It is difficult to sleep in the evening with light from the admiral on the opposite floor or from the lights outside the window. The city's local standard, “Specifications for Outdoor Lighting Interference Restrictions,†has finally been formally released since it was solicited in July of last year, and will be implemented starting on December 1.
Optical interference regulations specific limits
When I was sleeping at night, the advertising light box on the opposite side was shimmering and bright, and the car was greeted by a huge flashing screen. The person in charge of the Bureau of Quality Supervision and Administration of the Municipality said that all these belong to the category of “light pollutionâ€.
The standard requires that when setting up various types of lighting around a house, the brightness of the lamps facing the bedroom windows and the illumination of the window facades should be accounted for and controlled. The standard also requires that when non-road lighting devices are installed on both sides of motor vehicle roads in the city, glare evaluation should be performed; it is not appropriate to set frequent lighting patterns in non-commercial and non-cultural entertainment areas of cities. According to different classifications, the standard specifies the specific limits of the light interference of the lighting device, including the light intensity limit of the lamps facing the direction of the windows of the residential building; the limit value of the surface brightness of the advertising signs; the light intensity of the lighting devices arranged on both sides of the sidewalks. And brightness and so on.
Rare trees must not have night lighting
The standard also emphasizes the light interference of animals and plants. For example, night scenery lighting should not be set for rare trees. Lighting time and light intensity should be controlled for lighting of ordinary trees. Lighting fixtures should not be installed on tree trunks, nor should they affect root growth of plants. . In addition, it is not appropriate to set up nightscape lighting in animal habitats and related protected areas.
The reporter learned that at present, there are no standards on light interference restrictions in China.
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