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21-30 of 35 for the Category : Waste & Pollution and the Subcategory : Air Pollution

Methane

( Article Type: Explanation )

Methane is an odourless and colourless hydrocarbon gas produced either by natural or artificial anaerobic decomposition of organic material.

Montreal Protocol

( Article Type: Explanation )

The Montreal Protocol was the original international instrument drawn up to ensure that measures were taken to protect the ozone layer.

Oxygen

( Article Type: Explanation )

Oxygen is a colourless, odourless, tasteless gas that is essential to life on earth. Its most important compound is water (H2O).

The ozone layer occurs in the upper atmosphere (strato-sphere) surrounding the earth. It protects life on earth by absorbing most of the harmful ultra-violet rays (such as UV-B radiation) coming from the sun before they reach the earth.

Particulates

( Article Type: Explanation )

Particulates is the term used to describe either particles of solid matter or droplets of liquid that are small or light enough to remain suspended in the atmosphere for short periods of time.

Photochemical Smog

( Article Type: Explanation )

Photochemical smog comprises a number of chemicals, mainly ozone, aldehydes, peroxyacetylnitrates (PANs) and nitric acid.

Plastics

( Article Type: Explanation )

Plastics are synthetic substances, which can be moulded and formed when soft and then set.

Polluter Pays Principle

( Article Type: Explanation )

This is a basic economic principle (currently being adopted in legislation by many countries) that requires the producers or generators of pollution to pay for the costs of avoiding pollution or of cleaning up or remedying its effects.

Pollution

( Article Type: Explanation )

Pollution comes in many forms and types. In its broadest sense, pollution can be described as the result of the release to air, water or soil from any process or of any substance, which is capable of causing harm to man or other living organisms supp

Scrubber

( Article Type: Explanation )

A 'scrubber' is the common term used to describe a piece of equipment that is designed to remove or 'scrub' toxic gases and other materials from the gases emerging from a chimney.