bioremediation isusing exopolysachharide-producing bacteria Azotobacter. Exopolysachharides (EPS) can mobilize Cd through theformation of complex Cd-EPS which sequentially can increase the availability of Cd for plants uptake. A laboratoryexperiment has been done to study the EPS production and the viability of six Azotobacter isolates in the liquidculture containing 0.01, 0.1, and 1 mM CdCl2. The bacteria were cultured in liquid medium with and without CdCl2 for72 hours at room temperature. The EPS production was determined by gravimetric method after precipitationusing acetone and centrifugation at 7000 rpm. The result was that all of Azotobacter isolates produce EPS in thepresence of CdCl2. In the culture with 1 mM CdCl2, the density of Azotobacter sp. isolate BS3, LK5, LKM6 increasedsignificantly, and that of isolate LH16 decreased. No significant effect of CdCl2 on the density of isolate BS2 andLH15. This research suggested that some Azotobacter isolates were relatively resistence to the Cd and could bedeveloped as biological agents in Cd-contaminated soil bioremediation.

scholarly journals Environmental Chemistry and Ecotoxicology of Hazardous Heavy Metals: Environmental Persistence, Toxicity, and Bioaccumulation

2019 ◽  
Vol 2019 ◽  
pp. 1-14 ◽  
Author(s):  
Hazrat Ali ◽  
Ezzat Khan ◽  
Ikram Ilahi
Keyword(s):  
Heavy Metals ◽  
Human Health ◽  
Environmental Chemistry ◽  
Anthropogenic Sources ◽  
Health Concern ◽  
Food Chains ◽  
Toxic Heavy Metals ◽  
Environmental Persistence ◽  
Metals And Metalloids ◽  
Heavy Metals And Metalloids

Heavy metals are well-known environmental pollutants due to their toxicity, persistence in the environment, and bioaccumulative nature. Their natural sources include weathering of metal-bearing rocks and volcanic eruptions, while anthropogenic sources include mining and various industrial and agricultural activities. Mining and industrial processing for extraction of mineral resources and their subsequent applications for industrial, agricultural, and economic development has led to an increase in the mobilization of these elements in the environment and disturbance of their biogeochemical cycles. Contamination of aquatic and terrestrial ecosystems with toxic heavy metals is an environmental problem of public health concern. Being persistent pollutants, heavy metals accumulate in the environment and consequently contaminate the food chains. Accumulation of potentially toxic heavy metals in biota causes a potential health threat to their consumers including humans. This article comprehensively reviews the different aspects of heavy metals as hazardous materials with special focus on their environmental persistence, toxicity for living organisms, and bioaccumulative potential. The bioaccumulation of these elements and its implications for human health are discussed with a special coverage on fish, rice, and tobacco. The article will serve as a valuable educational resource for both undergraduate and graduate students and for researchers in environmental sciences. Environmentally relevant most hazardous heavy metals and metalloids include Cr, Ni, Cu, Zn, Cd, Pb, Hg, and As. The trophic transfer of these elements in aquatic and terrestrial food chains/webs has important implications for wildlife and human health. It is very important to assess and monitor the concentrations of potentially toxic heavy metals and metalloids in different environmental segments and in the resident biota. A comprehensive study of the environmental chemistry and ecotoxicology of hazardous heavy metals and metalloids shows that steps should be taken to minimize the impact of these elements on human health and the environment.

Toxic heavy metals: impact on the environment and human health, and treatment with conducting organic polymers, a review

2020 ◽  
Vol 27 (24) ◽  
pp. 29927-29942 ◽  
Author(s):  
Mohamed Lamine Sall ◽  
Abdou Karim Diagne Diaw ◽  
Diariatou Gningue-Sall ◽  
Snezana Efremova Aaron ◽  
Jean-Jacques Aaron
Keyword(s):  
Heavy Metals ◽  
Human Health ◽  
Organic Polymers ◽  
Toxic Heavy Metals

Zero-wastewater capacitive deionization: selective removal of heavy metal ions in tap water assisted by phosphate ions

2019 ◽  
Vol 6 (11) ◽  
pp. 3225-3231 ◽  
Author(s):  
Xingkang Huang ◽  
Xiaoru Guo ◽  
Qianqian Dong ◽  
Lianjun Liu ◽  
Rebecca Tallon ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Drinking Water ◽  
Human Health ◽  
Heavy Metal Ions ◽  
Tap Water ◽  
Capacitive Deionization ◽  
Toxic Heavy Metals ◽  
Phosphate Ions ◽  
Novel Concept

Removing trace toxic heavy metals such as Pb2+ completely from drinking water while retaining beneficial ions such as Ca2+ and Mg2+ is important for protecting human health. A novel concept of zero-wastewater CDI is demonstrated to selectively remove lead ions against Ca2+ and Mg2+.

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