The human health risks associated with exposure to LED light are mainly due to the spectral
composition of the light on the one hand and temporal light modulation on the other hand.
Revision of the EU Green Public Procurement Criteria for Road Lighting and traffic signals
In residential areas, in order to reduce the risk of human annoyance, the CCT of light sources shall be ≤3000K and a dimming or switch-off programme shall be implemented
Read MoreHealth impact assessment of introducing LED street lighting in Stockport
Evidence indicates that exposure to artificial bright light during the night-time suppresses melatonin secretion, increases sleep onset latency and increases alertness. Chronic ALAN exposure can cause circadian rhythm misalignment which may have negative effects on the psychological, cardiovascular and/or metabolic functions.
Read MoreSCHEER Report into Potential Risks to Human Health of LEDs
Children have a higher sensitivity to blue light and although emissions may not be
harmful, blue LEDs (between 400 nm and 500 nm) may be very dazzling and may
induce photochemical retinopathy, which is a concern especially for children below three
years of age.