Some common air pollutants: hydrocarbon, Biology

Assignment Help:

Hydrocarbon (HC):

Hydrocarbons such as methane, ethylene, acetylene is present in air. Most of these are low molecular weight gases and liquids at ordinary temperature.

Source:

(i)     Coal fields, natural fires.

(ii)   Incomplete combustion from car engines.

(iii) Industrial sources.

(iv) Agricultural burning.

(v)   Anaerobic decomposition of organic matter in soil.

               Organic matter 1942_hydrocarbon.png CH4  + CO2

Sinks:  hydrocarbons undergo a number of chemical reactions and photochemical reactions through a number and form water and CO2 at the end.

               Hydrocarbon   1942_hydrocarbon.png   H2O + CO2

Effects:

(i)     At high conc. Hydrocarbons have carcinogenic effect on lungs.

(ii)   Inhalation of benzene, toluene etc causes irritation in mucus membrane.

(iii) Responsible for the photo chemical smog.

(iv) Methane causes narcotic effects on human beings.

Control:

1.      Hydrocarbons tend to get oxidized in the atmosphere by series of chemical and photochemical reactions. This results in the formation of CO2, solid organic particulate and waste soluble gases. Solid particulate settles down and gases dissolve in water to soluble acids which washed down by rain.

2.      Hydrocarbons from vehicular traffic are controlled by the technique such as incineration, adsorption and absorption.

3.      Installation of a connection system in automobile reduces loss of hydrocarbons by evaporation from fuel tanks and carburetor.


Related Discussions:- Some common air pollutants: hydrocarbon

How hiv infection is mainly spread, It is mostly spread by sexual contact, ...

It is mostly spread by sexual contact, blood transfers and from HIV infected mother to child.

Explain restrictive cardiomyopathy, Q. Explain Restrictive cardiomyopathy? ...

Q. Explain Restrictive cardiomyopathy? It is a systemic or idiopathic disorder of the myocardium with clinical and hemodynamic features of diastolic dysfunction, closely simula

Asexual reproduction and cloning in plants, before stem cuttings are plante...

before stem cuttings are planted the cut end of the stem is often dipped in a hormone powder .what is the point of this?

Differentiate between sterilization and disinfection, Q. Differentiate betw...

Q. Differentiate between sterilization and disinfection? Sterilization is defined as freeing the object or substance from all life of any kind. It is the process by which an ar

Efficiency of feed utilization on complete feeds, Efficiency of feed utiliz...

Efficiency of feed utilization on complete feeds The complete diet concept is based on group rather than individual feeding and usually involves much fewer changes in diet for

What are infructescences fruits and pseudofruits, What are infructescences,...

What are infructescences, pseudofruits and parthenocarpic fruits? Infructescences are aggregated fruits created from inflorescences, aggregated flowers. Grape clusters are inst

Cytosketal mechanism, Cytosketal Mechanism There are two co-ordinate ...

Cytosketal Mechanism There are two co-ordinate processes in the cleavage (or cell division) that is displayed in Figure. Karyokinesis The mitotic division of nucleus

Explain the bioavailability of vitamin e, Explain the Bioavailability of Vi...

Explain the Bioavailability of Vitamin E? For dietary purposes, vitamin E activity is expressed as a-tocopherol equivalents (a-TEs). One α-TE is the activity of l mg α-tocophe

Difference between a bird heart and a mammalian heart, What is the main dif...

What is the main difference between a bird heart and a mammalian heart? The bird heart has a one aortic arch on the right side of its body while the mammalian heart has one on

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd