Timothy Lawler discusses responsible outdoor lighting and health impacts in Westchester

Responsible outdoor lighting took center stage at the West Chester Borough meeting on May 14, 2025, as Timothy Lawler, a member of the West Chester Green Team, presented critical insights on the impact of poor lighting practices. With new construction projects on the horizon, particularly in the Southeast Quadrant, Lawler emphasized the need for updated lighting ordinances to protect both the environment and public health.

Lawler highlighted the detrimental effects of excessive and poorly directed lighting, including the fading of starry skies, negative impacts on wildlife, and potential health risks associated with blue light emitted from modern LED fixtures. He pointed out that while LEDs offer energy savings, their blue light spike can disrupt sleep patterns and contribute to various health issues.

Using satellite data, Lawler illustrated that the Southeast Quadrant of West Chester has the highest levels of illumination, which correlates with a lack of tree cover and could harm local ecosystems. He urged the borough to consider adopting more effective lighting solutions, such as fully shielded fixtures and warmer light temperatures, to mitigate these issues.

Lawler also referenced successful lighting ordinances from neighboring towns, particularly Phoenixville, which has implemented rigorous standards for outdoor lighting. He encouraged West Chester to follow suit, suggesting that improved lighting practices could enhance safety and preserve the natural beauty of the night sky.

As the borough prepares for upcoming developments, the call for responsible outdoor lighting is not just about aesthetics; it’s a crucial step towards fostering a healthier, more sustainable community. The discussion sets the stage for potential policy changes that could significantly impact West Chester's environmental footprint and quality of life for its residents.