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Industrial hygiene

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https://www.readbyqxmd.com/read/27903280/a-critical-review-of-the-current-knowledge-regarding-the-biological-impact-of-nanocellulose
#1
REVIEW
C Endes, S Camarero-Espinosa, S Mueller, E J Foster, A Petri-Fink, B Rothen-Rutishauser, C Weder, M J D Clift
Several forms of nanocellulose, notably cellulose nanocrystals and nanofibrillated cellulose, exhibit attractive property matrices and are potentially useful for a large number of industrial applications. These include the paper and cardboard industry, use as reinforcing filler in polymer composites, basis for low-density foams, additive in adhesives and paints, as well as a wide variety of food, hygiene, cosmetic, and medical products. Although the commercial exploitation of nanocellulose has already commenced, little is known as to the potential biological impact of nanocellulose, particularly in its raw form...
December 1, 2016: Journal of Nanobiotechnology
https://www.readbyqxmd.com/read/27862114/a-bayesian-model-and-stochastic-exposure-dose-estimation-for-relative-exposure-risk-comparison-involving-asbestos-containing-dropped-ceiling-panel-installation-and-maintenance-tasks
#2
Fred W Boelter, Yulin Xia, Jacob D Persky
Assessing exposures to hazards in order to characterize risk is at the core of occupational hygiene. Our study examined dropped ceiling systems commonly used in schools and commercial buildings and lay-in ceiling panels that may have contained asbestos prior to the mid to late 1970s. However, most ceiling panels and tiles do not contain asbestos. Since asbestos risk relates to dose, we estimated the distribution of eight-hour TWA concentrations and one-year exposures (a one-year dose equivalent) to asbestos fibers (asbestos f/cc-years) for five groups of workers who may encounter dropped ceilings: specialists, generalists, maintenance workers, nonprofessional do-it-yourself (DIY) persons, and other tradespersons who are bystanders to ceiling work...
November 10, 2016: Risk Analysis: An Official Publication of the Society for Risk Analysis
https://www.readbyqxmd.com/read/27862001/can-water-disinfection-prevent-the-transmission-of-infectious-koi-herpesvirus-to-na%C3%A3-ve-carp-a-case-report
#3
S M Bergmann, E S Monro, J Kempter
Hygienic measures such as disinfection are important tools for the maintenance of fish health in aquaculture. While little information is available on the disinfection of water intended for fish containment, Huwa-San(®) , a disinfectant used in food and water industries, was used for daily treatment at concentrations of approximately 60 ppm over a total period of 3 months (experiment 1) with a 3-week treatment-free interval after 2 months (experiment 2). During this period, koi herpesvirus (KHV) was added to the water of two aquaria, one used as a normal contact control, the other one receiving daily water disinfectant treatments that prevented KHV infection of carp...
November 16, 2016: Journal of Fish Diseases
https://www.readbyqxmd.com/read/27853715/differences-in-chemical-physical-and-microbiological-characteristics-of-italian-burrata-cheeses-made-in-artisanal-and-industrial-plants-of-apulia-region
#4
Stefano Rea, Leonardo Marino, Roberta Stocchi, Raffaella Branciari, Anna Rita Loschi, Dino Miraglia, David Ranucci
The burrata cheese is a traditional product from Southern Italy, consisting of an envelope of pasta filata (stretched curd) filled with cream and pasta filata strips (usually leftovers from mozzarella production). Physical [water activity (aw), pH], chemical (moisture, NaCl content) and microbiological [total viable count (TVC), Listeria monocytogenes, Salmonella spp., Yersinia enterocolitica, Bacillus cereus, Escherichia coli, Enterobacteriaceae, coagulase-positive staphylococci] characteristics of burrata cheeses manufactured in artisanal and industrial plants were evaluated...
June 3, 2016: Italian Journal of Food Safety
https://www.readbyqxmd.com/read/27816242/short-communication-investigation-into-mycobacterium-avium-ssp-paratuberculosis-in-pasteurized-milk-in-italy
#5
A Serraino, P Bonilauri, F Giacometti, M Ricchi, G Cammi, S Piva, V Zambrini, A Canever, N Arrigoni
This study investigated the presence of viable Mycobacterium avium ssp. paratuberculosis (MAP) in pasteurized milk produced by Italian industrial dairy plants to verify the prediction of a previously performed risk assessment. The study analyzed 160 one-liter bottles of pasteurized milk from 2 dairy plants located in 2 different regions. Traditional cultural protocols were applied to 500 mL of pasteurized milk for each sample. The investigation focused also on the pasteurization parameters and data on the microbiological characteristics of raw milk (total bacterial count) and pasteurized milk (Enterobacteriaceae and Listeria monocytogenes)...
November 2, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27808662/elemental-properties-of-coal-slag-and-measured-airborne-exposures-at-two-coal-slag-processing-facilities
#6
Christopher Mugford, Randy Boylstein, Jenna L Gibbs
In 1974, the National Institute for Occupational Safety and Health recommended a ban on the use of silica sand abrasives containing >1% silica due to the risk of silicosis. This gave rise to substitutes including coal slag. An Occupational Safety and Health Administration investigation in 2010 uncovered a case cluster of suspected pneumoconiosis in four former workers at a coal slag processing facility in Illinois, possibly attributable to occupational exposure to coal slag dust. This article presents the results from a National Institute for Occupational Safety and Health industrial hygiene survey at the same coal slag processing facility and a second facility...
November 3, 2016: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/27801802/water-related-impacts-of-climate-change-on-agriculture-and-subsequently-on-public-health-a-review-for-generalists-with-particular-reference-to-pakistan
#7
REVIEW
Toqeer Ahmed, Miklas Scholz, Furat Al-Faraj, Wajeeha Niaz
Water-related impacts due to change in climatic conditions ranging from water scarcity to intense floods and storms are increasing in developing countries like Pakistan. Water quality and waterborne diseases like hepatitis, cholera, typhoid, malaria and dengue fever are increasing due to chaotic urbanization, industrialization, poor hygienic conditions, and inappropriate water management. The morbidity rate is high due to lack of health care facilities, especially in developing countries. Organizations linked to the Government of Pakistan (e...
October 27, 2016: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/27790200/staphylococcus-aureus-entrance-into-the-dairy-chain-tracking-s-aureus-from-dairy-cow-to-cheese
#8
Judith Kümmel, Beatrix Stessl, Monika Gonano, Georg Walcher, Othmar Bereuter, Martina Fricker, Tom Grunert, Martin Wagner, Monika Ehling-Schulz
Staphylococcus aureus is one of the most important contagious mastitis pathogens in dairy cattle. Due to its zoonotic potential, control of S. aureus is not only of great economic importance in the dairy industry but also a significant public health concern. The aim of this study was to decipher the potential of bovine udder associated S. aureus as reservoir for S. aureus contamination in dairy production and processing. From 18 farms, delivering their milk to an alpine dairy plant for the production of smeared semi-hard and hard cheese...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27788747/the-risk-of-bacterial-infection-after-tattooing
#9
Ralf Dieckmann, Ides Boone, Stefan O Brockmann, Jens A Hammerl, Annette Kolb-Mäurer, Matthias Goebeler, Andreas Luch, Sascha Al Dahouk
BACKGROUND: Tattooing is a globally growing trend. Overall prevalence among adults in industrialized countries is around 10-20%. Given the high and increasing numbers of tattooed people worldwide, medical and public health implications emerging from tattooing trends require greater attention not only by the public, but also by medical professionals and health policy makers. METHODS: We performed a systematic review of the literature on tattooassociated bacterial infections and bacterial contamination of tattoo inks...
October 7, 2016: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/27784837/injection-site-lesion-prevalence-and-potential-risk-factors-in-uk-beef-cattle
#10
E Cresswell, J Remnant, A Butterworth, W Wapenaar
Injectable veterinary medicinal products (VMPs) are widely used in cattle in the UK, and in particular vaccines are often used on large numbers of animals in the herd. The formation of injection-site lesions (ISLs) is a risk when using injectable products and has potential consequences for meat quality, animal welfare and beef industry income. This study used carcase observation in four abattoirs in England to determine ISL prevalence in beef cattle. Additionally, a questionnaire survey was used to investigate vaccination technique among UK beef farmers...
October 26, 2016: Veterinary Record
https://www.readbyqxmd.com/read/27771252/on-the-thickness-and-nanomechanical-properties-of-salivary-pellicle-formed-on-tooth-enamel
#11
Y F Zhang, D Y Li, J X Yu, H T He
OBJECTIVE: To determine the thickness and nanomechanical properties of salivary pellicle formed on tooth enamel. METHODS: In vitro adsorption experiments were conducted by immersing enamel samples in centrifuged saliva for 1min, and then the nanomechanical properties of the salivary pellicle/tooth enamel system were measured firstly using nanoindentation based on a continuous stiffness measurement technique. Finally, a model was proposed to obtain the thickness and the intrinsic nanohardness of this biofilm...
October 19, 2016: Journal of Dentistry
https://www.readbyqxmd.com/read/27760123/household-coverage-of-fortified-staple-food-commodities-in-rajasthan-india
#12
Grant J Aaron, Prahlad R Sodani, Rajan Sankar, John Fairhurst, Katja Siling, Ernest Guevarra, Alison Norris, Mark Myatt
A spatially representative statewide survey was conducted in Rajasthan, India to assess household coverage of atta wheat flour, edible oil, and salt. An even distribution of primary sampling units were selected based on their proximity to centroids on a hexagonal grid laid over the survey area. A sample of n = 18 households from each of m = 252 primary sampling units PSUs was taken. Demographic data on all members of these households were collected, and a broader dataset was collected about a single caregiver and a child in the first 2 years of life...
2016: PloS One
https://www.readbyqxmd.com/read/27756122/a-call-for-action-from-workers-local-residents-and-consumers-a-safe-society-from-toxic-chemicals
#13
Shinbum Kim, Sanghyuk Im, Youngeun Choi, Soomi Park, Jaesoon Hyun, Kyung Seok Lee, Sunimm Lee, Sung-Nan Lee, Jeongri Seo, Ju Hee Kim, Hyunsun Na, Minsun Kim
No abstract text is available yet for this article.
2016: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/27734286/developing-novel-antimicrobial-and-antiviral-textile-products
#14
Zeynep Ustaoglu Iyigundogdu, Okan Demir, Ayla Burcin Asutay, Fikrettin Sahin
In conjunction with an increasing public awareness of infectious diseases, the textile industry and scientists are developing hygienic fabrics by the addition of various antimicrobial and antiviral compounds. In the current study, sodium pentaborate pentahydrate and triclosan are applied to cotton fabrics in order to gain antimicrobial and antiviral properties for the first time. The antimicrobial activity of textiles treated with 3 % sodium pentaborate pentahydrate, 0.03 % triclosan, and 7 % Glucapon has been investigated against a broad range of microorganisms including bacteria, yeast, and fungi...
October 12, 2016: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/27713737/development-of-a-method-to-determine-the-effectiveness-of-cleaning-agents-in-removal-of-biofilm-derived-spores-in-milking-system
#15
Ievgeniia Ostrov, Avraham Harel, Solange Bernstein, Doron Steinberg, Moshe Shemesh
Microbial damages caused by biofilm forming bacteria in the dairy industry are a fundamental threat to safety and quality of dairy products. In order to ensure the optimal level of equipment hygiene in the dairy industry, it is necessary to determine the biofilm removal efficiency of cleaning agents used for cleaning-in-place (CIP) procedures. However, currently there is no standard method available for evaluating and comparing cleaning agents for use in CIP procedures in the dairy industry under realistic conditions...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27689929/when-and-how-to-intervene-in-the-caries-process
#16
H Meyer-Lueckel, S Paris
The decrease in caries prevalence in many industrialized countries and the improved knowledge about the etiology and pathogenesis of caries have shifted the focus of caries therapy over the past decades toward less invasive approaches. Studies on caries progression indicate that it is generally quite slow in most patients today which should lead to a reconsideration of the practice of early invasive intervention. Today noninvasive (eg, fluorides) and microinvasive (occlusal sealing, proximal infiltration) therapeutic options that address etiological factors are gaining importance...
September 2016: Operative Dentistry
https://www.readbyqxmd.com/read/27682660/-an-investigation-of-the-application-of-hygienic-standards-for-the-design-of-industrial-enterprises-gbz-1-2010
#17
Y Lu, M Zhang
Objective: To study the applicability, the high frequency used content, the feasibility, and issues needed to be solved of the standard of GBZ 1-2010, aiming to provide technical evidence for the revision of GBZ1. Methods: In the study, the data were collected by referring to the literature database and the questionnaire from June 2013 to June 2015. There were 2 surveys carried out in the study, with methods including questionnaire survey and specific interview. The investigation methods include the paper version of the questionnaire by mail, the electronic version of the questionnaire by e-mail, and the online survey...
August 20, 2016: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/27620188/electron-beam-technology-for-environmental-pollution-control
#18
REVIEW
Andrzej G Chmielewski, Bumsoo Han
Worldwide, there are over 1700 electron beam (EB) units in commercial use, providing an estimated added value to numerous products, amounting to 100 billion USD or more. High-current electron accelerators are used in diverse industries to enhance the physical and chemical properties of materials and to reduce undesirable contaminants such as pathogens, toxic byproducts, or emissions. Over the past few decades, EB technologies have been developed aimed at ensuring the safety of gaseous and liquid effluents discharged to the environment...
October 2016: Topics in Current Chemistry (Journal)
https://www.readbyqxmd.com/read/27614837/survey-of-bovine-colostrum-quality-and-hygiene-on-northern-victorian-dairy-farms
#19
A J Phipps, D S Beggs, A J Murray, P D Mansell, M A Stevenson, M F Pyman
One of the major challenges for dairy producers is to produce, harvest, and store high-quality colostrum and feed it to their replacement heifer calves. Limited published data are available in Australia regarding the relationship between colostrum management, hygiene, and quality. The objectives of this study were to investigate (1) the colostrum storage and handling practices carried out on farm; (2) the immunoglobulin concentration and bacterial composition of colostrum being fed to replacement dairy heifer calves; (3) the percentage of colostrum being fed to replacement dairy heifer calves that meet industry recommendations; and (4) risk factors for bacterial contamination of colostrum...
September 7, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27589019/development-of-synthetic-media-mimicking-food-soils-to-study-the-behaviour-of-listeria-monocytogenes-on-stainless-steel-surfaces
#20
Anaïs Overney, Danielle Chassaing, Brigitte Carpentier, Laurent Guillier, Olivier Firmesse
Listeria monocytogenes is one of the main targets of hygiene procedures in the ready-to-eat food industry due to its ability to persist for months or even years in processing plants, where it can contaminate food during processing. The factors associated with persistence are often those that foster growth, which itself depends on food contamination of surfaces. It is therefore essential to experiment by using food soils or media modelling these soils to understand the behaviour of L. monocytogenes on surfaces of food processing plants...
December 5, 2016: International Journal of Food Microbiology
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