Pollution

a waste treatment process that involves the combustion of substances contained in waste materials

The city's waste management system includes an incinerator to efficiently dispose of non-recyclable materials.

a risk to human health or to the environment caused by a biological source, especially microorganisms

The research facility was shut down after an accidental release of a biohazard, posing a serious risk to public health.

the semi-solid residue produced during sewage or wastewater treatment

The treatment plant removes sludge from the water before discharge.

the waste water and other liquid waste from homes, businesses, and factories, usually carried away through pipes and treated

The city is upgrading its sewage system to prevent flooding.

liquid waste or sewage discharged into rivers, lakes, or the sea

The factory was fined for discharging untreated effluent directly into the river, harming aquatic life and polluting the water.

a black powdery substance produced by burning materials like wood or coal

The old fireplace emitted a cloud of soot, leaving dark stains on the surrounding walls.

waste or debris produced by the disintegration or decomposition of organic or inorganic matter

The forest floor was covered in detritus, including fallen leaves, twigs, and decaying plant matter.

a container that holds a substance under pressure and releases it as a fine spray, usually using a propellant gas

He sprayed paint from an aerosol.

made up of distinct, separate particles

Particulate matter in the air can harm respiratory health.

a device in a vehicle's exhaust system that reduces the emission of harmful pollutants by promoting chemical reactions that convert them into less harmful substances

The catalytic converter plays a crucial role in reducing harmful emissions from automobiles by converting pollutants into less harmful compounds.

airborne particles, such as dust or debris, that settle after a nuclear explosion or similar event

After the nuclear test, the fallout spread over a wide area, causing environmental contamination.

a protective garment worn by workers to safeguard against exposure to hazardous substances or environments

The emergency responders donned hazmat suits before entering the contaminated area to protect themselves from hazardous materials.

a durable and lightweight plastic widely used for making bottles and food containers due to its strength and recyclability

Polyethylene terephthalate, commonly known as PET, is widely used in the production of plastic bottles and food packaging due to its durability and clarity.

not containing lead

Most cars today run on unleaded gasoline.

a soft greyish substance that is resistant to fire and heat and was previously used in the buildings, clothing, etc.

The old building was closed for renovation when inspectors found asbestos in the insulation, posing a health risk to occupants.