What is sink in environmental chemistry?

What is sink and receptor?

The “medium” (e.g. soil) or organism (e.g. fish) affected by the pollutant or contaminant is called a receptor, whilst a sink is a chemical medium or species that retains and interacts with the pollutant e.g. as carbon sink and its effects by microbes.

What is a pollution sink?

Term. Vehicle for removal of a chemical or gas from the atmosphere-biosphere-ocean system, in which the substance is absorbed into a permanent or semi-permanent repository, or else transformed into another substance.

What do you understand by the term sink with respect to pollution?

A carbon sink is anything that absorbs more carbon from the atmosphere than it releases – for example, plants, the ocean and soil. In contrast, a carbon source is anything that releases more carbon into the atmosphere than it absorbs – for example, the burning of fossil fuels or volcanic eruptions.

What is the meaning of environmental chemistry?

Environmental chemistry is the study of chemical processes that occur in water, air, terrestrial and living environments, and the effects of human activity on them. It includes topics such as astrochemistry, atmospheric chemistry, environmental modelling, geochemistry, marine chemistry and pollution remediation.

What do you mean by sink?

A sink is a large fixed container in a kitchen, with taps to supply water. It is mainly used for washing dishes. … If something sinks, it disappears below the surface of a mass of water.

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What is the example of sink?

An example of to sink is to drop down to a D average in a class. An example of to sink is for a boat to go beneath the surface of the water. The definition of a sink is a basin for water. An example of a sink is where many people wash dishes.

What is natural sink?

These areas are known as ‘natural sinks’. Some of these natural sinks are forest cover (trees, vegetation), oceans, and soil to some extent, all of which have the ability to take in carbon dioxide. … Trees and other land plants absorb carbon dioxide and serve as a storehouse, or ‘sink’, of carbon.

Are sink for gases that pollute the air?

The possibility of vegetation being an important sink for gaseous air pollutants was investigated. … A relationship between the absorption rate and solubility of the pollutant in water was also shown. It was concluded that vegetation may be an important sink for many gaseous air pollutants.

Why is carbon sink important?

It allows carbon to move through every ecosystem, sustaining life in them. … These sinks are very important in keeping the levels of carbon dioxide in the atmosphere at manageable levels. Common carbon sinks are undisturbed forests and soils, oceans, untapped fossil fuel wells, and photosynthesis of terrestrial plants.