Body Anatomical UV Protection Predicted by Shade Structures: A Modeling Study

Religi, Arianna; Backes, Claudine; Moccozet, Laurent; Vuilleumier, Laurent; Vernez, David; Bulliard, Jean‐Luc

doi:10.1111/php.12949

Cited by 9 publications

(13 citation statements)

References 33 publications

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“…2,92 The results imply that upwelling radiation is an important source of exposure to UV radiation affecting human health where exposure occurs at higher altitudes. 28 A new modelling tool (SimUVEx v2), 215 allows the evaluation of the contribution of the direct, diffuse, and reflected components of UV radiation for different sizes of shade structure.…”

Section: Personal Exposurementioning

confidence: 99%

Ozone—climate interactions and effects on solar ultraviolet radiation

Bais

Bernhard

McKenzie

et al. 2019

Photochem Photobiol Sci

149

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Section: Personal Exposurementioning

confidence: 99%

Ozone—climate interactions and effects on solar ultraviolet radiation

Bais

Bernhard

McKenzie

et al. 2019

Photochem Photobiol Sci

149

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“…Considerable progresses have been made in the understanding of artificial sun protections such as hats [20,37,53], sunglasses [36] or shade structures [35,[53][54][55][56], but little is still known about the photo-protective function of human hair. The effects of UV radiation on hair have only lately attracted the attention of the medical community.…”

Section: Discussionmentioning

confidence: 99%

“…An overall description of the tool is represented in Figure 1. The principles, the performances and its validation have been described previously [19,20,[34][35][36][37]. Input.…”

Section: Methodsmentioning

confidence: 99%

“…Then, a bounding box optimization has been applied to determine if a vertex was in the shade, and a "visibility map" has been conceived to detect the surfaces of each hemisphere visible from the vertex, for the diffuse and reflected radiation [46]. The implementation of visibility maps allows a whole variety of 3D sun protection means such as hats, sunglasses or shade structures [20,[35][36][37], for whom the model can calculate their shade effects on the mannequin, similarly to the shadow of other body parts.…”

Section: Methodsmentioning

confidence: 99%

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3D Modelling for Solar Erythemal UV Protection Provided by Human Hair

Religi¹,

Moccozet²

2019

Applied Sciences

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The head is one of the most sun-exposed anatomical zones and its ultraviolet (UV) exposure is often underestimated. The goal of this research is to quantify the solar erythemal UV protection provided by human hair for different orientations and Solar Zenith Angles (SZA). For this purpose, a three-dimensional (3D) numeric simulation tool called SimUVEx was used to forecast the distribution of UV exposure based on geometric information and solar irradiance. The relative UV dose reduction was expressed in terms of predictive protection factor (PPF). Results showed that the effectiveness of the protection depends strongly on the orientation of the head and on the tilt of the hairs. As the SZA increases, the PPF also increases. PPFs provided by hair with a certain degree of order (parallel alignment) were generally higher by a range of about 10%–30% than the ones provided by random arrangements. A significant exposure to the scalp through the hair, even for an average hair density, was found. It confirms that hair is an important natural sunscreen in reducing transmission of UV radiation and must be considered in the prevention messages of skin cancer on the scalp, particularly in people with alopecia.

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“…Shade will be essential in hot weather. The shade should be effective at preventing exposure to both direct and diffuse solar UVR [57].…”

Section: Adaptation Strategiesmentioning

confidence: 99%

The Incidence of Skin Cancer in Relation to Climate Change in South Africa

et al. 2019

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Climate change is associated with shifts in global weather patterns, especially an increase in ambient temperature, and is deemed a formidable threat to human health. Skin cancer, a non-communicable disease, has been underexplored in relation to a changing climate. Exposure to solar ultraviolet radiation (UVR) is the major environmental risk factor for skin cancer. South Africa is situated in the mid-latitudes and experiences relatively high levels of sun exposure with summertime UV Index values greater than 10. The incidence of skin cancer in the population group with fair skin is considered high, with cost implications relating to diagnosis and treatment. Here, the relationship between skin cancer and several environmental factors likely to be affected by climate change in South Africa are discussed including airborne pollutants, solar UVR, ambient temperature and rainfall. Recommended strategies for personal sun protection, such as shade, clothing, sunglasses and sunscreen, may change as human behaviour adapts to a warming climate. Further research and data are required to assess any future impact of climate change on the incidence of skin cancer in South Africa.

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Body Anatomical UV Protection Predicted by Shade Structures: A Modeling Study

Cited by 9 publications

References 33 publications

Ozone—climate interactions and effects on solar ultraviolet radiation

Ozone—climate interactions and effects on solar ultraviolet radiation

3D Modelling for Solar Erythemal UV Protection Provided by Human Hair

The Incidence of Skin Cancer in Relation to Climate Change in South Africa

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