Invisible urban pollution, also known as NOISE pollution, is a type of environmental pollution that is caused by the presence of loud and unwanted sounds in an urban environment. NOISE pollution can be caused by a variety of sources, such as traffic, construction, industrial activities, and even people talking. It can have a negative impact on people's health, as it can cause hearing loss, sleep disturbances, and stress. It can also disrupt wildlife habitats and interfere with communication.