Six types of environmental pollution include land pollution, water pollution, air pollution, thermal pollution, light pollution and noise pollution. These forms of pollution affect the environment in different ways and with different levels of severity.
Land pollution includes any type of waste left on the Earth's surface. It can take many forms, from garbage on roads or in landfills to oil spills and industrial debris. Pesticides and other chemical agents can also cause land pollution.
Water pollution occurs when any pollutant enters a body of water, from rivers and streams to oceans. Many practices contribute to water pollution, including raw sewage, oil spills, chemical refuse and nuclear spills.
Smoke and gases emitted by human technology account for most air pollution. This type of contamination is caused by exhaust from cars and other vehicles, fossil fuels such as coal or natural gas, industrial production, and nuclear radiation.
Construction or manufacturing processes sometimes cause land or water temperatures to rise, resulting in thermal pollution. This increase in temperature can affect marine and plant life.
Light pollution comes from artificial light sources, including street lamps or home lighting. Light pollution limits visibility of stars and planets.
Noise pollution occurs due to the sounds created by transportation, construction and other human practices. This pollution can disrupt animals' habitats and also cause stress for humans.