The impact of light source spectral power distribution on sky glow

Luginbuhl, C. B.; Boley, Paul A.; Davis, Donald R.

doi:10.1016/j.jqsrt.2013.12.004

Cited by 84 publications

(54 citation statements)

References 16 publications

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“…This derives from a diversity of sources, including street lighting, advertising lighting, architectural lighting, security lighting, domestic lighting and vehicle lighting. ALAN disrupts natural patterns of light both via direct effects of illumination from these sources as well as via skyglow (the scattering by atmospheric molecules or aerosols in the atmosphere of ALAN that is emitted or reflected upwards; [8][9][10]). …”

Section: The Challengementioning

confidence: 99%

The biological impacts of artificial light at night: the research challenge

Gaston

Visser

Hölker

2015

Phil. Trans. R. Soc. B

396

278

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Section: The Challengementioning

confidence: 99%

The biological impacts of artificial light at night: the research challenge

Gaston

Visser

Hölker

2015

Phil. Trans. R. Soc. B

396

278

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“…For example, in the UK early electric street lighting relied on incandescent bulbs that emit primarily in yellow wavelengths, in the 1960s and 1970s low-pressure sodium lighting was widely adopted that emits a single narrow peak in the visible spectrum at 589.3 nm, and more recent technologies often emit over a broad range of wavelengths (high-pressure sodium lighting emits a yellow light allowing some colour discrimination; high intensity discharge lamps emit a whiter light, with significant peaks in blue and ultra-violet wavelengths; and LED-based white street lighting typically emits at all wavelengths between around 400 and 700 nm, with peaks in the blue and green; Elvidge et al 2010). Such changes influence not only the spectra of direct lighting but also that of sky glow (Kyba et al 2012;Luginbuhl et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Benefits and costs of artificial nighttime lighting of the environment

Gaston

Bennie

2015

Environ. Rev.

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Artificial lighting has transformed the outdoor nighttime environment over large areas, modifying natural cycles of light in terms of timing, wavelength, and distribution. This has had widespread benefits and costs to humankind, impacting on health and wellbeing, vehicle accidents, crime, energy consumption and carbon emissions, aesthetics, and wildlife and ecosystems. Here, we review these effects, particularly in the context of ongoing developments in the extent of artificial lighting and in the prevalent technologies being employed. The key issue that emerges is how best to maximize the benefits of artificial nighttime lighting whilst limiting the costs. To do so, three main strategies are required. First, important knowledge gaps need to be filled. Second, there is an urgent need to connect the research being conducted in different disciplines, which to date has been very disjointed. Third, it is imperative that much firmer and well-developed links are made between research, policy, and practice.Key words: accidents, aesthetics, crime, ecosystems, health, light pollution, lighting, night, sky glow, wellbeing.Résumé : L'éclairage artificiel a transformé l'environnement nocturne extérieur sur de grandes superficies, modifiant les cycles naturels de la lumière en terme de temps, de longueurs d'ondes et de distribution. Ceci s'est traduit par des coûts et bénéfices largement étendus pour l'humanité, affectant la santé et le bien-être, les accidents d'automobile, le crime, la consommation d'énergie et les émissions de carbones, l'esthétique ainsi que la faune et les écosystèmes. Les auteurs passent en revue ces effets, particulièrement dans le contexte de développement continu dans l'extension de l'éclairage artificiel et dans les technologies dominantes mises en oeuvre. La problématique clé qui en émerge consiste à savoir comment maximiser le mieux possible les bénéfices de l'éclairage nocturne artificiel tout en limitant les coûts. Pour atteindre cet objectif, trois stratégies principales s'imposent. Il faut d'abord combler des déficiences de connaissances. Deuxièmement, il existe un urgent besoin d'intégrer les travaux de recherche conduits dans diverses disciplines, lesquels ont été conduits de façon disparate jusqu'ici. Et troisièmement, il est impératif que des liens beaucoup plus solides et mieux développés se développent entre la recherche, les politiques et la pratique. [Traduit par la Redaction]

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“…It is suspected to disrupt the ecosystem and lead to adverse health effects. The study by Luginbuhl et al investigated the sky brightness arising from street lights, dependent on the color temperature at the same luminous flux (Luginbuhl et al, 2014). It was found, that the sky brightness arising from light sources with high blue proportion more strongly decreases with the distance, but the visual sky glow remains significantly brighter than from warm white light sources.…”

Section: Health Effects Effects On Animals Light Pollutionmentioning

confidence: 99%

Critical review on life cycle inventories and environmental assessments of LED-lamps

Franz

Wenzl

2017

Critical Reviews in Environmental Science and Technology

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Resource scarcity, hazardous waste, and climate change are the driving forces for developing energy efficient and low-toxic lighting sources. Currently, solid state lighting based on lightemitting diodes is expected to become the most dominant lighting technology of the future, mostly driven by its advantage with respect to energy efficiency. Parallel to the ongoing development of light-emitting diode-based lighting sources, a number of single case and comparative life cycle assessment studies of LED-lamps and components in varying study settings were carried out. However, these studies mostly rely to specific lamp designs, which limits general conclusions. This work includes a summary of the global market of lighting and LEDlamp technologies, followed by a comprehensive review and comparison of published life cycle assessment studies. In addition, we take also some aspects, which are relevant for the well-being of an end-user and which are usually not treated in life cycle assessment studies, like glare and health issues, into consideration. A critical interpretation of the assumptions and outcomes of these studies is given and questions that remain unsettled and therefore should be addressed in future studies are discussed.

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The impact of light source spectral power distribution on sky glow

Cited by 84 publications

References 16 publications

The biological impacts of artificial light at night: the research challenge

The biological impacts of artificial light at night: the research challenge

Benefits and costs of artificial nighttime lighting of the environment

Critical review on life cycle inventories and environmental assessments of LED-lamps

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