Radiation Safety Articles

556 Results found
  • Category: Health & Safety ×

  • Subcategory: Radiation Safety ×

Comparison of ultraviolet light emitting diodes with traditional UV for greywater disinfection

by IWA Publishing  (Mar. 13, 2015)

The current technological status of ultraviolet light emitting diodes (UV-LEDs) has reached a point where small-scale ultraviolet (UV) water disinfection applications, that is, for greywater reuse appear increasingly promising. This study compares the germicidal and economical aspects of UV-LEDs with traditional UV. Pure cultures and ...

Experimental determination of dose uniformity in the CDTN gamma irradiator

by Inderscience Publishers  (Mar. 6, 2015)

This paper describes an experimental study of dose uniformity within a container used for products irradiation, in the gamma irradiation facility at Nuclear Technology Development Center (CDTN). The CDTN is a research institute of the National Nuclear Energy Commission (CNEN), Brazil. Polymethylmethacrylate (PMMA) dosimeters were used in order to ...

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 ...

Last tango for nuclear?

by Ensia  (Jan. 30, 2015)

The U.S. nuclear power industry’s three-step: Revival, long goodbye or state-aided life support. As pressure to reduce climate-changing emissions grows, nuclear power is drawing growing attention — for better or worse. In this piece, the first of a series of three being published at Environmental Health News with funding ...

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 ...

Evaluation of detection abilities of monitoring networks using multiple assessment criteria

by Inderscience Publishers  (Dec. 1, 2014)

The problem of evaluation of radiation monitoring network quality is considered. The comparison of possible network configurations is performed on simulated experiments where a twin model is used to simulate observed data. An assimilation procedure based on the particle filter approach is run for each configuration of the network. Specifically, ...

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 ...

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