Fereshteh BashiriChe Rosmani Che Hassan Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia angel_bashiri@yahoo.com International Journal of Fundamental Physical Sciences (IJFPS) 4 1 08-12 March, 2014 2231-8186 https://doi.org/10.14331/ijfps.2014.330061 Light pollution causes disturbances to humans, animals, and plants. This study evaluates its effects on human health, plant growth, animal behavior, and public awareness. Results show significant effects: 90% agree excessive lighting affects health, 70% have sleep issues, and 60% believe light attracts birds and insects. Video billboards, spotlights, car headlights, and street lights are identified as major sources. The findings suggest light pollution impacts ecosystems, human mood, and even links to breast cancer. The study calls for improved design and awareness to reduce these impacts. Light pollution, human health, animal behaviour, plant growth https://creativecommons.org/licenses/by/4.0/