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Heavy metal screen tests

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https://www.readbyqxmd.com/read/28940054/framework-for-assessment-and-phytoremediation-of-asbestos-contaminated-sites
#1
Cédric Gonneau, Kinsey Miller, Sanjay K Mohanty, Rengyi Xu, Wei-Ting Hwang, Jane K Willenbring, Brenda B Casper
We examine the feasibility of phytoremediation as an alternative strategy to limit the exposure of asbestos in site with asbestos-containing materials. We collected soils from four locations from two sites-one with naturally occurring asbestos, and another, a superfund site, where asbestos-containing materials were disposed over decades-and performed ecotoxicology tests. We also performed two experiments with crop cultivar and two grasses from serpentine ecotype and cultivar to determined best choice for phytoremediation...
September 22, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28836031/a-field-screening-test-for-the-assessment-of-concentrations-and-mobility-of-potentially-toxic-elements-in-soils-a-case-study-on-urban-soils-from-rome-and-novi-sad
#2
Maria Rita Montereali, Valentina Pinto, Francesca Schiavella, Giovanna Armiento, Massimo Angelone, Cinzia Crovato, Maja Manojlović, Ranko Čabilovski, Carlo Cremisini
The increasing demand for environmental pollution control results in the development and use of new procedures for the determination of dangerous chemicals. Simple screening methods, which can be used directly in the field for a preliminary assessment of soil contamination, seem to be extremely advantageous. In our laboratory, we developed and optimized a rapid test for a preliminary evaluation of both the concentration and the mobility of some potentially toxic metals in soils. This screening test consists of a single extraction of the soil sample with a buffer solution, followed by the titration of the extracted solution with dithizone to determine the contents of bi-valent heavy metals (such as Pb, Cu, Zn, and Cd)...
August 23, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28812956/toxicity-identification-and-evaluation-for-the-effluent-from-a-nonmetallic-mineral-mining-facility-in-korea-using-d-magna
#3
Sungjong Lee, Hongjoo Ha, JinKyung Hong, Guyoung Kang, Chunsang Hong
Industrial wastewater has attracted increasing attention in recent years because of its impact on ecosystems and human health. Whole-effluent tests are generally used to monitor toxicities of unknown chemicals and conventional pollutants from industrial effluent discharges. This study described identification evaluation (TIE) procedures to determine the acute toxicity of a nonmetallic mineral mining facility effluent that was toxic to Daphnia magna. In the characterization step (TIE phase I), toxic effects of heavy metals, organic compounds, oxidants, volatile organic compounds, suspended solids, and ammonia were screened...
January 1, 2017: Toxicology and Industrial Health
https://www.readbyqxmd.com/read/28802093/clinical-aspects-of-opium-adulterated-with-lead-in-iran-a-review
#4
REVIEW
Samira Alinejad, Jan Aaseth, Mohammad Abdollahi, Hossein Hassanian-Moghaddam, Omid Mehrpour
Adulteration of drugs with poisonous substances during production or consumption has caused numerous health problems. Among contaminants that have the potential of producing poisonous effects are the heavy metals lead, arsenic and thallium that make up an important group of toxic substances. The emergence of these new health problems related to opioid abuse has precipitated this MiniReview on the status of the most hazardous and common opioid adulterants. In fact, adulterated opium is a major public health problem and can threaten the health of users...
August 12, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28759788/isolation-of-vanadium-resistance-endophytic-bacterium-pre01-from-pteris-vittata-in-stone-coal-smelting-district-and-characterization-for-potential-use-in-phytoremediation
#5
Liang Wang, Hai Lin, Yingbo Dong, Yinhai He, Chenjing Liu
This study investigates the V-resistant endophytic bacteria isolated from V-accumulator Pteris vittata grown on stone coal smelting district. Among all the ten isolates, the strain PRE01 identified as Serratia marcescens ss marcescens by Biolog GEN III MicroPlate™ was screened out by ranking first in terms of heavy metal resistance and plant growth promoting traits. The S. marcescens PRE01 had strong V, Cr and Cd resistance especially for V up to 1500mg/L. In addition, it exhibited ACC deaminase activity, siderophore production and high indoleacetic acid production (60...
July 24, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28699782/bacterial-siderophores-promote-plant-growth-screening-of-catechol-and-hydroxamate-siderophores
#6
Anna Grobelak, Joanna Hiller
The aim of the study was to determine the quality and quantity of siderophores produced by bacteria isolated from plants' roots. The second aim was to determine the effect of siderophores on plants growth (Festuca rubra L. and Brassica napus L.). The study was carried out using bacteria isolated from roots of: Arabidopsis thaliana L., F. rubra, and Agrostis capillaris L., growing on the heavy metals contaminated area. The chrome azurol sulfonate (CAS) test, Arnow's test for catechol siderophores, and Csaksy's test for hydroxamate siderophores were performed...
September 2, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/28511314/-determination-of-cadmium-in-human-urine-by-colloidal-gold-immunochromatographic-assay
#7
G Y Fu, J Gong, X X Leng
Objective: To establish the method of colloidal gold immunochrom atographic assay for detecting cadmium ions rapidly. Methods: The anti-cadmium ion monoclonal antibody-gold conjugate was labeled on the binding pad, cadmium ion hapten and goat anti-mouse IgG were coated on nitrocellulose membrane as the detection line (T line) and quality control line (C line) respectively. The sample pad, colloidal gold bonding pad, nitrocellulose membrane and absorption pad were orderly assembled on the PVC board to cut into a test paper strip...
March 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/28330266/biosorption-of-lead-copper-and-cadmium-using-the-extracellular-polysaccharides-eps-of-bacillus-sp-from-solar-salterns
#8
Syed Shameer
Extracellular Polysaccharides (EPS) from both prokaryotes and eukaryotes have a great deal of research interest as they protect the producer from different stresses including antibiotics, ionic stress, desiccation and assist in bio-film formation, pathogenesis, adhesion, etc. In this study haloalkaliphilic Bacillus sp., known to cope with osmophilic stress, was selected and screened for EPS production. The EPS were isolated, partially purified and chemical characteristics were documented using liquid FT-IR followed by assessment of heavy metal biosorption (lead, copper and cadmium) using Atomic Absorption Spectroscopy (AAS)...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28050770/managing-dredged-material-in-the-coastal-zone-of-the-baltic-sea
#9
Marta Staniszewska, Helena Boniecka
This article deals with the legal and practical recommendations for the management of dredged material in the riparian countries of the Baltic Sea. The recommendations are contained in three conventions: LC, 2000. London Convention (1972), Convention on the Protection of the Marine Environment of the Baltic Sea area (Helsinki Convention) (1992), the OSPAR Convention (1972). Different approaches to evaluating the contamination level of dredge spoils, used by the Baltic Sea riparian countries, have been characterized...
January 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/27832436/screening-of-heavy-metal-containing-waste-types-for-use-as-raw-material-in-arctic-clay-based-bricks
#10
Louise Josefine Belmonte, Lisbeth M Ottosen, Gunvor Marie Kirkelund, Pernille Erland Jensen, Andreas Peter Vestbø
In the vulnerable Arctic environment, the impact of especially hazardous wastes can have severe consequences and the reduction and safe handling of these waste types are therefore an important issue. In this study, two groups of heavy metal containing particulate waste materials, municipal solid waste incineration (MSWI) fly and bottom ashes and mine tailings (i.e., residues from the mineral resource industry) from Greenland were screened in order to determine their suitability as secondary resources in clay-based brick production...
November 10, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27774412/100%C3%A2-hz-neutron-radiography-at-the-boa-beamline-using-a-parabolic-focussing-guide
#11
Pavel Trtik, Manuel Morgano, Roman Bentz, Eberhard Lehmann
The recent developments in scientific complementary metal oxide semiconductor (sCMOS) detector technology allow for imaging of relevant processes with very high temporal resolution with practically negligible readout time. However, it is neutron intensity that limits the high temporal resolution neutron imaging. In order to partially overcome the neutron intensity problem for the high temporal resolution imaging, a parabolic neutron focussing guide was utilized in the test arrangement and placed upstream the detector in such a manner that the focal point of the guide was positioned slightly behind the scintillator screen...
2016: MethodsX
https://www.readbyqxmd.com/read/27716469/characterization-of-nonpathogenic-listeria-species-isolated-from-food-and-food-processing-environment
#12
Dorota Korsak, Magdalena Szuplewska
A total of 127 Listeria isolates from food and food processing environments, including 75 L. innocua, 49 L. welshimeri, 2 L. seeligeri and 1L. grayi were tested for susceptibility to eight antimicrobials, benzalkonium chloride (BC), cadmium and arsenic. The isolates were also screened for the presence of extrachromosomal genetic elements - plasmids, and their restriction pattern types were determined. All strains were susceptible to ampicillin, ciprofloxacin, erythromycin, gentamicin, rifampicin, trimethoprim and vancomycin...
December 5, 2016: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/27710430/the-isolation-and-functional-identification-on-producing-cellulase-of-pseudomonas-mendocina
#13
Jianfeng Zhang, Hongyan Hou, Guang Chen, Shusheng Wang, Jiejing Zhang
The straw can be degraded efficiently into humus by powerful enzymes from microorganisms, resulting in the accelerated circulation of N,P,K and other effective elements in ecological system. We isolated a strain through screening the straw degradation strains from natural humic straw in the low temperature area in northeast of china, which can produce cellulase efficiently. The strain was identified as Pseudomonas mendocina by using morphological, physiological, biochemical test, and molecular biological test, with the functional clarification on producing cellulase for Pseudomonas mendocina for the first time...
September 2, 2016: Bioengineered
https://www.readbyqxmd.com/read/27677998/an-ultrasound-assisted-procedure-for-fast-screening-of-mobile-fractions-of-cd-pb-and-ni-in-soil-insight-into-method-optimization-and-validation
#14
Barbara Leśniewska, Marta Krymska, Ewelina Świerad, Józefa Wiater, Beata Godlewska-Żyłkiewicz
A fast ultrasound-assisted sequential extraction (UASE) procedure for the determination of cadmium, lead and nickel fractions in soil was developed and fully validated. The working parameters of an ultrasound probe were optimized by comparing the content of metals in soil extracts obtained by the UASE procedure with that obtained by the conventional (with the aid of a vertical rotor) modified Community Bureau of Reference (BCR) procedure. The content of metals in soil fractions was determined by electrothermal atomic absorption spectrometry...
December 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27437086/allele-frequencies-of-the-single-nucleotide-polymorphisms-related-to-the-body-burden-of-heavy-metals-in-the-korean-population-and-their-ethnic-differences
#15
Sang-Yong Eom, Ji-Ae Lim, Yong-Dae Kim, Byung-Sun Choi, Myung Sil Hwang, Jung-Duck Park, Heon Kim, Ho-Jang Kwon
This study was performed to select single nucleotide polymorphisms (SNPs) related to the body burden of heavy metals in Koreans, to provide Korean allele frequencies of selected SNPs, and to assess the difference in allele frequencies with other ethnicities. The candidate-gene approach method and genome-wide association screening were used to select SNPs related to the body burden of heavy metals. Genotyping analysis of the final 192 SNPs selected was performed on 1,483 subjects using the VeraCode Goldengate assay...
July 2016: Toxicological Research
https://www.readbyqxmd.com/read/27376991/bioassay-directed-identification-of-toxicants-in-sediments-of-liaohe-river-northeast-china
#16
Yan He, Jian Xu, Changsheng Guo, Jiapei Lv, Yuan Zhang, Wei Meng
Contaminants accumulated in sediments may directly harm benthic organisms, however, the specific contaminants responsible for adverse effects have been poorly described. In this study, a bioassay-directed analysis combined with toxicity tests and chemistry analysis was conducted to determine the compounds eliciting the greatest toxicological effect in the sediments in Liaohe River, northeast China. A total of 24 sediment samples were examined to determine their acute toxicity to midge Chironomus tentans (C...
December 2016: Environmental Pollution
https://www.readbyqxmd.com/read/27272353/quality-control-and-complication-screening-programme-of-chinese-medicinal-drugs-at-the-first-german-hospital-of-traditional-chinese-medicine-a-retrospective-analysis
#17
Dieter Melchart, Stefan Hager, Jingzhang Dai, Wolfgang Weidenhammer
BACKGROUND: The use of drugs derived from plants is a cornerstone of Traditional Chinese Medicine (TCM). Yet, too little is known about risk and safety of Chinese medicinal drugs (CMD). Therefore, the TCM hospital Bad Kötzting has developed a quality control and complication screening programme in order to ensure a safe administration of TCM drugs to their patients. METHODS: All Chinese medicinal drugs delivered to the hospital between September 1, 2012 and December 31, 2013 entered the quality control program and were screened for microbial contamination, aflatoxin, pesticides and heavy metals...
2016: Forschende Komplementärmedizin, Research in Complementary Medicine
https://www.readbyqxmd.com/read/27208651/growing-knowledge-of-using-embryonic-stem-cells-as-a-novel-tool-in-developmental-risk-assessment-of-environmental-toxicants
#18
Mohammad Amin Rezvanfar, Mahshid Hodjat, Mohammad Abdollahi
Developmental toxicology is an important area of novel toxicology. In recent years, there have been big concerns toward the increasing exposure to pharmaceutical agents, food additives, pesticides, occupational toxicants, and environmental pollutants, as well as their possible association with all aspects of male or female-mediated transient or permanent defects in progeny. Therefore, it is of great importance to look for new predictive models to evaluate environmental toxicants before they can harm the human health and embryo development...
August 1, 2016: Life Sciences
https://www.readbyqxmd.com/read/27068917/variation-in-genotoxic-susceptibility-and-biomarker-responses-in-cirrhinus-mrigala-and-catla-catla-from-different-ecological-niches-of-the-chenab-river
#19
Bilal Hussain, Tayyaba Sultana, Salma Sultana, Shahid Mahboob, K A Al-Ghanim, Shahid Nadeem
A large number of methods have been applied to evaluate genotoxic damage in different aquatic species. Comet assay, as a method for detecting DNA alterations, and micronucleus test, as an index of chromosomal damage are the most widely used and authentic methods in laboratory and field studies. The primary objective of the study was to evaluate the genotoxic effects of heavy metals generated by toxic industrial effluents and various kinds of pollutants from urban and agricultural areas and domestic waste on Catla catla and Cirrhinus mrigala due to water pollution in the Chenab River, Pakistan...
July 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27039199/development-of-quantitative-immunochromatographic-kit-and-visual-screening-immunoassay-strip-for-cadmium
#20
Hidekazu Arai, Katsuo Nakamura, Yasuko Yoshida, Kei Tawarada
Cadmium is a highly toxic heavy metal for humans. In 2006, the Codex Alimentarius Commission set the international standard value of Cd contained in polished rice at 0.4 mg kg(-1), thus requiring the monitoring of Cd in food. We developed two types of Cd immunochromatographic kit by using anti-(Cd-EDTA) antibody. One is the quantitative Cd immunochromatographic device which can precisely measure Cd concentrations. The other is the Cd screening strip that enables visible evaluation of Cd exceeding 0.003 mg L(-1)...
September 2016: Analytical and Bioanalytical Chemistry
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