Pollution: meaning, definitions and examples

This word is generally used to describe the introduction of harmful substances or products into the environment, especially the air, water, or soil. It is often used in discussion about environmental issues on a broad scale.

• The city is taking measures to reduce air pollution.
• Water pollution is a serious problem affecting marine life.

Contamination refers to the presence of harmful substances in something, making it unsafe or unsuitable for use. It is often used in contexts like food, water, and medical environments.

• The contamination of the water supply has raised health concerns.
• The laboratory is testing for contamination in the food samples.

This term is used to refer to a specific harmful substance that causes pollution. It is commonly used in scientific and environmental discussions.

• Carbon dioxide is a major air pollutant.
• The factory was fined for releasing harmful pollutants into the river.

Toxicity refers to the degree to which a substance can harm humans or animals. It is often used in medical, scientific, and environmental contexts to discuss the harmful effects of chemicals and substances.

• The toxicity of the chemical makes it dangerous to handle without protective gear.
• Researchers are studying the toxicity levels of various industrial pollutants.

Used to describe the introduction of harmful substances or products into the environment. Commonly used in discussions about environmental issues such as air, water, and soil quality.

• The authorities are taking steps to reduce air pollution.
• Water pollution is a serious problem in many developing countries.

Used when describing the presence of unwanted or harmful substances in a certain context, such as food, water, or laboratory samples. It often implies that something that should be pure or clean now contains impurities.

• The laboratory was shut down due to contamination of the samples.
• Food contamination can lead to serious health issues.

Generally used in a more moral or spiritual context, indicating that something sacred or pure has been corrupted or spoiled. This term has a strong negative connotation and is often used in literature or religious discussions.

• The defilement of the sacred artifact caused outrage among the believers.
• The land was considered holy until its defilement by the invaders.

Describes the act of affecting something in a negative way, making it less pure or clean. Often used in a metaphorical sense to describe a tarnishing of reputation or integrity.

• The scandal resulted in the tainting of his otherwise impeccable reputation.
• The chemicals have been slowly tainting the groundwater.