CIE Position Statement on Obtrusive Light and Light Pollution, 1st Edition
國際照明委員會（CIE）發布關於溢散光和光污染的立場聲明
CIE PS 003:2025
The purpose of lighting at night is to improve visual amenity and safety. However, in the design and setting-up of lighting installations one should avoid disproportionate unwanted effects.
Key take-away points from this Position Statement are described below:
- There are benefits of light at night, such as:
- reduction in the risk of road accidents at night;
- increase in reassurance that it is safe to walk through or be in a space;
- lighting can make a space more inviting, encouraging the use of and social interactions within an area and thereby reducing social exclusion.
- However, there are also drawbacks to use of light at night, such as:
- adverse health effects including disruption to sleep and circadian rhythms;
- disruption of breeding patterns, migration routes and pollination cycles in plants and animals;
- increased sky glow causing reduced ability to see the night sky and affecting astronomical observations.
- The lighting industry offers solutions that can mitigate obtrusive light, mostly based around:
- good lighting design;
- understanding of the needs of a space through local knowledge and planning;
- adaptability of lighting solutions to different demands at different times.
- Further research is needed to better understand the effects of anthropogenic light at night on species and ecosystems as well as development of better measurement methods for obtrusive light and sky glow.
The CIE Position Statement can be downloaded here.
夜間照明的目的是為了提升視覺舒適度與安全性。然而，在設計與設置照明裝置時，應避免產生不成比例的負面影響。
關鍵重點說明如下：
- 夜間照明的優點，例如：
- 降低夜間交通事故的風險。
- 增加人們走過或停留於某個空間時的安全感。
- 照明能讓空間更具吸引力，鼓勵該區域的使用與社交互動，進而減少社會排斥感。
- 然而，夜間照明也有其缺點，例如：
- 造成健康上的負面影響，包括干擾睡眠與晝夜節律。
- 干擾動植物的繁殖模式、遷徙路徑以及授粉週期。
- 增加天空輝光，導致夜空能見度下降，並影響天文觀測。
- 照明產業提供可減輕溢散光的解決方案，主要基於：
- 良好的照明設計。
- 透過在地知識與規劃，深入了解該空間的需求。
- 照明解決方案具備適應性，可依不同時間與需求做調整。
- 未來仍需進一步研究，以更深入了解人造夜間光照對物種與生態系統的影響，並開發針對溢散光與天空輝光的更佳量測方法。
可點擊此處檢視並下載這份CIE 立場聲明的完整文件