Air pollution - environmental pollution, Biology

Assignment Help:

Air Pollution - Environmental Pollution

The threat due to air pollution became apparent only when some severe episodes caused human casualty in USA, Britain (London) and Japan. In 1948 in Donara town of USA twenty people died and thousands became ill due to prolonged trapping of pollutants in the atmosphere emitted from steel mills and zinc smelter plants. In 1952 nearly 2,500 people died in London when the city got enveloped by sulphuric acid vapours, particulate matter and sulphur dioxide.

The most tragic episode in history occurred in December 3rd, 1984 at Union Carbide in Bhopal when approximately 36 tonnes of methyl isocyanate (MIC), an extremely poisonous gas used in the synthesis of sevin - a pesticide, escaped shortly after midnight from a storage tank and spread like mist and cloud over the city. The poison caught people in their sleep, awakening them in choking pain, terror and panic. Many got killed during sleep. It is estimated that around 10,000 people died and more than 2, 00,000 were injured. Many survivors suffer from permanent respiratory illness and impairment of vision.


Related Discussions:- Air pollution - environmental pollution

Define the elimination of dna ligase activity in a cell, Which of the follo...

Which of the following results from the elimination of DNA ligase activity in a cell? A. The oligonucleotide primers will not be removed from the genome - as they often contain

Excretion, State the excretory organelles of various organisms

State the excretory organelles of various organisms

Heat-shock response, Heat-shock Response When growing plantlets or tis...

Heat-shock Response When growing plantlets or tissues of plants are shifted to 42°C and above, the synthesis of normal proteins rapidly declines and instead a set of new prote

Explain about stacking faults, Explain about Stacking faults Stacking ...

Explain about Stacking faults Stacking faults happen in a number of crystal structures, but the common example is in close-packed structures.  Face-centered cubic (fcc) struct

What is the original concentration, A sample of yeast cells was serially di...

A sample of yeast cells was serially diluted 1/10 five times then serially diluted 1/3. the number of yeasts was338 yeasts per ml. what was the original concentration? Please show

Segmentation in regenerating annelids, Segmentation in Regenerating Annelid...

Segmentation in Regenerating Annelids Several worms as they grow continue to add new segments at the posterior end. In these, segmentation takes place in a growth zone located

Effect on microbial growth of pH, Q. Effect on Microbial Growth of pH? ...

Q. Effect on Microbial Growth of pH? Every microorganism has a minimal, a maximal, and an optimal pH for growth. In general, bacteria grow in the pH range of 6.0-8.0, yeasts 4

Define terpene alcohols - non glyceride fractions, Define Terpene Alcohols ...

Define Terpene Alcohols - non glyceride fractions? Partly free, partly esterified e.g. ferulic acid; these are found in significant amounts in rice bran oil, wheal germ oil, so

Transport of instruments to the sterilization area, Most dental offices hav...

Most dental offices have a designated area for instrument reprocessing that is separate from the dental treatment room. This is ideal, since cleaning, sterilizing and storing instr

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