what are the major factors responsible for river pollution?
531958
['Sewage and water waste.', 'Dumping of solid waste.', 'Industrial waste.', 'Oil pollution.', 'Acid rain.', 'Global warming.']
538020
Organic matter and nutrients causes an increase in aerobic algae and depletes oxygen from the water column. This causes the suffocation of fish and other aquatic organisms. Sulfate particles from acid rain can cause harm the health of marine life in the rivers and lakes it contaminates, and can result in mortality.
482102
['Environmental Consequences. The environmental consequences of hydropower are related to interventions in nature due to damming of water, changed water flow and the construction of roads and power lines. ... ', 'Expensive. ... ', 'Droughts. ... ', 'Limited Reservoirs.']
373459
Nutrient pollution has impacted many streams, rivers, lakes, bays and coastal waters for the past several decades, resulting in serious environmental and human health issues, and impacting the economy. Too much nitrogen and phosphorus in the water causes algae to grow faster than ecosystems can handle.
179468
The Great Lakes suffer from three main sources of pollution: Heavy industry, manufacturing, and agriculture. This does not account for all of the pollution, but are a majority of the blame. Chemical pollution, Plastic pollution, and Nutrient pollution have been devastating to The Great Lakes.
54614
Study: Water pollution will cause most victims in future global hotspots. Population growth, economic development, urbanisation and climate change will have a big impact on water issues by 2050.
106124
['salinity.', 'sunlight.', 'temperature.', 'dissolved oxygen.', 'fertilizers.', 'pollutants.']
215207
['The Burning of Fossil Fuels. ... ', 'Agricultural Activities. ... ', 'Waste in Landfills. ... ', 'Exhaust From Factories and Industries. ... ', 'Mining Operations. ... ', 'Indoor Air Pollution. ... ', 'Natural Events.']
1381222
The quality of any body of surface or ground water is a function of either both natural influences and human influences. ... Globally, the most prevalent water quality problem is eutrophication, a result of high-nutrient loads (mainly phosphorus and nitrogen), which substantially impairs beneficial uses of water.
987035
Factories are also a major contributing factor to water pollution across the globe. The illegal dumping of contaminated water, gases, chemicals, heavy metals or radioactive materials into major waterways causes damage to marine life and the environment as a whole.
331740
['Metals and solvents from industrial work can pollute rivers and lakes. ... ', 'Pesticides are used in farming to control weeds, insects and fungi. ... ', 'Petroleum is another form of chemical pollutant that usually contaminates water through oil spills when a ship ruptures.']
50685
chemical pollution: spoiling a river, for instance, with industrial waste. In the air with fumes, etc. Thermal pollution: increasing river's mean temperature which reduce the oxygen in the water causing fish death.
1147390
['Acid Rain.', 'Overfishing. ... ', 'Urban Sprawl. ... ', 'Deforestation. ... ', 'Water Pollution. ... ', 'Population Growth. ... ', 'Waste Production. ... ', 'Genetic Modification of Crops. Environmental issues caused by man-made chemicals are becoming clearer. ... ']
388520
Water pollution is the contamination of water bodies, usually as a result of human activities. Water bodies include for example lakes, rivers, oceans, aquifers and groundwater. Water pollution results when contaminants are introduced into the natural environment.
57363
Common effects include decreased water quality, increased pollution and greenhouse gas emissions, depletion of natural resources and contribution to global climate change. Some of these are the direct result of human activities, whereas others are secondary effects that are part of a series of actions and reactions.
1024477
Other ongoing pollution issues affecting the river include: accidental sewage discharges, urban runoff, heavy metals, furans, dioxin, pesticides, and polycyclic aromatic hydrocarbons (PAHs). Numerous factories that once lined the Hudson River poured garbage and industrial waste directly into the river.
1424864
How does water pollution seem to be affecting diversity in some streams? Water pollution causes a lack of diversity in river ecosystems. ... Abiotic factor include: Wind, rain, soil, temperature, and water quality and quantity.