Tuesday, June 4, 2013

Types of Pollutants Air Quality

Introduction to types of pollutants air quality
Pollution is the addition of any such constituents to air, water or land, which adversely alter the natural quality of environment. The constituent thus added is called pollutant.  Check this awesome  Three Properties of Ionic Compounds i recently used.


Types of pollutants sir quality


Pollutants can be categorized in two ways:

    According to source – Based on the source the pollutants are of two types:
a) Wastes from the industries, etc., as well as wastes from human and animal bodies.

b) Deliberate additions in the environment in the form of application such as pesticides and insecticides on cultivated plants, stored grains etc.

   Based on the degradability the pollutants are of two kinds:
a) Biodegradable pollutants are such substances that can be broken down by organisms and dispersed.

b) Non – biodegradable pollutants are those that are virtually indestructible. For example DDT and various detergents move up in the food chain (producer to primary consumer to secondary consumer and so on) becoming more and more concentrated at each trophic level

 Certain substances are totally non-biodegradable, for example aluminum, glass and plastic are not acted upon by any organism and if felt in environment they remain as junk for all the time.  

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Pollutants and pollution


These types of pollutants leads to various types of pollution, such as air pollution, water pollution, soil pollution, thermal pollution and noise pollution.

Air pollution – The pollutant responsible for this type of pollution are of two types namely:

Particulate air pollutants – consists of unburnt particles of coal, coke etc.
Gaseous air pollutants – consists of sulphur dioxide, nitrogen dioxide, hydrogen sulphide, carbon monoxide, ammonia etc.
Water pollution – the pollutants responsible for this type of pollution are:

Organic pollutants – dissolved in water reduces aquatic life
Poisonous insecticides – this primarily consists of DDT, and some other industrial wastes.
Sewage – untreated sewage causes cholera, typhoid etc.
Oil from washings of automobiles and oil spilling.
Similar types of pollutants contribute to soil, thermal and noise pollution as well.

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