L8 : Air pollution : Control - Air Water Pollution, Science, Class 8 Video Lecture - Class 8 | Best Video for Class 8

hello friends this video on air and
water pollution part eight is brought to
you by exam four calm no more fear from
exam so now that we saw how dangerous
air pollution can be it can wash so many
diseases in human beings in animals it
can even kill many of them it can also
destroy plants so basically can destroy
several life-forms interesting on earth
so now we should also find out ways to
control air pollution because if it
keeps on increasing in this way then our
deal will be very Miron new life places
on earth so let us see what are the
various ways by which we can control air
pollution so one thing that we can do is
filtration of industrial volumes before
being released into the atmosphere so we
saw that industrial emission is one of
the major cause of air pollution because
they release a lot of harmful substances
into the atmosphere so what we can do is
all those substances which comes out of
the industries now before they come out
like this into that most where they
should be filtered inside so inside they
should get filtered so that more toxic
substances can be converted into less
toxic substances and then those less
toxic substances are released into the
atmosphere so that means at least the
harmful effects will be reduced because
that is the more toxic substances are
not coming out of it
so that is one way now there are many
devices which can be used to convert the
more toxic to less toxic substances
inside industries so one such device is
electrostatic precipitator which is also
quite is ESP so this device is used to
remove more harmful substances from them
from the smoke which comes out of the
industries but in your hiatus
learn about electrostatic precipitator
items working in more detail so this is
one thing that can be done the next
thing that we should do is maintenance
of auto Mobile's to reduce pollutants
emission now we saw that the emission
from the auto Mobile's may also contain
a lot of harmful gases now how these
harmful gases are released so one
important cause is the use of petrol or
diesel in automobiles as fuel because
incomplete combustion of petrol and
diesel diesel lead to the release of
carbon monoxide which is very harmful
now quite a few things that can't be
done by us to maintain our optimum is
better so that they do not release such
harmful substances so we will see what
can be done with regards to optical path
so the next few slides we will talk
about or talk about maintenance
maintaining cleanliness it is not only
our duty to keep our house clean but
also to keep the entire locality and the
entire planet clean so we should stop
eating our dust means on the road and
make them dirty so we should dispose of
the soil and bases properly we should
also do proper segregation of wastes for
example those based materials which
contain substances that can be recycled
or reused they can be put together
similarly those substances which are non
biodegradable they should be put
together so that means we should
segregate bases properly and also
dispose their property and proper places
so trendiness maintenance is another
important thing that can be done
say no to crackers now
the body time comes and it is not only
on the day of diwali that we burn
crackers but almost fifteen days around
the body it's all records everywhere and
crackers normally create noise pollution
but it also happens a lot of harmful
substances when you burn them so and as
I said those who have problems of asthma
or breathing it becomes extremely
dangerous for them so
people suffering from asthma did not
come out of their houses during such
festivals so we should say no to
practice because there are other ways of
enjoying or celebrating a festival
rather than causing air pollution and
spoiling somebody's life noise reduction
now know as pollution is completely
under our control so if we want we can
reduce it completely we can stop
unnecessary honking of our vehicles on
the road we should stop playing loud
speakers at a very large volume we
should also as I said we should say no
to crackers
we should not party late at night all
this is not being lot of noises near
hospitals or schools so these are some
of the things that can be done from our
end to reduce noise proper disposal of
waste the waste materials need to be
disposed at the right place now if we
keep throwing or keep disposing beasts
in here and everywhere what happens is a
big heap of waste materials get
collected there as a result a lot of
insects come there a lot of
microorganisms start breeding there so
that particular area becomes a source of
several diseases so proper disposal of
beasts is very very important
alternative sources of energy
besides fossil fuels because if you know
about fossil fuels like over petroleum
gas so all these things they actually
need to emission of a lot of harmful
gases then you saw carbon monoxide is
one such example carbon dioxide is not
an example so such gases are released by
burning of fossil fuels now if we depend
on these fossil fuels completely for
energy in that case we will not have
another
they like this we have to compromise
with our environment quality so that is
why what we should do is we should try
to find out other sources of energy also
what kind of alternative sources for
example solar energy for example wind
energy or water energy which is also
called hydro energy or hydro power so
these value ancient sources of energy
which can be utilized for similar
purposes as a fossil fuels like most of
these fossil fuels they are used for
generation of electricity so similarly
you can use we made use of hydroelectric
power stations where electricity is
generated from water energy solar energy
can also be utilized for several
purposes so we should try to minimize
the use of fossil fuels so using
alternative sources of energy is one
option the other option is we should so
the other way of minimizing the use of
fossil fuels is by effectively utilizing
the energy sources like we should not we
should not unnecessarily use energy
sources for example let us say you have
to option my option is you can climb up
the stairs and the other option is you
can use a lift so which one will consume
less energy now if you talk about your
energy so if you walk up the stairs your
energy will be consumed and you will
remain fit but if you the use of the
lift in that is you are actually
utilizing electricity and every time you
use electricity you are actually
utilizing you are actually causing the
need for more energy resources so the
energy resources should be used wisely
only they need it so unnecessary usage
of energy resources should be avoided so
that our need decreases our need for
using fossil fuels decreases so if we
can reduce that we can also reduce a lot
of air pollution which is caused due to
burning of fossil fuels so these are
some of the measures which can be taken
from our end to control air pollution
now when I say there is much more things
which we end up doing for example we
often try to burn waste materials say
when I was talking about proper disposal
of wastes I should have mentioned this
as well but we should always avoid
burning of waste materials because when
you burn it you actually end up
releasing a lot of harmful gases instead
what can be done is at least the organic
wastes the called damming wastes can be
utilized to prepare manual valuing are
what they are biofertilizers that means
by living on a once living organisms the
waste materials dead and decaying
organisms they can be decomposed for a
very long period of time and then they
act as manual which helps in improving
the fertility of the soil and therefore
helps in plant growth so this is a
useful way of utilizing the waste
materials rather than just dumping them
and inviting insects and disease causing
organisms so this is a better way of
utilizing the organic wastes so these
are some of the things that can be done
from our end to control air pollution
now as I was telling about some of the
methods for example the filtration of
industrial pollutants so understand me
right that we have quite a few
filtration devices one such foreign
devices electrostatic precipitation so
what does this device - it removes 99%
of the particulate matter which comes
out of the industries so you see
removed wideness device so if this
device is installed within them but it
does sugar at the factory so we get rid
of 99% of the pack you've attracted so
only one person remains so that one
person might come out with the
Industrial Revolution but at least if
you compare it with the scenario when
there is no electrostatic precipitator
so it is far better than that that is
the amount of pollution which was being
created before so now that has reduced
at least so therefore if you look at
thermal power plants or industries so if
you just compare the industrial emission
coming out with two industries in the
first case it is without electrostatic
precipitator
so what do you see their vision is on
black it is full of the particulate
matter smoke calm cool glasses
the second is it is with ESP so Etro
static precipitator has actually removed
a lot of particulate matter so them so
their emission which comes out of it is
comparatively a lot not clean so which
one will be playful this or this
definitely this one and not this one so
that is why it is very very important to
install electrostatic precipitators on
several devices in industries and
factories so that we can reduce the harm
caused by the industrial emissions thank
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