Older's over-exposure Articles from Mar. 1st 1971 to Jan. ...

A report of staff overdose during fluoroscopic procedures

The aim of this study was to determine mean absorbed doses to the stuff working in operation room after renovation and establishing a new X-ray equipment and to find an approach to reduce the absorbed dose to the doctors and nurses in operation room. The source of over exposure was a combination of new equipment and lack of awareness of staff engrossed in their duties.Keywords: staff overdose, ...

Mar. 25, 2008

By Inderscience Publishers

H&S Operational Efficiency: Plant turnaround

Hazardous chemicals that pose a risk to humans are normally safely transported within the process but obviously during plant turnaround this is no longer the case. As lines and reaction vessels are opened they pose a significant risk of over-exposure, without appropriate control measures. Concentrations can be several hundred (or even thousand) times higher than the occupational exposure ...

Mar. 15, 2018

By Ion Science Ltd.

Validation of models for prediction of chloride ingress in concrete exposed in de–icing salt road environment

This paper presents the results from validation of models for prediction of chloride ingress in concrete exposed in de–icing salt road environment. Three models including the simple error–function complement (ERFC) model, the DuraCrete model and the ClinConc model, were evaluated using the measurement data collected from both the field exposure site after over ten years exposure and ...

Dec. 3, 2012

By Inderscience Publishers

Exposure to the lampricide 3‐trifluoromethyl‐4‐nitrophenol results in increased expression of carbohydrate transporters in S. cerevisiae

The lampricide 3‐trifluoromethyl‐4‐nitrophenol (TFM) is used to control sea lamprey (Petromyzon marinus) populations in freshwater lakes. While TFM can have sublethal and lethal effects, little is known about gene expression changes with TFM exposure. Microarray analysis was used to determine differential gene expression over 4 hours of exposure in S. cerevisiae. Among the most significantly ...

Nov. 25, 2015

By John Wiley & Sons, Ltd.

HPLC separation and detection of bisphenol a (BPA) in plastics

The BPA or bisphenol A (Figure 1) has become well know over the past year as concerns for its effect on human health and well being have been raised. The concerns over BPA began with baby bottles and spread to include other types of bottles. BPA is used in the production of two very common polymers PVC and Polycarbonate. PVC, Polyvinyl chloride, is used in many different products including ...

Oct. 28, 2009

By PerkinElmer, Inc.

Choosing Children’s Environmental Risk

A model of endogenous risk provides a foundation to study a parent’s child care decisions when the child could be exposed to an environmental hazard (e.g., toxic substance, foodborne pathogen). The parent invests in childcare quality and quantity to reduce the likelihood of a hazard exposure occurring and to reduce its severity if the exposure is realized. We supply conditions to sign ...

Mar. 1, 2006

By Springer-Verlag GmbH

To Breastfeed or Not To Breastfeed: A Review of the Impact of Lactational Exposure to Polychlorinated Biphenyls (PCBs) on Infants

Researchers have long debated the adverse effects of exposure to polychlorinated biphenyls (PCBs) on children versus the benefits of breastfeeding. In this article, the authors provide an overview of the known health effects of PCBs in children and examine the level of evidence regarding the risk of postnatal exposure via breastfeeding. The major source of PCBs is environmental, with over 90% of ...

Oct. 1, 2010

By National Environmental Health Association (NEHA)

Testosterone levels and fecundity in the hermaphroditic aquatic snail Lymnaea stagnalis exposed to testosterone and endocrine disruptors

Endocrine disruptors are known to alter endogenous free and esterified levels of androgenic and estrogenic steroid hormones in aquatic mollusks. The origin of steroids in these animals, however, remains controversial. In the present study, free and esterified testosterone concentrations were measured in the hermaphroditic aquatic gastropod Lymnaea stagnalis exposed to molecules known for their ...

Jun. 3, 2013

By John Wiley & Sons, Ltd.

The Influence of Alkalising Amines on the Film Formation of Oleyldiamine Paper

Summary The film formation of film forming amines (FFAs), commonly used as corrosion inhibitors in water/steam cycles, has been subject of various studies. However, less is known of the impact of alkalising amines (AA) on the film formation. AAs have a solubilising effect on the FFA and as a consequence might indirectly influence the properties of the film. Therefore, the film formation of ...

Sep. 14, 2015

By Kurita

Toxicity of endosulfan on embryo‐larval development of the South American toad, Rhinella arenarum

Endosulfan (ES) is a widely used pesticide despite its extreme toxicity to a variety of taxa and its worldwide ban. In this context, the aim of this study was to evaluate the acute and chronic toxicity of ES on the embryo‐larval development of the common South American toad, Rhinella arenarum. The results showed that lethal and sublethal effects increased with concentration and exposure time. ...

Dec. 25, 2013

By John Wiley & Sons, Ltd.

Analysis of Cleaning Validation Compounds using the TOC Fusion Analyzer

Abstract By taking an active approach to prevent cross-contamination in pharmaceutical and cosmetic production, international agencies such as the USFDA, ICH, EC, Health Canada, and the WHO have established regulations and guidelines for effective cleaning and sanitization.1-6 With the potential side effects due to exposure, limiting carry-over of residual compounds into subsequent batches is ...

Dec. 7, 2010

By Teledyne Tekmar

Analysis of Cleaning Validation Compounds using the TOC Fusion Analyzer

Abstract By taking an active approach to prevent cross-contamination in pharmaceutical and cosmetic production, international agencies such as the USFDA, ICH, EC, Health Canada, and the WHO have established regulations and guidelines for effective cleaning and sanitization.1-6 With the potential side effects due to exposure, limiting carry-over of residual compounds into subsequent batches is ...

Oct. 12, 2010

By Teledyne Tekmar

IAQ Consultants Encouraged to Review their E&O Insurance

Errors & omissions (E&O) insurance, also known as professional liability insurance (PLI) and professional indemnity insurance (PII) is a crucial form of coverage for professionals dealing with indoor air quality (IAQ) consulting services. E&O insurance helps to protect IAQ consultants who provide advice and services from the full cost of defending against negligence claims and ...

Aug. 21, 2012

By Legends Environmental Insurance Services, LLC

The influence of natural organic matter and aging on suspension stability in guideline toxicity testing of Ag, ZnO, and TiO2 nanoparticles with Daphnia magna

This study investigated changes in suspension stability and ecotoxicity of engineered nanoparticles (ENPs) by addition of Suwannee River natural organic matter (SR‐NOM) and aging of stock and test suspensions prior to testing. Acute toxicity tests of Ag, ZnO, and TiO2 ENPs with Daphnia magna were carried out following OECD test guidelines. D. magna was found to be very sensitive to Ag ENPs ...

Dec. 26, 2014

By John Wiley & Sons, Ltd.

Tips To Buy Various Machines for Mobile Car Wash

Starting a mobile car wash and detailing business requires versatile and effective equipment. For efficient cleaning, many experienced professionals recommend using multiple cleaning machines. Ideally, one must use a soft surface carpet and upholstery cleaner for cleaning the interior of vehicles and a hard surface pressure washer for cleaning the exteriors of vehicles. An Overview of Mobile ...

Feb. 13, 2012

By Daimer Industries Inc.

Enter a New World with Cirrus Research

Cirrus is evolving.Â We want to make safety at work easily achievable for everyone. Thatâ€™s why weâ€™re entering into the world of vibration with the launch of the Revoâ„¢ Vibration Meter. Join us on our journey. Introducing theÂ Revoâ„¢ Vibration Meter The Revo has been designed specifically to allow you to ...

May 5, 2015

By Cirrus Research plc

Health and Safety in Heavy Industries

Many vapours and gases found in heavy industries pose an explosion risk. For any gas to combust it must reach its lower explosive limit (LELs). Lower explosive limits have been well established for 100s of chemicals and generally vapours from VOCs have relatively low explosion limits. For example, methane and hydrogen have LELs of 50,000 ppm and 40,000 ppm respectively whereas benzene has ...

Mar. 28, 2019

By Ion Science Ltd.

Knowing the Use of Floor Steam Cleaner for Hard Wood Cleaning

A floor steam cleaner is what its name indicates. It is a cleaning machine that cleans the floor with its steam output. The steam melts the dirt and impure substances on the floor. The molten dirt is then removed either manually or with the aid of a vacuum. A floor steam cleaner cleans with its steam output. Modern machines have an output temperature of up to 386°F. Such high temperature is ...

Sep. 4, 2012

By Daimer Industries Inc.

Reduced cadmium accumulation and toxicity in Daphnia magna under carbon nanotube exposure

With increasing application and commercial production, carbon nanotubes (CNTs) will inevitably be released into aquatic environments and affect the transport and toxicity of toxic metals in ecosystems. The present study examined how CNTs affected the biokinetics and toxicity of a toxic metal, cadmium (Cd), in the freshwater zooplankton Daphnia magna. The authors quantified the dissolved uptake ...

Oct. 15, 2015

By John Wiley & Sons, Ltd.

The National Exposure Registry: History and Lessons Learned

The National Exposure Registry (NER) was created as a comprehensive group of data repositories that sought, over time, to relate specific environmental exposures to dioxin, trichloroethylene (TCE), benzene, and trichloroethane (TCA) to registrants’ health conditions. Some parts of the NER were well conceived, whereas others were not. The most important design deficiency of the NER was its ...

Mar. 1, 2010

By National Environmental Health Association (NEHA)

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