Distribution of environmental pollutants in pet animals. VI. Heavy metals in hair of house-dogs

1981 ◽  
Vol 26 (1) ◽  
pp. 60-64 ◽  
Author(s):  
Masatoshi Hayashi ◽  
Isamu Okada ◽  
Hiroshi Tate ◽  
Yoshikazu Miura ◽  
Shuji Ohhira ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Environmental Pollutants

scholarly journals Contamination of Heavy Metals, Polychlorinated Dibenzo-p-Dioxins/Furans and Dioxin-Like Polychlorinated Biphenyls in Wharf Roach Ligia spp. In Japanese Intertidal and Supratidal Zones

2021 ◽  
Vol 11 (4) ◽  
pp. 1856
Author(s):  
Masato Honda ◽  
Xuchun Qiu ◽  
Suzanne Lydia Undap ◽  
Takeshi Kimura ◽  
Tsuguhide Hori ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Polychlorinated Biphenyls ◽  
Limit Of Detection ◽  
Environmental Pollutants ◽  
Dry Weight ◽  
Polychlorinated Dibenzofurans ◽  
Environmental Indicator ◽  
Pollution Levels ◽  
Copper Zinc ◽  
Total Concentrations

We investigated the pollution levels of 6 heavy metals and 29 dioxins (polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), and dioxin-like polychlorinated biphenyls (DL-PCBs)) in intertidal and supratidal zones by using wharf roaches (Ligia spp.) collected from 12 sampling sites on the coast of Northeast Japan from November 2011 to June 2012. The total concentrations of heavy metals ranged from 177 to 377 µg/g-dry weight (dw), and the predominant metals were copper, zinc, and aluminum. The order of the detected level of heavy metals was zinc > aluminum > copper > cadmium > lead > chromium, and this trend was similar to a previous report. The total toxic equivalent (TEQ) value of the PCDD/Fs ranged from less than the limit of detection (<LOD) to 2.33 pg-TEQ/g-dw, and the predominant congener was octachlorodibenzodioxin (<LOD to 110 pg/g-dw). Compared with PCDD/Fs, DL-PCBs were detected at a predominantly higher level (total TEQ value: 0.64–27.79 pg-TEQ/g-dw). Detected levels of dioxins, especially DL-PCBs in the wharf roach, were like those in the bivalves. These results indicate that the wharf roach could reflect heavy metals and dioxin pollution in the supratidal zones and is a suitable environmental indicator for these environmental pollutants. This is the first study to investigate heavy metals, PCDD/Fs, and DL-PCBs pollution in coastal isopods in Japan.

scholarly journals Excretion of Heavy Metals and Glyphosate in Urine and Hair Before and After Long-Term Fasting in Humans

2021 ◽  
Vol 8 ◽  
Author(s):  
Franziska Grundler ◽  
Gilles-Eric Séralini ◽  
Robin Mesnage ◽  
Vincent Peynet ◽  
Françoise Wilhelmi de Toledo
Keyword(s):  
Heavy Metals ◽  
Environmental Pollutants ◽  
Dietary Exposure ◽  
The Body ◽  
Health Concern ◽  
Obese People ◽  
Clinical Trial Registration ◽  
Reduced Body ◽  
Before And After

Background: Dietary exposure to environmental pollutants in humans is an important public health concern. While long-term fasting interrupts the dietary exposure to these substances, fat mobilization as an energy source may also release bioaccumulated substances. This was, to our knowledge, only investigated in obese people decades ago. This study explored the effects of 10-days fasting on the excretion of heavy metals and glyphosate.Methods: Urinary levels of arsenic, chromium, cobalt, lead, nickel, mercury and glyphosate were measured before and after 10 fasting days in 109 healthy subjects. Additionally, hair analysis was done before and ten weeks after fasting in 22 subjects.Results: Fasting caused a decrease in body weight, and in urinary arsenic (by 72%) and nickel (by 15%) concentrations. A decrease in lead hair concentrations (by 30%) was documented. Urinary mercury levels were unchanged for chromium, cobalt and glyphosate, which were undetectable in most of the subjects. Additionally, fatigue, sleep disorders, headache and hunger were reduced. Body discomfort symptoms diminished four weeks after food reintroduction.Conclusions: The results of this study provide the first insights into the changes in heavy metal excretion caused by long-term fasting. Further studies focusing on the kinetics of efflux between different compartments of the body are needed.Clinical Trial Registration:https://www.drks.de/drks_web/navigate.do?navigationId=trial.HTML&amp;TRIAL_ID=DRKS00016657, identifier: DRKS00016657.

Isolation and characterization of heavy metal tolerant Gram-positive bacteria with bioremedial properties from municipal waste rich soil of Kestopur canal (Kolkata), West Bengal, India

Biologia ◽  
2012 ◽  
Vol 67 (5) ◽  
Author(s):  
Kamala Gupta ◽  
Chitrita Chatterjee ◽  
Bhaskar Gupta
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Tolerance ◽  
Environmental Pollutants ◽  
Heavy Metal Tolerance ◽  
Antibiotic Sensitivity ◽  
Bacterial Strains ◽  
High Concentration ◽  
Isolation And Characterization ◽  
Bacillus Weihenstephanensis

AbstractThe present study was conducted to determine the culturable bacterial profile from Kestopur canal (Kolkata, India) and analyze their heavy metal tolerance. In addition to daily sewage including solid and soluble wastes, a considerable load of toxic metals are released into this water body from industries, tanneries and agriculture, household as well as health sectors. Screening out microbes from such an environment was done keeping in mind their multifunctional application especially for bioremediation. Heavy metals are major environmental pollutants when present in high concentration in soil and show potential toxic effects on growth and development in plants and animals. Some edible herbs growing in the canal vicinity, and consumed by people, were found to harbour these heavy metals at sub-toxic levels. The bioconcentration factor of these plants being <1 indicates that they probably only absorb but not accumulate heavy metals. All the thirteen Grampositive bacteria isolated from these plants rhizosphere were found to tolerate high concentration of heavy metals like Co, Ni, Pb, Cr, Fe. Phylogenetic analysis of their 16S rDNA genes revealed that they belonged to one main taxonomic group — the Firmicutes. Seven of them were found to be novel with 92–95% sequence homology with known bacterial strains. Further microbiological analyses show that the alkaliphilic Bacillus weihenstephanensis strain IA1 and Exiguobacterium aestuarii strain CE1, with selective antibiotic sensitivity along with high Ni2+ and Cr6+ removal capabilities, respectively, can be prospective candidates for bioremediation.

scholarly journals Autism-Like Behavior and Epigenetic Changes Associated with Autism as Consequences ofIn UteroExposure to Environmental Pollutants in a Mouse Model

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Denise S. Hill ◽  
Robert Cabrera ◽  
Deeann Wallis Schultz ◽  
Huiping Zhu ◽  
Wei Lu ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Cpg Island ◽  
Environmental Pollutants ◽  
Neural Crest Cell ◽  
Young Male ◽  
In Utero ◽  
Epigenetic Changes ◽  
Impulsive Behavior ◽  
Lead Arsenate ◽  
Cpg Island Methylation

We tested the hypothesis thatin uteroexposure to heavy metals increases autism-like behavioral phenotypes in adult animals and induces epigenetic changes in genes that have roles in the etiology of autism. Mouse dams were treated with cadmium, lead, arsenate, manganese, and mercury via drinking water from gestational days (E) 1–10. Valproic acid (VPA) injected intraperitoneally once on (E) 8.5 served as a positive control. Young male offspring were tested for behavioral deficits using four standardized behavioral assays. In this study,in uteroexposure to heavy metals resulted in multiple behavioral abnormalities that persisted into adulthood. VPA and manganese induced changes in perseverative/impulsive behavior and social dominance behavior, arsenic caused changes only in perseverative/impulsive behavior, and lead induced abnormalities in social interaction in comparison to the control animals. Brain samples from Mn, Pb, and VPA treated and control animals were evaluated for changes in CpG island methylation in promoter regions and associated changes in gene expression. The Chd7 gene, essential for neural crest cell migration and patterning, was found to be hypomethylated in each experimental animal tested compared to water-treated controls. Furthermore, distinct patterns of CpG island methylation yielded novel candidate genes for further investigation.

scholarly journals Bioremediation of Chromium Contaminated and Harbor Dredged Soil

2019 ◽  
Vol 8 (6S4) ◽  
pp. 875-879
Keyword(s):  
Heavy Metals ◽  
Uv Spectroscopy ◽  
Environmental Pollutants ◽  
Chemical Properties ◽  
Sem Analysis ◽  
Natural Soil ◽  
Sieve Analysis ◽  
Dredged Soil ◽  
Micro Organisms ◽  
Remediation Of Soil

Soil contamination is caused by the presence of manmade chemicals in the natural soil environment. It is often caused by some form of industrial activity, agricultural chemicals or the improper disposal of waste. The most common chemicals involved in soil pollution are petroleum hydrocarbons, pesticides and lead and other heavy metals. Heavy metals are among the major environmental pollutants and the accumulation of these metals is a great concern in agricultural production due to the toxic effects it has on crop growth. Remediation of soil is a challenging process but if done perfectly it can yield very good results. Firstly the physical and chemical properties of the soil are tested for understanding the properties of the soil. Test such as sieve analysis, liquid and plastic limit are done to understand the characteristics of the soil. The contaminants and their concentration in the soil can be identified using SEM ANALYSIS and EDAX. The soil is remediated using purpose which suits the nature of the soil. Remediation of soil can be done using either micro organism, chemicals, plants, by passing high voltage current or by other physical purposes. Use of micro organisms is one of the advanced methods of remediation. Micro organisms such as pseudomonas aeruginosa, pseudomonas alcaligenes, and pseudomonas hibisciola are used for remediating the heavy metals of the soil. The micro organisms are inoculated in the contaminated soil and tests such as pH, temperature, UV spectroscopy 620 nm are conducted to understand the effect of micro organisms on the soil. Atomic Absorption Spectroscopy is finally conducted for the 0th hour and 100th hour to understand the amount of heavy metal reduction in the soil samples.

scholarly journals Heavy Metals Uptake of Salty Soils by Ornamental Sunflower, Using Cow Manure and Biosolids: A Case Study in Alborz city, Iran

2020 ◽  
Vol 13 ◽  
pp. 117862211989846 ◽  
Author(s):  
Ahmadreza Yazdanbakhsh ◽  
Seyed Nadali Alavi ◽  
Seyed Alireza Valadabadi ◽  
Fatemeh Karimi ◽  
Zainab Karimi
Keyword(s):  
Heavy Metals ◽  
Wastewater Treatment Plants ◽  
Environmental Pollutants ◽  
Organic Amendments ◽  
Heavy Metal Accumulation ◽  
Cow Manure ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Heavy Metals Uptake

Heavy metals are among the most critical environmental pollutants close to industrial areas. One example is the cultivated fields in the south of Alborz industrial city in Iran, which is irrigated by treated industrial wastewater. It is contaminated by heavy metals and irrigation with wastewater treatment plants effluent, which made it salty. In this study, the application of 2 amendments, biosolids and cow manure, in improving the heavy metal accumulation in the ornamental sunflower from these types of soils was investigated. A greenhouse experiment using a completely randomized design with 4 replications and applying cow manure and biosolids in 3 weight ratios (6%, 12%, 25%) was conducted to evaluate the efficiency of sunflower in removing Pb, Ni, and Zn from the soil. Adding the amendments increased the rate of germination by 50% to 176%. Although the simultaneous utilization of cow manure in high ratios with biosolids and cow manure with low biosolids decreased the sunflower survival, nonetheless, the simultaneous addition of these organic amendments could increase the survival rate in other treatments. Moreover, the plants’ biomass was increased by adding modifiers such as cow manure and biosolids. The results showed that in treatments with 2 modifiers, the remediation factor of Pb, Zn, and Ni has increased 83.7 to 95.5, 78.4 to 87.5, and 74.9 to 94.9, respectively, in comparison to the control one. Therefore, we conclude that adding biosolids and cow manure simultaneously could improve the ornamental sunflower ability to accumulate heavy metals.

Soil Surface Pollution with Heavy Metals Caused by Coal-Fired Boilers

2017 ◽  
Author(s):  
Jolita Braduliene ◽  
Ieva Sveikauskaite
Keyword(s):  
Heavy Metals ◽  
Environmental Pollutants ◽  
Chemical Properties ◽  
Soil Surface ◽  
Weather Conditions ◽  
Ambient Air ◽  
Long Term Storage ◽  
Environment Exposure ◽  
Prevailing Wind Direction

One of the goals for environmental experts is to help avoid, prevent or reduce harmful effects on human health and the environment as a whole. The idea is that the public and the polluting companies would be informed of the effects of pollutants on humans, flora and fauna. To realize this goal are carrying out environmental monitoring, investigations and an-alysed the results. The aim of this work is to evaluate JSC „Nemencines komunalininkas“ boiler-No. 9 resulting air pollution. Company is lo-cated in Vilnius region. The focus is on long-term emissions, e.g. heavy metals (HM), the accumulation on the soil surface to examine boiler-No. 9 impact on the area and assessing the long-term impact on ambient air quality. Soil samples was taken by the principle of the envelope in 11 selected locations 50–300 meters around the boiler area, using non-colour, non-grease, stainless steel tools. Examination of heavy metals in the soil solution, to get the actual data on the amount of HM and their distribution in the soil around the coal-fired boiler territory. Pollutants into the environment, exposure depends on many physical and geochemical processes. Environmental pollutants distribution describes not only the various environmental processes, physical and chemical properties of materials but also the weather conditions. Carryover assessed the prevailing wind direction, as well as simulated through forecast of the largest concentrations of locations. To assess of the boiler No. 9 environmental impact of selected air pollutants was choose in long-term storage medium (soil).

scholarly journals Bioremediation Options for Heavy Metal Pollution

2019 ◽  
Vol 9 (24) ◽  
pp. 191203 ◽  
Author(s):  
Meena Kapahi ◽  
Sarita Sachdeva
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Anthropogenic Activities ◽  
Environmental Pollutants ◽  
Human Beings ◽  
Heavy Metal Leaching ◽  
Advantages And Disadvantages ◽  
Financial Interests

Background. Rapid industrialization and anthropogenic activities such as the unmanaged use of agro-chemicals, fossil fuel burning and dumping of sewage sludge have caused soils and waterways to be severely contaminated with heavy metals. Heavy metals are non-biodegradable and persist in the environment. Hence, remediation is required to avoid heavy metal leaching or mobilization into environmental segments and to facilitate their extraction. Objectives. The present work briefly outlines the environmental occurrence of heavy metals and strategies for using microorganisms for bioremediation processes as reported in the scientific literature. Methods. Databases were searched from different libraries, including Google Scholar, Medline and Scopus. Observations across studies were then compared with the standards for discharge of environmental pollutants. Discussion. Bioremediation employs microorganisms for removing heavy metals. Microorganisms have adopted different mechanisms for bioremediation. These mechanisms are unique in their specific requirements, advantages, and disadvantages, the success of which depends chiefly upon the kind of organisms and the contaminants involved in the process. Conclusions. Heavy metal pollution creates environmental stress for human beings, plants, animals and other organisms. A complete understanding of the process and various alternatives for remediation at different steps is needed to ensure effective and economic processes. Competing interests. The authors declare no competing financial interests.

scholarly journals Acute biotoxicity assessment of heavy metals in sewage sludge based on the glucose consumption of Escherichia coli

2019 ◽  
Vol 6 (1) ◽  
pp. 181769 ◽  
Author(s):  
Yazhu Mi ◽  
Xiangyun Tao ◽  
Xu Zhang ◽  
Youbin Si
Keyword(s):  
Escherichia Coli ◽  
Heavy Metals ◽  
Sewage Sludge ◽  
Synergistic Effects ◽  
Environmental Pollutants ◽  
Glucose Consumption ◽  
Housing Estate ◽  
Antagonistic Effects ◽  
E Coli ◽  
Glucose Meter

As a simple and feasible method for acute biotoxicity assessment, personal glucose meter (PGM) can be successfully applied in the early warning of environmental pollutants in sewage. In this paper, the acute biotoxicity of single and joint heavy metals in sewage and real sludge samples was systematically described based on the glucose metabolism of Escherichia coli ( E. coli ). Results indicated that the biotoxicity order of five single heavy metals in sewage was Hg 2+ > As 3+ > Cu 2+ > Zn 2+ > Cd 2+ . The joint heavy metals of Cu 2+ + Zn 2+ , Cu 2+ + Cd 2+ , and Cu 2+ + Hg 2+ produced synergistic effects, while Cu 2+ + As 3+ and Cd 2+ + Zn 2+ possessed antagonistic effects for the combined biotoxicity. In spiked sludge, Cd 2+ and Zn 2+ owned higher biotoxicity than Cu 2+ and As 3+ . Notably, the electroplate factory and housing estate sludge respectively showed the highest and lowest inhibition rates as 57.4% and 17.7% under the real sludge biotoxicity assessment. These results demonstrated that PGM was a sensitive and portable method, which could be widely used for acute biotoxicity assessment of heavy metals in sewage sludge.

scholarly journals Effects of columbite/tantalite (COLTAN) mining activities on water quality in Edege-Mbeki mining district of Nasarawa state, North Central Nigeria

2019 ◽  
Vol 43 (1) ◽  
Author(s):  
Mohammed Engha Isah ◽  
Nuhu Abdulkadir Abdulmumin ◽  
Paul D. Elaoyi ◽  
Ephraim Audu
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Water Samples ◽  
Environmental Pollutants ◽  
Human Consumption ◽  
Mining District ◽  
Mining Activities ◽  
North Central ◽  
Groundwater Samples ◽  
Surface And Groundwater

Abstract Background The release of environmental pollutants such as heavy metals due to mining activities has received worldwide condemnation. Therefore, understanding the contamination of both surface and groundwater in Edege-Mbeki mining district is very important for the health and wellbeing of its people. Hence, the purpose of this study was to determine the physicochemical parameters of water samples and the level of heavy metals in Edege-Mbeki Columbite/Tantalite (COLTAN) mining site, North Central Nigeria. Results A total of 15 water samples were collected and analyzed in triplicate. The concentrations of five heavy metals (Ni, Mn, Pb, Cd, and Fe) in surface and groundwater samples were measured using atomic absorption spectrophotometer (AA-6800 Shimadzu). The physicochemical properties of the water samples were also examined. The results of the water quality assessments show that the water samples were contaminated with alarming levels of Pb, Cd and Ni. Mean concentrations were Ni (0.008 mg/L), Mn (0.087 mg/L), Pb (0.324 mg/L), Cd (0.029 mg/L), and Fe (0.839 mg/L) in Edege-Mbeki groundwater, while the surface water (mining ponds) had Ni (0.102 mg/L), Mn (0.099 mg/L), Pb (0.358 mg/L), Cd (0.025 mg/L), and Fe (6.99 mg/L). The groundwater samples in Mararaban-Edege which served as the control site had mean concentration levels of Ni (0.032 mg/L), Mn (0.096 mg/L), Pb (0.122 mg/L), Cd (0.039 mg/L), and Fe (0.608 mg/L). The range of pH was found to be from 5.6 ± 0.02 to 6.5 ± 0.12, turbidity was between 39.27 ± 0.29 and 2271 ± 0.00 NTU, and conductivity ranged from 39.27 ± 0.29 to 757.33 ± 5.69 μS/cm, TDS from 25.0 ± 2.3 to 450.67 ± 6.03 mg/L while dissolved oxygen (DO) values from 3.1 ± 0.3 to 3.5 ± 0.3 mg/L. Conclusion This study confirmed that surface and ground water samples in Edege-Mbeki and Mararaban-Edege are not fit for human consumption and other domestic use. Hence, government and community leaders must provide alternative means of water for the people of these communities.

Sign in / Sign up

Export Citation Format

Share Document