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https://www.readbyqxmd.com/read/29904701/cationic-nickel-metal-organic-frameworks-for-adsorption-of-negatively-charged-dye-molecules
#1
Chizoba I Ezugwu, Md Ali Asraf, Xiao Li, Shengwei Liu, Chih-Ming Kao, Serge Zhuiykov, Francis Verpoort
Industrial dye effluents with low biodegradability are highly toxic and carcinogenic on both human and aquatic lives, thus they are detrimental to the biodiversity of environment. Herein, this data set presents the potential of cationic Nickel based MOFs in the adsorption of charged and neutral dye molecules. Data set include a concise description of experimental conditions for the synthesis of imidazolium ligands, 1,3-bis(4-carboxyphenyl)imidazolium chloride (H2 L+ Cl- ) and 1,3-bis(3,5-dicarboxyphenyl)imidazolium chloride (H4 L+ Cl- ), and MOFs...
June 2018: Data in Brief
https://www.readbyqxmd.com/read/29891786/potential-health-risk-of-endocrine-disruptors-in-construction-sector-and-plastics-industry-a-new-paradigm-in-occupational-health
#2
Aleksandra Fucic, Karen S Galea, Radu Corneliu Duca, Mounia El Yamani, Nadine Frery, Lode Godderis, Thórhallur Ingi Halldorsson, Ivo Iavicoli, Sophie Ndaw, Edna Ribeiro, Susana Viegas, Hanns Moshammer
Endocrine disruptors (EDs) belong to large and diverse groups of agents that may cause multiple biological effects associated with, for example, hormone imbalance and infertility, chronic diseases such as diabetes, genome damage and cancer. The health risks related with the exposure to EDs are typically underestimated, less well characterized, and not regulated to the same extent as, for example, carcinogens. The increased production and utilization of identified or suspected EDs in many different technological processes raises new challenges with respect to occupational exposure settings and associated health risks...
June 11, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29886681/-pollution-characteristics-and-health-risk-assessment-of-heavy-metals-in-pm-2-5-in-lanzhou
#3
Q Z Wei, S Li, Q Jia, B Luo, L M Su, Q Liu, X R Yuan, Y H Wang, Y Ruan, J P Niu
Objective: To understand the pollution characteristics and assess the pollution health risks of heavy metals in atmospheric PM(2.5) in Lanzhou. Methods: According to the regional characteristics of air pollution and industrial distribution characteristics in Lanzhou, atmospheric PM(2.5) was sampled monthly in Chengguan and Xigu Districts from January, 2015 to December, 2016. Detected the concentration of PM(2.5) and 12 kinds of elements (Sb, Al, As, Be, Cd, Cr, Hg, Pb, Mn, Ni, Se and Tl) by weighing method and inductively coupled plasma mass spectrometry...
June 6, 2018: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/29886389/survey-on-the-micro-pollutants-presence-in-surface-water-system-of-northern-serbia-and-environmental-and-health-risk-assessment
#4
Biljana D Škrbić, Kiwao Kadokami, Igor Antić
This study demonstrates the occurrence of 940 organic micro-pollutants in surface water of four rivers, one irrigation canal system, and two lakes in Vojvodina Province, the northern part of Serbia, summing in total eighteen samples. The number of detected chemicals ranged from 22 to 84, with 127 micro-pollutants detected at least once, representing 13% of the studied substances. The targeted compounds include n-alkanes, sterols, polycyclic aromatic hydrocarbons (PAHs), organochlorine pesticides polychlorinated biphenyls, pesticides, pharmaceutical active compounds, industrial chemicals, plasticizers, etc...
June 7, 2018: Environmental Research
https://www.readbyqxmd.com/read/29885500/carcinogenic-and-neurotoxic-risks-of-acrylamide-consumed-through-caffeinated-beverages-among-the-lebanese-population
#5
Ghada El-Zakhem Naous, Areej Merhi, Martine I Abboud, Mohamad Mroueh, Robin I Taleb
The present study aims to quantify acrylamide in caffeinated beverages including American coffee, Lebanese coffee, espresso, instant coffee and hot chocolate, and to determine their carcinogenic and neurotoxic risks. A survey was carried for this purpose whereby 78% of the Lebanese population was found to consume at least one type of caffeinated beverages. Gas Chromatography Mass Spectrometry analysis revealed that the average acrylamide level in caffeinated beverages is 29,176 μg/kg sample. The daily consumption of acrylamide from Lebanese coffee (10...
June 6, 2018: Chemosphere
https://www.readbyqxmd.com/read/29879691/abiotic-and-bioaugmented-granular-activated-carbon-for-the-treatment-of-1-4-dioxane-contaminated-water
#6
Michelle A Myers, Nicholas W Johnson, Erick Zerecero Marin, Peerapong Pornwongthong, Yun Liu, Phillip B Gedalanga, Shaily Mahendra
1,4-Dioxane is a probable human carcinogen and an emerging contaminant that has been detected in surface water and groundwater resources. Many conventional water treatment technologies are not effective for the removal of 1,4-dioxane due to its high water solubility and chemical stability. Biological degradation is a potentially low-cost, energy-efficient approach to treat 1,4-dioxane-contaminated waters. Two bacterial strains, Pseudonocardia dioxanivorans CB1190 (CB1190) and Mycobacterium austroafricanum JOB5 (JOB5), have been previously demonstrated to break down 1,4-dioxane through metabolic and co-metabolic pathways, respectively...
June 4, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29878039/exposure-to-wood-dust-microbial-components-and-terpenes-in-the-norwegian-sawmill-industry
#7
Anne Straumfors, Raymond Olsen, Hanne Line Daae, Anani Afanou, Dave McLean, Marine Corbin, Andrea 't Mannetje, Bente Ulvestad, Berit Bakke, Helle Laier Johnsen, Jeroen Douwes, Wijnand Eduard
Sawmill workers are exposed to wood dust (a well-known carcinogen), microorganisms, endotoxins, resin acids (diterpenes), and vapours containing terpenes, which may cause skin irritation, allergy, and respiratory symptoms including asthma. The health effects of most of these exposures are poorly understood as most studies measure only wood dust. The present study assessed these exposures in the Norwegian sawmill industry, which processes predominantly spruce and pine. Personal exposures of wood dust, resin acids, endotoxin, fungal spores and fragments, mono-, and sesquiterpenes were measured in 10 departments in 11 saw and planer mills...
June 7, 2018: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/29876850/promoting-sun-light-induced-photocatalytic-degradation-of-toxic-phenols-by-efficient-and-stable-double-metal-cyanide-nanocubes
#8
Manviri Rani, Uma Shanker
Aromatic substituted phenols and their by-products discharged from numerous industries are of environmental concern due to their toxic, carcinogenic, recalcitrant, and bioaccumulating properties. Therefore, their complete removal from waters by low-cost, efficient, environmentally friendly nanomaterial-based treatment techniques is desirable. Double metal cyanide complexes (DMCC) are the extremely useful heterogeneous and recoverable catalyst. Hence, green route has been developed for several DMCC and their photocatalytic efficiency was evaluated for degradation of toxic phenols...
June 6, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29846897/concentration-characteristics-source-apportionment-and-oxidative-damage-of-pm-2-5-bound-pahs-in-petrochemical-region-in-xinjiang-nw-china
#9
Yusan Turap, Dilinuer Talifu, Xinming Wang, Tuergong Aierken, Suwubinuer Rekefu, Hao Shen, Xiang Ding, Mailikezhati Maihemuti, Yalkunjan Tursun, Wei Liu
Polycyclic aromatic hydrocarbons (PAHs) are of considerable concern due to their potential as human carcinogens. Thus, determining the characteristics, potential source, and examining the oxidative capacity of PAHs to protect human health is essential. This study investigated the PM2.5 -bound PAHs at Dushanzi, a large petrochemical region in Xinjiang as well as northwest China. A total of 33 PM2.5 samples with 13 PAHs, together with molecular tracers (levoglucosan, and element carbon), were analyzed during the non-heating and heating periods...
May 30, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29845565/associations-between-sperm-quality-dna-damage-and-cyp1a1-gstt1-and-gstm1-polymorphisms-with-1-hydroxypyrene-urinary-levels-in-men-occupationally-exposed-to-polycyclic-aromatic-hydrocarbons
#10
Rogelio Recio-Vega, Edgar Olivas-Calderon, Gladis Michel-Ramirez, Rebeca Isabel Martinez-Salinas, Martha Patricia Gallegos-Arreola, Guadalupe Leticia Ocampo-Gomez, Rebeca Perez-Morales
PURPOSE: During recent decades, several reports have suggested a decrease in semen quality and DNA damage due in part to environmental toxicants and industrial chemicals. Among these xenobiotics, polycyclic aromatic hydrocarbons (PAHs) are of particular concern because of their remarkable mutagenic and carcinogenic properties and because several experimental and epidemiological studies have reported adverse effects of PAHs on male reproductive health and DNA structure. The aim of the study was to evaluate the association between 1-hydroxypyrene (1-OHP) urinary levels and sperm quality, DNA damage and the frequency of CYP1A1, GSTT1, and GSTM1 polymorphisms...
May 29, 2018: International Archives of Occupational and Environmental Health
https://www.readbyqxmd.com/read/29843444/multi-target-risk-assessment-of-potentially-toxic-elements-in-farmland-soil-based-on-the-environment-ecological-health-effect
#11
Zhongyang Wang, Bo Meng, Wei Zhang, Jinheng Bai, Yingxin Ma, Mingda Liu
There are potential impacts of Potentially Toxic Elements (PTEs) (e.g., Cd, Cr, Ni, Cu, As, Zn, Hg, and Pb) in soil from the perspective of the ecological environment and human health, and assessing the pollution and risk level of soil will play an important role in formulating policies for soil pollution control. Lingyuan, in the west of Liaoning Province, China, is a typical low-relief terrain of a hilly area. The object of study in this research is the topsoil of farmland in this area, of which 71 soil samples are collected...
May 28, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29842907/sterigmatocystin-a-mycotoxin-to-be-seriously-considered
#12
REVIEW
César Horacio Díaz Nieto, Adrian Marcelo Granero, María Alicia Zon, Héctor Fernández
Sterigmatocystin is a carcinogenic compound that affects several species of crops and several species of experimental animals. The sterigmatocystin biosynthetic pathway is the best known and most studied. The International Agency for Research on Cancer classifies sterigmatocystin in the Group 2B. Three groups of analytical methods to determine sterigmatocystin in food can be found: chromatographic, ELISA immunoassays and chemical sensors. In addition, sterigmatocystin is a precursor of aflatoxin B1 in those cases where cereals and/or food are contaminated with fungi capable of producing aflatoxins...
May 26, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29802419/characterization-and-risk-analysis-of-metals-associated-with-urban-dust-in-rawang-malaysia
#13
Sarva Mangala Praveena
This study was designed to determine the particle size distribution and develop road dust index combining source and transport factors involving road dust for dust pollution quantification in Rawang. Principal component analysis (PCA) was applied to identify possible sources of potentially toxic elements and spot major pollution areas in Rawang. The health risks (carcinogenic and noncarcinogenic) to adults and children were assessed using the hazard index and total lifetime cancer Risk, respectively. A total of 75 road dust samples were collected and particle sizes (1000, 500, 250, 160, 125 and 63 µm) were determined...
May 25, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/29793188/prioritization-of-reproductive-toxicants-in-unconventional-oil-and-gas-operations-using-a-multi-country-regulatory-data-driven-hazard-assessment
#14
Salmaan H Inayat-Hussain, Masao Fukumura, A Muiz Aziz, Chai Meng Jin, Low Wei Jin, Rolando Garcia-Milian, Vasilis Vasiliou, Nicole C Deziel
BACKGROUND: Recent trends have witnessed the global growth of unconventional oil and gas (UOG) production. Epidemiologic studies have suggested associations between proximity to UOG operations with increased adverse birth outcomes and cancer, though specific potential etiologic agents have not yet been identified. To perform effective risk assessment of chemicals used in UOG production, the first step of hazard identification followed by prioritization specifically for reproductive toxicity, carcinogenicity and mutagenicity is crucial in an evidence-based risk assessment approach...
May 21, 2018: Environment International
https://www.readbyqxmd.com/read/29792945/cross-linking-by-epichlorohydrin-and-diepoxybutane-correlates-with-cytotoxicity-and-leads-to-apoptosis-in-human-leukemia-hl-60-cells
#15
Phuong M Le, Vanesa L Silvestri, Samuel C Redstone, Jordanne B Dunn, Julie T Millard
The bifunctional alkylating agents epichlorohydrin (ECH) and diepoxybutane (DEB) have been linked to increased cancer risks in industrial workers. These compounds react with DNA and proteins, leading to genotoxic effects. We used the comet assay to monitor formation of cross-links in HL-60 cells treated with ECH, DEB, and the structurally related anti-cancer drug mechlorethamine (HN2). We report a time- and dose-dependent cytotoxicity that correlated with cross-linking activity, following the order HN2 > DEB > ECH...
May 21, 2018: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29781779/comparisons-of-false-negative-rates-from-a-trend-test-alone-and-from-a-trend-test-jointly-with-a-control-high-groups-pairwise-test-in-the-determination-of-the-carcinogenicity-of-new-drugs
#16
Karl K Lin, Mohammad A Rahman
Interest has been expressed in using a joint test procedure that requires that the results of both a trend test and a pairwise comparison test between the control and the high groups be statistically significant simultaneously at the levels of significance recommended in the FDA 2001 draft guidance for industry document for the separate tests in order for the drug effect on the development of an individual tumor type to be considered as statistically significant. Results of our simulation studies show that there is a serious consequence of large inflations of the false negative rate through large decreases of false positive rate in the use of the above joint test procedure in the final interpretation of the carcinogenicity potential of a new drug if the levels of significance recommended for separate tests are used...
May 21, 2018: Journal of Biopharmaceutical Statistics
https://www.readbyqxmd.com/read/29778012/reactive-oxygen-species-ros-activity-of-ambient-fine-particles-pm-2-5-measured-in-seoul-korea
#17
Jieun Park, Eun Ha Park, James J Schauer, Seung-Muk Yi, Jongbae Heo
Substantial increase in level of particulate matter has raised concerns in South Korea recently. Ambient particulate matter is classified as Group I carcinogen (IARC, 2013) and multiple epidemiological studies has demonstrated adverse health effects due to exposure of particulate matter. Fine particulate matter (PM2.5 ) which has a diameter <2.5 μm is likely to penetrate deeply into lung and is known to be eliciting adverse health effects. A number of epidemiological studies have been conducted on adverse health effects of PM-related diseases and mortality rate, yet particulate matter (PM)-induced reactive oxygen species (ROS) activity at the cellular level has not been actively studied in Korea...
May 16, 2018: Environment International
https://www.readbyqxmd.com/read/29775975/misleading-new-insights-into-the-chrysotile-debate
#18
H-J Woitowitz, X Baur
Although there is no dispute among independent scientists about the carcinogenic and fibrogenic effects of chrysotile, the asbestos industry has been continuously and successfully acting to cast doubts on its harm. Another approach including asbestos insurance entities is to refuse compensation by raising the bar and fight criminal prosecution for asbestos-related diseases by the help of paid scientists. A recent publication on asbestos fibre burden in human lungs fits well in this context. The claim that chrysotile fibres are biopersistent in human lung is not based on the data provided by these authors, and, additionally, exhibits serious inconsistencies and obvious mismeasurements and significant methodological problems...
May 18, 2018: Pneumologie
https://www.readbyqxmd.com/read/29772681/global-asbestos-disaster
#19
Sugio Furuya, Odgerel Chimed-Ochir, Ken Takahashi, Annette David, Jukka Takala
Introduction : Asbestos has been used for thousands of years but only at a large industrial scale for about 100⁻150 years. The first identified disease was asbestosis, a type of incurable pneumoconiosis caused by asbestos dust and fibres. The latest estimate of global number of asbestosis deaths from the Global Burden of Disease estimate 2016 is 3495. Asbestos-caused cancer was identified in the late 1930's but despite today's overwhelming evidence of the strong carcinogenicity of all asbestos types, including chrysotile, it is still widely used globally...
May 16, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29770943/contamination-of-scots-pine-forests-with-polycyclic-aromatic-hydrocarbons-on-the-territory-of-industrial-city-of-siberia-russia
#20
Olga Vladimirovna Kalugina, Tatiana Alekseevna Mikhailova, Olga Vladimirovna Shergina
Anthropogenic contamination with polycyclic aromatic hydrocarbons (PAH) coming from a powerful aluminum smelter has been estimated by the accumulation of these substances (17 substances: phenanthrene, fluoranthene, pyrene, chrysene, acenaphthylene, acenaphthene, anthracene, fluorene, benz[а]anthracene, benz[b]fluoranthene, benz[k]fluoranthene, benz[а]pyrene, benz[е]pyrene, perylene, indeno[1,2,3-c,d]pyrene, benz[g,h,i]perylene, dibenz[a,h]anthracene) in needles of Scots pine (Pinus sylvestris L.) in the residential areas of Bratsk, East Siberia, Russia...
May 17, 2018: Environmental Science and Pollution Research International
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