Chapter 14 (third edition).ppt | Schoology

What is aquatic pollution?

The contamination of water bodies such as lakes, rivers, oceans, and groundwater.

What are common sources of aquatic pollution?

Industrial discharges, agricultural runoff, sewage, and oil spills.

What is eutrophication?

The process by which water bodies become enriched with nutrients, often leading to excessive plant growth.

What effect does eutrophication have on aquatic ecosystems?

It can lead to oxygen depletion, harming aquatic life and creating dead zones.

What are dead zones?

Areas in water bodies where oxygen levels are too low to support most marine life.

What is a threshold level in aquatic pollution?

The point at which pollution begins to cause significant harm to the ecosystem.

What is bioaccumulation?

The accumulation of substances, such as pesticides or heavy metals, in an organism.

What is biomagnification?

The increasing concentration of toxic substances in organisms at each successive level of the food chain.

What are the three types of aquatic pollutants?

Chemical, physical, and biological pollutants.

What is the primary law regulating water quality in the United States?

The Clean Water Act.

What role do wetlands play in aquatic ecosystems?

They act as natural filters, absorbing pollutants and providing habitat.

What is thermal pollution?

The discharge of heated water into natural bodies of water, often from industrial processes.

How does sediment pollution affect aquatic habitats?

It can smother aquatic life and disrupt feeding and breeding activities.

What are some effects of plastic pollution in oceans?

Ingestion by marine animals, entanglement, and habitat degradation.

What methods are used to monitor aquatic pollution?

Water sampling, biological assessments, and remote sensing.

What is the significance of the Clean Water State Revolving Fund?

It provides financial assistance for water pollution control and improvement projects.

What is a nonpoint source of pollution?

Pollution that does not have a specific location of discharge.

What is the role of government agencies in combating aquatic pollution?

To enforce regulations, conduct research, and promote public awareness.

What are the consequences of mercury contamination in aquatic systems?

It can lead to neurological damage in wildlife and humans.

What is the importance of public awareness in reducing aquatic pollution?

Informed individuals can advocate for sustainable practices and support policies.

What are green infrastructure solutions for water pollution?

Natural systems that manage water and provide environmental benefits.

What is the relationship between agricultural practices and water quality?

Intensive farming can increase nutrient runoff and pesticide pollution.

What practices can reduce agricultural runoff?

Buffer strips, cover crops, and responsible pesticide usage.

What is the impact of urbanization on water quality?

Increased runoff and pollution due to impervious surfaces.

Why is groundwater monitoring critical?

To detect and prevent contamination before it enters drinking water supplies.

What types of organisms are often used as indicators of water quality?

Macroinvertebrates, fish, and certain algae.