What are the 2 most common groundwater contaminants?

What are the 2 most common groundwater contaminants?

Excess iron and manganese are the most common natural contaminants. Another form of contamination results from the radioactive decay of uranium in bedrock, which creates the radioactive gas radon.

What are 2 threats to the groundwater?

Stressors that affect ground water condition include application of pesticides and fertilizers to the land, waste from livestock and other animals, landfills, mining operations, and unintentional releases such as chemical spills or leaks from storage tanks.

What 2 problems can contaminate water lead to?

Contaminated water and poor sanitation are linked to transmission of diseases such as cholera, diarrhoea, dysentery, hepatitis A, typhoid, and polio.

What are the 2 types of water contaminant categories?

Types of Drinking Water Contaminants

• Physical contaminants primarily impact the physical appearance or other physical properties of water.
• Chemical contaminants are elements or compounds.
• Biological contaminants are organisms in water.

What are the common groundwater contaminants?

Groundwater contamination occurs when man-made products such as gasoline, oil, road salts and chemicals get into the groundwater and cause it to become unsafe and unfit for human use. Road salt, toxic substances from mining sites, and used motor oil also may seep into groundwater.

Which of the following is a major source of groundwater contamination?

One of the most important source of groundwater contamination is agricultural production stockard agricultural products such as fertilizers and pesticides seep into the groundwater and as a result of this there is significant pollution.

What causes groundwater contamination?

Groundwater contamination occurs when man-made products such as gasoline, oil, road salts and chemicals get into the groundwater and cause it to become unsafe and unfit for human use. For example, pesticides and fertilizers can find their way into groundwater supplies over time.

What are the major contaminants in water?

However, the most important contaminants from a health standpoint are naturally occurring chemicals that are usually found in groundwater.

• Arsenic.
• Fluoride.
• Selenium and uranium.
• Iron and manganese.
• Agricultural chemicals.
• Urban pollution.
• By-products of water treatment.
• Endocrine disrupters.

What causes water contamination?

Oil Leaks and Spills Large oil spills and oil leaks, while often accidental, are a major cause of water pollution. Leaks and spills often are caused by oil drilling operations in the ocean or ships that transport oil.

What is one major water contaminant of water?

Major contaminants include Giardia, Cryptosporidium, and E. coli. Treatment and distribution. While treatment can remove many contaminants, it can also leave behind byproducts (such as trihalomethanes) that may themselves be harmful.

What are the causes of ground water pollution?

Causes of Groundwater Pollution

• Natural Sources. Naturally occurring substances found in the soils and rocks can be dissolved in water causing contamination.
• Septic Systems.
• Hazardous Waste Disposal.
• Petroleum Products.
• Solid Waste.
• Surface impoundments.
• Agricultural Chemicals.
• Injection wells.

What causes ground water contamination?