What are the 2 main causes of water pollution?
The Causes of Water Pollution
- Industrial Waste. Industries and industrial sites across the world are a major contributor to water pollution.
- Marine Dumping.
- Sewage and Wastewater.
- Oil Leaks and Spills.
- Agriculture.
- Global Warming.
- Radioactive Waste.
What are main causes of water pollution?
Humans are the main cause of water pollution, which is triggered in many ways: by the dumping of industrial waste; due to temperature rise, that cause the alteration of water by reducing the oxygen in its composition; Or due to deforestation, which causes sediments and bacteria to appear under the soil and therefore …
What is water pollution and its causes and effects?
Water pollution occurs when harmful substances—often chemicals or microorganisms—contaminate a stream, river, lake, ocean, aquifer, or other body of water, degrading water quality and rendering it toxic to humans or the environment.
What are the five effects of water pollution?
EFFECTS OF WATER POLLUTION
- Destruction of biodiversity. Water pollution depletes aquatic ecosystems and triggers unbridled proliferation of phytoplankton in lakes — eutrophication —.
- Contamination of the food chain.
- Lack of potable water.
- Disease.
- Infant mortality.
How do humans affect water pollution?
Agriculture is also the main source of pollution in rivers and streams in the U.S. One way that agriculture causes water pollution is through rainwater. When it rains, pollutants, such as fertilizers, animal waste, and pesticides get washed from farms into waterways, contaminating the water.
What is water pollution and its effects?
Water pollution drastically affects aquatic life. Humans are affected by pollution and can contract diseases such as hepatitis through faecal matter in water sources. Poor drinking water treatment and unfit water can always cause an outbreak of infectious diseases such as cholera, etc.
What are the effects of pollution on animals?
Indirect pollution threatens the habitat of animals. Destruction of the ozone, global warming conditions and the infringement on habitat from solid-waste facilities all impact animals. Direct pollution is more readily studied. In this case, animals and their habitats are significantly impacted by toxic pollutants.
What are the effects of pollution on animals and birds?
The major effects of industrial air pollution on wildlife include direct mortality, debilitating industrial-related injury and disease, physiological stress, anaemia, and bioaccumulation. Some air pollutants have caused a change in the distribution of certain wildlife species.
What are the major effects of air pollution on plants and animals?
Air pollutants can harm ecological resources, including water quality, soils, plants and animals. Ozone, for example, causes foliar injury and reduced growth in some sensitive plant species as shown in the picture below.
What is the effect of pollution on humans and animals?
Pollution may muddy landscapes, poison soils and waterways, or kill plants and animals. Humans are also regularly harmed by pollution. Long-term exposure to air pollution, for example, can lead to chronic respiratory disease, lung cancer and other diseases.
What are the effects of air pollution on human and plants?
Air pollution can directly contaminate the surface of bodies of water and soil. This can kill crops or reduce their yield. It can kill young trees and other plants. Sulfur dioxide and nitrogen oxide particles in the air, can create acid rain when they mix with water and oxygen in the atmosphere.
What animal is most affected by air pollution?
Top level predators such as bears and eagles, among many others, are particularly susceptible to the bioaccumulation of these types of air pollutants. For example, mercury is of great enough concern that it is recommended we limit how often we eat certain types of fish that may contain high levels of heavy metal.
What animals are being affected by air pollution?
Particulate matter in the air has been linked to cardiac arrest in dogs and veterinarians sometimes attribute pet deaths to the effects of air pollution. Birds are affected directly by coal power production exhaust, which can damage birds’ respiratory systems. They also are affected by air pollution indirectly.
How many animals are killed by air pollution?
Over 1 million seabirds and 100,000 sea mammals are killed by pollution every year. People who live in places with high levels of air pollutants have a 20% higher risk of death from lung cancer than people who live in less-polluted areas.