1. Alex Benvenuti Jada Rowe Madison Medina Alejandro Gonzalez
KQ H4: I, II, III
Alex Benvenuti
Jada Rowe
Madison Medina
Alejandro Gonzalez

2. Groundwater pollution
Mining can cause metals to be released and contaminate groundwater
The use of chemicals in agriculture such as fertilizers can easily spread across vast areas and contaminate the groundwater greatly.
Urban runoff such as power plants and gas stations can contaminate groundwater and introduce unnecessary chemicals
The dumping of solid waste such as paint or leaded gas, which contains lead, can seep into the group contaminating the ground water
MEDC: USA and China dump mining waste into lakes and rivers
LEDC: Basically all of them dump everything into bodies of water because they lack the funds to afford equipment to collect waste.

3. Groundwater pollution

4. Nutrient Enrichment EUTROPHICATION HAPPENS NATURALLY
Nutrient enrichment accelerates it
More Nutrients in the water cause more algae to grow
More algae=More oxygen consumed by the algae
Algae blooms take up almost all the oxygen in the water, kills the wildlife
MEDC: USA, Florida has algae blooms
Due to runoff from fertilizers
LEDC: Most Sub-Saharan African countries
Have heavy pollution in their water.

5. Main sources of eutrophication
Agriculture- Runoff from fertilizers put nutrients in the water and take up oxygen
Storm water runoff- Storm water running off into the rivers and lakes
Industry- Dumping waste (and nutrients in the waste) into the water
Fossil Fuel combustion- acid
rain puts nitrates in the water

6. Impact of sewage disposal
Causes and accelerates eutrophication
Bioaccumulation and biomagnification of harmful chemicals in the sewage occur
Confined sewage plants have leaked into surrounding bodies of water and contaminated them

7. Sludge
Sludge: Residual material produced during sewage treatment of industrial or municipal wastewater (human waste, manufacturing chemicals, or landfill runoff)
Can contain pathogens, heavy metals, excess nitrogen and phosphorous, and other toxins

8. Affects on the Environment and Human Health
May contain pathogenic organisms, organic compounds, heavy metals, excess phosphorus and nitrogen
It was found that dumping sludge in the destroyed marine life, banned by EPA in 1988
Recognized infections as a result of sludge use: Hepatitis A/B/E(affect the liver), Giardia(diarrheal illness) and worm infestations,
MEDC: USA disposes of sludge in sewage systems, but some does leak out into the environment.
LEDC: India has basically no plumbing so waste and sludge is everywhere.