over-exposure Articles - page 2 | Environmental XPRT

Investigation of the toxicokinetics of petroleum hydrocarbon distillates with the earthworm Eisenia andrei

The Canada‐Wide Standards for Petroleum Hydrocarbons in soils regulate petroleum hydrocarbons based on four distillate ranges: F1 (C6–C10), F2 (>C10–C16), F3 (>C16–C34), and F4 (>C34). Previous toxicity tests with earthworms and F2, as well as two subfractions of F3, F3a (>C16–C22) and F3a (>C22–C34), indicate that test durations might not be sufficiently long to reach threshold effect ...

Jan. 30, 2013

By John Wiley & Sons, Ltd.

MCS -- is it still an issue?

At AllerAir, we often get questions about environmental illnesses and chemical sensitivities. Those not be affected by everyday chemicals may dismiss the notion of a chemical sensitivity disorder altogether. Others need more evidence or research. In the medical community, there have been many published studies, theories and treatment suggestions, but to date, there is no officially recognized ...

Nov. 20, 2017

By Allerair Industries

How To Make Best Use Of Steam Cleaners For Blinds Cleaning?

A number of people use steam cleaners for blinds cleaning on a regular basis. Blinds, irrespective of the type of material they are made of, tend to attract dirt. The accumulated dust deposits are mostly invisible and erupt only when the blinds are shaken forcefully. Need for blinds cleaning Regular exposure to dust can cause many lung-related problems. Asthma and allergic patients should never ...

Nov. 5, 2012

By Daimer Industries Inc.

Long Duration Foam Wins Job, Saves Money - TCE and Vinyl Chloride Emission Control

Products & Equipment Used: AC-645 AC-904 PFU400/25 Application Summary: Kelchner Environmental, Inc., a remediation and civil construction contractor in Dayton, OH, was awarded a remediation contract by a major private sector client at an active manufacturing plant located in Sanborn, NY. The original engineering design required construction of a temporary structure to cover the entire ...

Feb. 13, 2009

By Rusmar Inc.

Toxic effects of combined stressors on Daphnia pulex: Interactions between diazinon, 4‐nonylphenol, and wastewater effluent

Contaminant exposure in aqueous systems typically involve complex chemical mixtures. Given the large number of compounds present in the environment, it is critical to rapidly identify hazardous chemical interactions. This study utilizes a prototype for a novel high throughput assay to quantify behavioral changes over time to identify chemical interactions that affect toxicity. The independent ...

Feb. 5, 2015

By John Wiley & Sons, Ltd.

Assessing the potential for restoration of surface permeability for permeable pavements through maintenance

Permeable pavements (PPs) have been in use as stormwater management systems in Canada and the United States for over 20 years. After years of exposure to sediment and debris build-up, surface clogging reduces the infiltration of stormwater and inhibits the hydraulic and environmental functions of the pavement. Removal of surface material has been shown to restore infiltration but the majority ...

Nov. 13, 2013

By IWA Publishing

Instilling resilience in our first responders

In a world-first study, the Black Dog Institute has revealed promising strategies for embedding psychological resilience in emergency service workers and first responders. There are over 80,000 fulltime emergency workers in Australia. By definition their roles entail highly challenging working conditions and regular exposure to traumatic incidents. Over half of emergency service responders have ...

Aug. 1, 2019

By Criterion Conferences

Distribution and abundance of labrids in northeastern New Zealand: the relationship between depth, exposure and pectoral fin aspect ratio

Physical factors influencing the distribution and abundance of seven common labrid fishes were examined over four rocky reef locations in northeastern New Zealand. Depth and exposure for each species (both within and among sexes) were related to pectoral fin aspect ratio. Each of the four locations (two mainland and two island) displayed distinct labrid assemblages, which were consistent over ...

Mar. 1, 2005

By Springer-Verlag GmbH

1,2-dichloroethane removal by Bruguiera gymnorrhiza (L.) Lamk and Pseudomonas putida BCC 23535

The purpose of this work was to investigate the ability of Bruguiera gymnorrhiza (L.) Lamk and Pseudomonas putida BCC 23535 to remove 1,2-dichloroethane (1,2-DCA) in contaminated water under hydroponic conditions. B. gymnorrhiza (L.) Lamk is a representative mangrove plant that can tolerate high levels of 1,2-DCA with a lethal dose 50 (LD50) of 34.67 mM. A concentration of 10 mM 1,2-DCA was ...

Apr. 15, 2016

By IWA Publishing

Biological monitoring and surveillance results of Gulf War I veterans exposed to depleted uranium

Objective: To relate medical surveillance outcomes to uranium biomonitoring results in a group of depleted uranium (DU)-exposed, Gulf War I veterans. Methods: Thirty-two veterans of Gulf War I who were victims of ‘friendly fire’ involving DU weapons, in whom exposure assessment can accurately be measured, had urine uranium concentrations determined using ICP-MS technology. Clinical laboratory ...

Jan. 1, 2006

By Springer-Verlag GmbH

Hand Arm Vibration Risk Assessment

With recent high profile HSE fines in mind (including 2018 fines of £500k to Balfour Beatty and £400k to the Nordam Europe Limited), it seems many companies still don’t understand what a Hand Arm Vibration Risk Assessment is and what the risks are to their employees from using hand held power tools. If your employees use high vibrating power pools such as riveters, drills, ...

Sep. 23, 2018

By Pulsar Instruments Plc

OSHA Targets Primary Metal Industries

Back in May 2011, OSHA began implementing a National Emphasis Program (NEP) to reduce or eliminate harmful worker exposure to both chemical and physical (heat and noise) health hazards encountered in the Primary Metal Industries (SIC Major Group 33). The emphasis on worker safety and health continues as these industries expand or start a new. Thus 2019 continues as a year where worker health and ...

Mar. 18, 2019

By Atlantic Environmental, Inc.

Inactivation of human adenovirus by sequential disinfection with an alternative UV technology and free chlorine

There has been growing concern over human exposure to adenoviruses through drinking water due to the extreme resistance of human adenoviruses to the traditional UV technology (low-pressure (LP) UV). As an effort to develop an effective treatment strategy against human adenoviruses in drinking water, we determined the effectiveness of sequential disinfection with an alternative UV technology ...

Mar. 1, 2011

By IWA Publishing

Keep your Guard Up around Machines

What’s at Stake? Exposure to unguarded or improperly guarded machines causes over 1000 deaths and 20,000 serious cuts, crushing injuries, scalpings and amputations every year. These injuries are gruesome, painful and often disabling and happen when working with any machine or tool that can punch, spin, rotate, shear, bend, cut, roll, grind or slice. What’s the Danger? Machines ...

Jan. 7, 2017

By SafetySmart

Chemical Mass Transport Measurements to Determine Flexible Membrane Liner Lifetime

The prediction of the service life of flexible membrane liners (FMLs) when exposed to chemicals has usually been by way of testing for physical or mechanical property changes after periodic exposure times. This paper presents an alternate approach by evaluating the chemical properties via five different mass transport related measurements of the exposed FML. These tests are water vapor ...

Jun. 1, 1988

By ASTM International

Removal of cadmium from industrial effluents by electrocoagulation process using iron electrodes

Heavy metal species are some of the most common pollutants that are found in industrial wastewaters. Because of their toxicity, these species can have a serious impact if released into the environment as a result of bioaccumulation, and they may be extremely toxic even in trace quantities. One such a heavy metal, cadmium, along with its compounds, is widely used in pigments, as heat stabilizers ...

Sep. 25, 2006

By University of Tehran

The nanoparticles of BaSO4:Eu as detectors for high doses of different ionising radiations

Nanoparticles of a BaSO4:Eu phosphor with a particle size of around 40 nm have been irradiated by 48 MeV 7Li3+, 75 MeV C6+ and 90 MeV O7+ ion beams at the fluence range of 1 ∼ l09–1 ∼ 1013 ions/cm2. The thermoluminescence (TL) glow curves of the irradiated samples were recorded and studied. The microcrystalline form of this sample is included in the study with the aim of reporting a comparative ...

Feb. 8, 2010

By Inderscience Publishers

The Zero Index Organization: The Art of What`s Possible

In the simplest terms, safety is suffering a crisis of execution. Many leaders want to create an organisation where “safety is who we are,” where “zero” is a reality, yet, few can describe what that means in real terms. Employees know that safety is important, yet find obstacles to safe work in “non safety” systems and processes. We know the elements that ...

May 23, 2014

By Behavioral Science Technology, Inc. (BST)

Development of realistic environmental release factors based on measured data: approach and lessons from the EU metal industry

The assessment of environmental exposure and risks associated with the production or use of a substance on an industrial site includes the estimation of the releases to the environment. In absence of measured release data on the specific substance, a risk assessor would rely on default release factors to the environmental compartments as developed in international, national or regional ...

Jun. 18, 2014

By John Wiley & Sons, Ltd.

Hexavalent Chromium (Hex Chrome) Control During Welding-Protecting Welders

Welders have the potential to be overexposed to Hexavalent Chromium, also called Hex Chrome, or Chrome 6 during welding especially if its production welding, or full shift welding on stainless steel. Overexposure to Hex Chrome can also occur on many forms of carbon steel since many steel alloys contain chromium. Also, welding rods may also contain chromium that can form into Hexavalent Chromium ...

Nov. 9, 2018

By Atlantic Environmental, Inc.

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