Noise pollution is a noise that goes beyond the normal noise level to where it is no longer reasonable or acceptable, whether the noise is produced by a human, animal or some type of machine or equipment. Noise pollution can be an environmental nuisance that overexposes someone to a sound exceeding his or her tolerance level or disrupts the normal activity of human or animal life. Not only can noise pollution impact human health, but it can also cause stress among wildlife by interfering with their natural habitat and sounds of communication.
Light pollution pertains to light that intrudes on a natural setting, such as obscuring the stars at night, or excessive light such as lighting that extends beyond a property line leading to discomfort and nuisance. Excessive lighting can create glares that have a blinding effect thereby creating a potential hazard or can disrupt normal daily activity like sleep patterns. In the natural environment, excessive lighting can obscure the night sky or alter the ecosystem by introducing light in normally shaded areas. Such lighting can be disruptive to land and marine animals as they migrate or nest.