Artificial Optical Radiation photobiological hazards in arc welding

Gourzoulidis, Georgios; Achtipis, A.; Topalis, Frangiskos V.; Kazasidis, Marios; Pantelis, Dimitrios; Markoulis, Α.G.; Kappas, C.; Bourousis, Constantinos

doi:10.1016/j.ejmp.2016.07.001

Cited by 10 publications

(12 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…I would propose that the UVR dosimetry studies described above (2,3), taken together with studies on UVR emissions of welding arcs which show that the MPE for many welding arcs can be exceeded in a matter of seconds (11)(12)(13), indicate that welders do work in an extreme UVR environment. These studies also suggest that welders are regularly exposed to levels of UVR that exceed the occupational exposure limits at body sites which are thought to be protected (eg, face and eyes) (2,3).…”

mentioning

confidence: 99%

Ocular ultraviolet radiation exposure of welders

Tenkate

2017

Scand J Work Environ Health

View full text Add to dashboard Cite

mentioning

confidence: 99%

Ocular ultraviolet radiation exposure of welders

Tenkate

2017

Scand J Work Environ Health

View full text Add to dashboard Cite

“…Directive statements had to be implemented into the law of each EC country by 2011. Risk assessment is the scientific approach to identify and quantify health hazards due to optical radiation [5] and assessment of such hazard is obligatory for employers, which means that each source of optical radiation in the working environment should be identified, and risk assessment should be performed. However, the determination of exposure level is often not a trivial task, especially in the case of technological sources like a welding arc, which is not stable in time.…”

Section: Introductionmentioning

confidence: 99%

“…A welding arc is one of the strongest technological sources of artificial optical radiation, especially in the ultraviolet and visible range [5][6][7][8][9][10][11][12][13][14][15]. It creates a wide range of risks for the skin and eyes of both welders and workers or people around the welding workstation [13,14,[16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

“…Many studies were carried out to measure optical radiation from the welding arc for the purpose of hazard evaluation, and they proved the strong influence of welding parameters on UV radiation emission [8,10,14,31]. The relative spectrum of arc emission depends mainly on the chemical composition of the welded material, but the absolute intensity of the radiation depends on the wire/electrode diameter, the chemical composition of material from which the electrode is made, current intensity, and arc voltage [5,8,10,13]. For example, the study of Nakashima et al proved that the UV emission is more hazardous when the welding materials include magnesium and when the electrodes contain oxides [14].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Ignition of Welding Arc and UV Actinic Hazard Evaluation

Rybczyński¹,

Wolska

Wisełka

et al. 2019

Energies

View full text Add to dashboard Cite

Welding arcs emit strong ultraviolet (UV) radiation, which could pose serious health risks for skin and eyes. According to Directive 2006/25/EC, UV hazard evaluation has to be performed in the working environment. The measurement of welding arc ignition radiation is a difficult task. This article describes the effort made to determine actinic radiant exposure levels during welding arc ignition in the controlled environment of a welding laboratory. A new method of UV actinic hazard evaluation from welding arc ignition radiation using a CCD spectroradiometer combined with a photometer is presented. The hazard of UV emitted in pulsed metal active gas welding (MAG-P) of construction steel is described. The duration of ignition peak in the study was in the range of 9–15 ms. The actinic radiant exposure during arc ignition over aversion response time was in the range of 0.26–1.12 J/m2. The daily exposure time can easily exceed the permissible exposure time obtained in our study, i.e., 13–34 s, which means that UV radiation form MAG-P arc welding is hazardous for workers in the vicinity of the welding arc. The measurement method presented in the article enables determination of radiant exposure of arc ignition radiation.

show abstract

“…There is an extensive literature on the experimental measurement of the effective irradiances (mainly on UV and blue light) for various welding processes, such as gas metal arc welding (GMAW) [8][9][10][11], gas tungsten arc welding (GTAW) [9,10,12], fluxed-cored arc welding [13] and CO 2 arc welding [9,14]. The radiation hazards can be further evaluated by comparing the measured effective irradiances with corresponding exposure limits proposed by the Directive 2006/25/EC [15] or the American conference of governmental industrial hygienists [16].…”

Section: Introductionmentioning

confidence: 99%

Optical Radiation Associated with Photobiological Hazards for Argon GTAW Arcs

Wang¹,

Cressault²,

Teulet³

et al. 2019

Plasma Chem Plasma Process

View full text Add to dashboard Cite

Gas tungsten arc welding (GTAW), a widely used industrial process, is one of the most intense artificial sources of optical radiation. This paper presents a theoretical investigation of the UV (180-400 nm), UVA (315-400 nm) and blue light (300-700 nm) radiation associated with the photobiological hazards to workers for argon GTAW arcs. The radiative properties of argon plasma were calculated and discussed for the three spectral regions of interest at temperatures from 5000-25,000 K and atmospheric pressure. A two-dimensional model of a GTAW arc was then developed to determine the local emissions in the arc, the total radiation escaping from the arc and corresponding effective irradiances. This model is also used to study the influence of the welding parameters (current intensity and arc length) on the radiative properties and the effective irradiances. The permissible exposure durations for skin and eyes were further evaluated according to the radiation exposure standard of the Directive 2006/25/EC for the three spectral intervals. It is found that the UV radiation is most hazardous among these spectra. Indeed, it is shown that the UV permissible exposure duration is very short, e.g. from 5.89 s to 9.8 min at the distances from 0.5 m to 5 m for a typical GTAW arc (200 A and 5 mm arc length). This study clearly supports the importance of undertaking an effective protection strategy for workers, particularly for skin and eyes, in the welding environment.

show abstract

Artificial Optical Radiation photobiological hazards in arc welding

Cited by 10 publications

References 3 publications

Ocular ultraviolet radiation exposure of welders

Ocular ultraviolet radiation exposure of welders

Ignition of Welding Arc and UV Actinic Hazard Evaluation

Optical Radiation Associated with Photobiological Hazards for Argon GTAW Arcs

Contact Info

Product

Resources

About