Radiation Safety Articles

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Optimisation of radiolysis of Reactive Red 120 dye in aqueous solution using ionising 60Co gamma radiation by response surface methodology

by IWA Publishing  (Apr. 11, 2016)

In recent years, employing radiation technology is gaining great interest in degradation of industrial effluents. In this work the possibility of using gamma irradiation to degrade Reactive Red 120 (C.I.292775) was explored. The effects of pH, dose of gamma irradiation and concentration of dye were examined and their interaction were also ...

Is nuclear power our energy future — or a dinosaur in a death spiral?

by Ensia  (Feb. 29, 2016)

Identical data yield drastically different conclusions about the role nuclear will play in meeting climate goals. Nuclear power is dead. Long live nuclear power. Nuclear power is the only way forward. Nuclear power is a red herring. Nuclear power is too dangerous. Nuclear power is the safest power source around. Nuclear is nothing. Nuclear is ...

Photo‐enhanced toxicity of fluoranthene to Gulf of Mexico marine organisms at different larval ages and ultraviolet light intensities

by John Wiley & Sons, Ltd.  (Nov. 22, 2015)

Significant increases in toxicity have been observed as a result of PAH absorption of ultraviolet (UV) radiation in aquatic organisms. Early life stage aquatic organisms are predicted to be more susceptible to PAH photo‐enhanced toxicity as a result of their translucence and tendency to inhabit shallow littoral or surface waters. The objective ...

Disinfection characteristics of the combined ultraviolet radiation and ozone process using Escherichia coli as a probe

by IWA Publishing  (Aug. 11, 2015)

In the present study, the characteristics of the combined ultraviolet (UV) and ozone disinfection process were investigated from kinetic and mechanistic viewpoints employing Escherichia coli (E. coli) as an indicator microorganism. Compared to individual unit processes, the combined UV/O3 tests produced excess hydroxyl radicals (HO•) and ...

How does climate stack up against other worst-case scenarios?

by Ensia  (Apr. 1, 2015)

Climate isn’t the only catastrophe threatening the planet, but it may be the one most in need of attention and resources. The following is excerpted from Climate Shock (2015) by Gernot Wagner and Martin L. Weitzman. Published here with permission from Princeton ...

Responses of wheat (Triticum aestivum) and turnip (Brassica rapa) to the combined exposure of carbaryl and ultraviolet radiation

by John Wiley & Sons, Ltd.  (Mar. 5, 2015)

The increase of ultraviolet radiation reaching the Earth's surface due to the increase of ozone layer depletion have affected crop production systems, and in combination with pesticides used in agricultural activities can lead to greater risks to the environment. The impact of ultraviolet radiation and carbaryl singly and in combination on ...

Disinfection of an advanced primary effluent using peracetic acid or ultraviolet radiation for its reuse in public services

by IWA Publishing  (Feb. 27, 2015)

The disinfection of a continuous flow of an effluent from an advanced primary treatment (coagulation-flocculation-sedimentation) with or without posterior filtration, using either peracetic acid (PAA) or ultraviolet (UV) radiation was studied. We aimed to obtain bacteriological quality to comply with the microbiological standard established in ...

Impact of sunlight/dark storage on natural spring water bottled in polyethylene terephthalate

by IWA Publishing  (Feb. 23, 2015)

The effect of two environmental variables, ultraviolet radiation and external air temperature, on polyethylene terephthalate (PET) bottled water was investigated over 100 days. The high pressure liquid chromatography results showed the migration of carbonyl compounds (acetaldehyde, formaldehyde and acetone) from PET bottles into water over 3 ...

Nuclear waste storage and environmental intergenerational externalities

by Inderscience Publishers  (Jan. 7, 2015)

This article analyses the long–term consequences of nuclear waste storage within a general equilibrium framework. The objective is to determine the conditions for which the storage of waste, and thus the transfer of externalities towards the future, can be optimal. These conditions could explain the implementation of intergenerational ...

Sensitivity analysis of the modelled deposition of 137 Cs on the Japanese land following the Fukushima accident

by Inderscience Publishers  (Dec. 1, 2014)

Dispersion of radioactive material released to the atmosphere from the Fukushima Daiichi Nuclear Power Plant accident in Japan was modelled to assist the French Government in effectively providing public health advice to its citizens in Japan. It required estimation of radiation doses based on realistic scenarios and atmospheric dispersion ...

Nuclear–powered unmanned aerial vehicles for science, industry and telecommunications

by Inderscience Publishers  (Dec. 1, 2014)

Unmanned Aerial Vehicles (UAVs) suffer from limitations on flight persistence and on electrical power for avionics and payload systems. Both limitations may be effectively lifted by the use of an on–board nuclear engine, which will open up the horizon for further UAV applications in science and industry. Nuclear–powered UAVs were studied in the ...

Radioiodine Collection Filter Efficiency Testing Program

by F&J SPECIALTY PRODUCTS, INC.  (Sep. 23, 2014)

The key elements of the F&J quality assurance program for the manufacture of TEDA impregnated charcoal and silver zeolite cartridges utilized in the collection of airborne radioactive iodine species in power plant atmospheres include the following: 1. Testing is performed on every batch of adsorbent material 2. ...

A view on the effects induced by low irradiation contamination of soil and atmospheric impact on plant populations in nature

by Inderscience Publishers  (Jul. 15, 2014)

At present, a possible radiation effect is estimated as a function of dose irradiation although it is strongly dependent more on the environmental factors. The consequences of low doses of internal irradiation linked to chronic soil contamination and of external irradiation associated with short or prolonged atmospheric impacts for plant ...

Ethological studies in Swiss albino mice with special reference to the histology of the cerebellar tissue after an acute as well as a continuous low–dose tritiated water (HTO) exposure

by Inderscience Publishers  (May 23, 2014)

Health and environmental impact of tritium released from fusion reactor technology may end up as a worldwide problem in the final analysis. Pregnant Swiss albino mice were irradiated with 11.1 kBq ml−1 tritiated drinking water. The young ones born to them were maintained on tritiated water (HTO) at the same dose level and in adulthood, when tested ...

Radiological safety and environmental monitoring aspects of mining and processing of uranium ore at Jaduguda, India

by Inderscience Publishers  (May 23, 2014)

Low–grade uranium ore is mined and processed in India since the early 1970s. To adhere to the regulatory compliance monitoring of external gamma level, radon and long–lived alpha activity of ore dust is carried out in uranium mines. Apart from this, surface contamination is also monitored in radiologically important areas of ore processing plant. ...

Natural radionuclides in Niger delta sedimentary organic rock samples

by Inderscience Publishers  (May 23, 2014)

Thirty sedimentary organic rock samples were collected at different depths from three oil wells in the Niger Delta. The natural radionuclides in the samples were measured in order to determine their geochemical significance and radiological effect. The radionuclides were measured using gamma spectrometric technique. Natural occurring radionuclides ...

Advanced oxidation processes with coke plant wastewater treatment

by IWA Publishing  (May 7, 2014)

The aim of this study was to determine the most efficient method of coke wastewater treatment. This research examined two processes – advanced oxidation with Fenton and photo-Fenton reaction. It was observed that the use of ultraviolet radiation with Fenton process had a better result in removal of impurities. ...

Potential of taxonomy to preserve and disseminate Fukushima accident information implemented by JAEA library

by Inderscience Publishers  (Jan. 30, 2014)

Regarding Fukushima accident, it would be true that the relevant information has not been provided well enough for the affected people in and over Japan, for instance, as often being mixed, confused, too difficult to access or disappearing through the internet or websites. In this regard, it is necessary be to terminologically develop ways to ...

Nuclear energy: societal and knowledge management aspects

by Inderscience Publishers  (Jan. 30, 2014)

Multidisciplinary complexity and special characteristics of nuclear energy management lead to varied public perception of associated risks. Arguments on how nuclear power plants might contribute to sustainability or threaten it are discussed. Energy produced from nuclear power reactors may contribute to the economic development of the country ...

The role of the trade unions in fostering safety culture

by Inderscience Publishers  (Jan. 9, 2014)

Trade unions can play a relevant role in managing active policies on safety at work, above all in nuclear activities. Italian experience in safety at work is in the vanguard and has produced noteworthy outcomes. A significant figure is the Safety Workers’ Representative (SWR), directly elected by workers. The SWR has four basic rights: to be ...

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