Why are councils installing blue-rich LED street lights despite health concerns?

Councils are installing these lights primarily to reduce energy consumption and maintenance costs, aiming to meet climate change targets.

Are there safer alternatives to the blue-rich LED street lights being installed in the UK?

Yes, 'warmer' LEDs with a lower Correlated Colour Temperature (CCT) are considered safer alternatives that do not as significantly disrupt human sleep cycles.

Home / Health / UK Street Lights Linked to Cancer Risk

UK Street Lights Linked to Cancer Risk

Q: What are the health risks associated with blue-rich LED street lights in the UK?

Blue-rich LED street lights have been linked to increased risks of cancer, heart disease, and mental health problems, as well as disrupted sleep patterns.

1 Feb

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Summary

Blue-rich LED street lights may increase prostate cancer risk.
Millions of UK street lights emit blue-rich light, posing health risks.
Councils prioritize energy savings over public health concerns.

The widespread installation of low-energy LED street lights in the UK, driven by Net Zero targets, is raising significant health concerns among medical experts. Studies indicate that prolonged exposure to blue-rich LED light, which illuminates millions of streets nationwide, is associated with increased risks of cancer, heart disease, and mental health issues. One study highlighted a doubled risk of prostate cancer in men heavily exposed to this type of lighting.

Despite health warnings issued a decade ago, and ongoing research by bodies like the UK Health Security Agency, many local authorities continue to deploy blue-rich LEDs. This decision appears driven by a desire to cut energy consumption and costs, with over half of the UK's nearly 5 million LED street lights estimated to emit blue-rich light. Experts are now urging a review of current standards to balance efficiency with public safety and well-being.

Some councils are beginning to acknowledge the risks, with one vowing to switch to warmer LEDs after admitting past dismissiveness of health concerns. However, many residents report negative impacts, including disrupted sleep patterns due to harsh glare. As the British Standards Institution reviews lighting guidance, pressure mounts for a more cautious approach that prioritizes health over rapid green energy implementation.