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Water pollutions affect on amphibians
Transcript of Water pollutions affect on amphibians
What Is Water Pollution?
Water pollution is the contamination of water bodies. Water pollution occurs when pollutants are directly or indirectly discharged into water bodies without adequate treatment to remove harmful compounds.
What Is Water Pollution? (cont.)
Water pollution affects everybody because a lot of endangered species are water dependent. This means they eat or depend on aquatic animals, such as amphibians. Also, the pollution can harm us if it's in our drinking water.
How Does Water Pollution Affect Amphibians?
It directly affects the amphibians because most of them, such as frogs, have semi permeable skin which makes them very sensitive to chemicals
What Is Being Done To Prevent Water Pollution?
The Clean Water Act is the primary federal law in the United States governing water pollution. The Clean Water Act has always required non-point source controls in state and regional water quality planning programs, but these controls have not
restored the non-point pollution problem.
What Can You Do To Help?
To prevent water pollution we can't flush medications, use more naturally based materials, avoid using fertilizers (unless they're natural), and only use them before it rains. We can also avoid throwing trash in bodies of water.
What Causes Water Pollution?
Simple causes to water pollution are everyday things such as fertilizer getting into runoff, flushing medication, and pesticides.
What Causes Water Pollution? (cont.)
Some bigger, more well known incidents include the BP oil spill, Duke energy, and the atrazine chemical that changes the gender of male amphibians. This chemical is used in farming fields and a lot of the times affects immigrants who work here.
Controlling Nonpoint Source Water Pollution: Can It Be Done?; Daniel R. Mandelker; Chicago-Kent Law Review, Volume 65, Issue 2, Article 9
Atrazine is used widely for weed control in corn and sorghum production. Usage of atrazine in the United States in 1993 was estimated at greater than 32,000 tons, more than 50% of which was applied in Illinois, Iowa, Nebraska, and Indiana.
A non-point source of pollution is when surface water runoff carries a variety of pollutants that damages water quality. Runoff from construction sites in urban areas and runoff from farming in agricultural areas are two examples. Non-point sources can do major damage to surface waters, but they also damage groundwater when runoff from non-point sources reach groundwater levels.
A point source of pollution is a single identifiable source of air, water, thermal, noise, or light pollution. Water pollution from an oil refinery wastewater discharge outlet is an example. Industrial wastes are commonly discharged to rivers and the sea in this way. High risk point source waste discharges are regulated by EPA.
Effects Of Atrazine On Amphibian Growth And Survival In Artificial Aquatic Communities; Enviromental Toxicology and Chemistry, Vol. 19, No. 12, pg. 2961-2967; 2000 SETAC
Hermaphroditic, demasculinized frogs after exposure to the herbicide atrazine at low ecologically relevant doses; Current Issue, Vol. 99, No. 8, Tyrone B. Hayes, pg. 5476-5480