तुफान पाऊस सुरू झाला की, मुंबईकरांना थेट २६ जुलै २००५ च्या महापुराचीच आठवण होते. थोड्याशा पावसानंतरही मुंबईत पाणी साचण्यामागे आहेत काही भूशास्त्रीय कारणे. मुंबईच्या भूगर्भात असलेल्या लाव्हा थरांची रचना याला कारणीभूत आहे. ज्यामुळे मुंबईला बेटांसारखा आणि बशीसारखा आकार प्राप्त झाला आहे. पण नाल्यामध्ये वाहत येणाऱ्या फ्रिज, बेड, गाद्या यांना निसर्ग नव्हे तर मुंबईकर आणि नालेसफाई व्यवस्थित न होणे याला मुंबई महानगरपालिका आणि कंत्राटदार जबाबदार आहेत. मुंबईच्या तुंबई होण्यामागची कारणमीमांसा समजून घेवूया...
#mumbai #heavyrainfall #mumbairain #waterlogging #waterlogged #26july #mumbaiflood #monsoonsession #monsoonscene #maharashtra #india
#mumbai #heavyrainfall #mumbairain #waterlogging #waterlogged #26july #mumbaiflood #monsoonsession #monsoonscene #maharashtra #india
Category
🗞
NewsTranscript
00:00 The dam that has been built by the government,
00:01 100% of the drains are clean.
00:03 Or the drains are clean.
00:05 The work of breaking down the dam
00:07 is done by the rain every now and then.
00:10 Being the 'Tumbai' of Mumbai,
00:12 it has two more important things to do.
00:14 And they are human-made.
00:15 The special structure that forms
00:17 when it falls from the bottom,
00:20 it is sometimes like a bed,
00:22 or sometimes it is shaped like a bed's cushion.
00:25 In many places, the drains are filled with plastic.
00:28 And because of that, we have the 'Tumbai' of Mumbai.
00:31 Not just plastic,
00:32 we can also put it in the drain when we see a fridge,
00:35 or when we see a bed,
00:38 and because of that, we have the 'Tumbai' of Mumbai.
00:40 This cauldron subsistence
00:42 is the most important reason
00:44 for the structure of Mumbai.
00:46 And it is one of the many reasons
00:49 why water is stored in Mumbai.
00:51 We have not kept a stone in the ground
00:53 where we see the soil.
00:56 We have vehicles,
00:58 and we have made a parking lot for them.
01:00 This is a way to be a part of our future generation.
01:05 Hello, I am Vinayak Parampillai,
01:22 from Lok Sabha, Ghost, Mumbai, Parwadhusre.
01:24 In this second episode,
01:26 we have been exploring the ancient Mumbai.
01:28 But while exploring,
01:30 we took a break in the last episode,
01:32 and then we came to Mumbai,
01:34 which is exactly 21st century.
01:36 The reason was the same, and it was natural.
01:38 July is the month of the month,
01:40 and you will see storms and rains.
01:42 The Mumbaiites remember
01:44 the 26th July 2005.
01:46 This was the day
01:48 when due to the rain,
01:50 the water of the rain,
01:52 the Mumbaiites lost
01:54 850 lives.
01:56 Apart from this, the Abjobudin was also affected.
01:58 What was the reason?
02:00 Why was the Mithi river flooded?
02:02 What was the reason for the situation?
02:04 We understood this in the last episode.
02:06 Today, we will understand
02:08 in this episode,
02:10 that is, every time after a little rain,
02:12 we will see what was the Mumbai's tumbai.
02:14 In the ancient Mumbai,
02:16 what was the reason
02:18 that kept the water in Mumbai?
02:20 We will understand
02:22 how this tumbai
02:24 was formed.
02:26 If we want to understand
02:46 how this tumbai was formed,
02:48 we need to remember
02:50 the earlier parts of the Mumbai.
02:52 If we remember this,
02:54 we will understand
02:56 that in one part,
02:58 we explained
03:00 the structure of the different
03:02 bays of Mumbai,
03:04 like Kulaba Bay, Varali Bay, Mahim Bay.
03:06 We explained
03:08 what happened.
03:10 While explaining this,
03:12 we touched on a thought in Google.
03:14 That thought was called
03:16 the cauldron subsidence.
03:18 When the Jwalamukhi is formed,
03:20 the shape of the Jwalamukhi is triangular.
03:22 The upper part of the triangle
03:24 suddenly bends
03:26 and falls down.
03:28 The special structure
03:30 that falls down
03:32 is sometimes like a bed
03:34 or sometimes
03:36 it is shaped like a bed.
03:38 This cauldron subsidence
03:40 is the most important reason
03:42 for the formation of Mumbai's bed.
03:44 It is one of the reasons
03:46 why Mumbai is
03:48 flooded.
03:50 While understanding
03:52 Mumbai's subsidence
03:54 and structure,
03:56 we took help
03:58 of Dr. Raymond Duraiswamy
04:00 in the earlier parts of the Mumbai.
04:02 Raymond Duraiswamy is a famous
04:04 subsidence expert,
04:06 but he is also the head
04:08 of the Environmental Sciences
04:10 department of Savitribai Phule Pune Vidyapit.
04:12 When we discuss with him,
04:14 we get to know
04:16 the reason for Mumbai's
04:18 flood.
04:20 This is very important.
04:22 We have seen that Mumbai's structure
04:24 is formed
04:26 due to the massive
04:28 Jwalamukhi eruptions.
04:30 While these massive eruptions were happening,
04:32 the different layers of lava
04:34 were coming up,
04:36 the old layer was going down
04:38 and the new layer was coming up.
04:40 If we look at Mumbai's structure,
04:42 we can see that there are
04:44 7 layers of lava on the lower side of Mumbai.
04:46 These 7 layers are not
04:48 straight layers.
04:50 There is a layer of basalt,
04:52 then a layer of shale,
04:54 then a layer of basalt,
04:56 then a layer of shale.
04:58 These are the 7 important layers
05:00 of Mumbai's structure.
05:02 When the lava flows
05:04 on a huge amount,
05:06 the soil around it
05:08 also flows.
05:10 A layer of lava
05:12 forms a layer.
05:14 This layer is
05:16 known as shale.
05:18 In this shale,
05:20 we have found the ancient Jeevash of Mumbai.
05:22 We have also
05:24 understood the story
05:26 behind it in the previous episode.
05:28 The point is that
05:30 there are 7 different layers of lava in Mumbai.
05:32 In the middle of the layers of
05:34 basalt,
05:36 there is a layer of shale.
05:38 We have to understand
05:40 the nature of shale.
05:42 The nature of shale is that
05:44 it holds water,
05:46 pulls water,
05:48 and pushes it out.
05:50 It does not let the water out.
05:52 When water fills up in Mumbai,
05:54 the water from the basalt layer
05:56 goes down.
05:58 The shale holds the water
06:00 and pushes it out.
06:02 It does not let it out.
06:04 What happens because of this?
06:06 The water is held
06:08 in such a way that
06:10 the water does not go down the shale.
06:12 The water flows down
06:14 through the shale
06:16 and is completely blocked.
06:18 The shale in Mumbai
06:20 is 10 meters in width
06:22 and 20 meters in length.
06:24 10 meters or 20 meters
06:28 is not a big difference.
06:30 Even if it rains a little,
06:32 the water in Mumbai
06:34 keeps the shale clean
06:36 and it is a Mumbai's 'tumbai'.
06:38 Another important reason is
06:40 the hydroclastite.
06:42 Let us take a simple example.
06:44 A glass is hot.
06:46 If we pour water on it,
06:48 the glass will crack.
06:50 Basalt cracks in the same way.
06:52 At that time,
06:54 the hydroclastite is formed.
06:56 We have seen two important reasons.
06:58 One is spillite
07:00 and the other is hydroclastite.
07:02 What happens between the two?
07:04 What has happened?
07:06 Some of the minerals go out
07:08 and other minerals remain.
07:10 Basalt cracks are formed
07:12 by the formation of layers.
07:14 So, when the water
07:16 in Mumbai is first used,
07:18 the water in the beginning
07:20 goes down
07:22 through the layers.
07:24 The shale at the bottom
07:26 keeps all the water dry
07:28 and does not release it.
07:30 So, the water remains in the shale.
07:32 What is the difference?
07:34 We have seen that the water is 10-20 m
07:36 in some places.
07:38 There is not much difference.
07:40 When the flood comes,
07:42 the water comes in very fast.
07:44 The water that is collected
07:46 from the bottom
07:48 is not released.
07:50 This is the situation.
07:52 The flood water goes out.
07:54 But the water that is collected
07:56 from the bottom
07:58 remains the same.
08:00 There is another scientific fact
08:02 that we should understand.
08:04 The water that is collected from the bottom
08:06 or the water from the sea
08:08 has a higher density.
08:10 So, it always stays at the bottom.
08:12 The rainwater that comes from the top
08:14 has a lower density
08:16 than the water at the bottom.
08:18 So, the water
08:20 stays at the top.
08:22 So, the water is the same on both sides.
08:24 In Mumbai,
08:26 the water that is collected from the bottom
08:28 has to go to the front.
08:30 The water that is collected in Mumbai
08:32 is like the shale carnivore,
08:34 the shale rock carnivore,
08:36 the very important rock carnivore
08:38 is the altered basalt.
08:40 What is altered basalt?
08:42 We have seen that this basalt
08:44 has been produced from the lava.
08:46 The basalt rock
08:48 is the water of the sea
08:50 that is around the water
08:52 that is collected in Mumbai.
08:54 The water of the sea
08:56 has a constant contact with the rock.
08:58 When the water of the sea
09:00 comes and touches the rock,
09:02 or has a constant contact with it,
09:04 the calcium in the basalt
09:06 goes away.
09:08 And after it goes away,
09:10 the lava that is formed
09:12 is called chloride.
09:14 This chloride is called the altered basalt.
09:16 This spillite of Mumbai
09:18 can be seen with the naked eye.
09:20 But for that,
09:22 you should go to the Chhatrapati Shivaji Maharaj
09:24 Terminus area.
09:26 There are two paths on both sides.
09:28 These paths are made of this spillite.
09:30 How can we identify this spillite?
09:32 This spillite,
09:34 the black colored basalt,
09:36 has a little green cover.
09:38 If you go to the VT area,
09:40 the CSMT area,
09:42 you can see this spillite
09:44 on the path.
09:46 If you want to see a better spillite
09:48 other than this,
09:50 you should go to the St. Xavier's College
09:52 on the other side.
09:54 There is a small church on the other side of this college.
09:56 And the building of this church
09:58 is made of this spillite.
10:00 There you will see
10:02 this black colored basalt
10:04 with a green cover on the top.
10:06 The fact that Mumbai is a 'tumbai'
10:08 has two more important reasons
10:10 and they are human-made.
10:12 One is that you, we,
10:14 all of us are 'Mumbaikers'.
10:16 And the second reason is
10:18 that the drainage system is not clean
10:20 from the Mumbai Municipality.
10:22 Now, why are we 'Mumbaikers'?
10:24 On 26 July, we came to know
10:26 that many places have
10:28 plastic drainage systems.
10:30 The plastic that we use,
10:32 we throw it in the same drains
10:34 as waste.
10:36 And in the same drains,
10:38 the plastic gets stuck somewhere.
10:40 The water flow
10:42 does not continue.
10:44 And then, it becomes a 'tumbai' of Mumbai.
10:46 So, the first reason for all this
10:48 is that 'Mumbaikers'
10:50 are the 'Karnibhut'.
10:52 If we take a recent example,
10:54 in the first monsoon of 2023,
10:56 the area of Andheri Purve
10:58 was completely flooded.
11:00 When we searched for this,
11:02 we came to know that
11:04 in Andheri Purve,
11:06 the Mogra Nala, which was not
11:08 connected to the station,
11:10 what all was found there,
11:12 what all was coming in the drain,
11:14 the bed was coming in the drain,
11:16 the donkey was coming in the drain,
11:18 these are not coming from anywhere.
11:20 These are all thrown by 'Mumbaikers'.
11:22 What all do we throw?
11:24 Not just plastic,
11:26 we throw it in the drain,
11:28 we throw it in the drain,
11:30 where we used the bed.
11:32 And because of that, it becomes a 'tumbai' of Mumbai.
11:34 So, the first reason for all this is
11:36 that 'Mumbaikers' are the 'Karnibhut'.
11:38 Secondly, as we all know,
11:40 the drains here are cleaned
11:42 every year, a lot of efforts are
11:44 made to clean the drains,
11:46 but the drains are never complete.
11:48 That means, 100% of the drains are not cleaned.
11:50 The claim made by the municipality
11:52 that 100% of the drains are cleaned
11:54 or the drains are clean,
11:56 the work of breaking this claim
11:58 is done every time, every year,
12:00 in the rain. On 26 July 2005,
12:02 'Mumbaikers' had a huge
12:04 important role.
12:06 We saw many reasons,
12:08 one of the most important reason
12:10 is that once again, you and I,
12:12 all of us 'Mumbaikers' are responsible.
12:14 What is that? If we look
12:16 at our society, our environment
12:18 or the surroundings,
12:20 we will notice that
12:22 the soil where we see,
12:24 we have not kept it as a land.
12:26 There was a time in Mumbai
12:28 when there were a lot of fields,
12:30 a lot of land was visible
12:32 in the surroundings of the society,
12:34 in their surroundings,
12:36 soil was visible.
12:38 But today, we do not see soil at all.
12:40 What is the reason for that?
12:42 We got vehicles and we made a parking lot
12:44 for these vehicles.
12:46 While making this parking lot,
12:48 we spread cement everywhere
12:50 and made a place for parking.
12:52 But what happened because of this?
12:54 The cement, your water does not flow.
12:56 So the water stays on the top only.
12:58 And because of that, once again,
13:00 there was a Mumbai tunnel.
13:02 If we do not want this Mumbai tunnel,
13:04 then we should make that land free.
13:06 So, at least, the remaining land,
13:08 where there is soil,
13:10 where there are fields,
13:12 or in the surroundings of the society,
13:14 if the place of the field, the place of the garden
13:16 is free, then please,
13:18 do not make a parking lot
13:20 by spreading cement there.
13:22 Because this is a way
13:24 to get a glimpse of our own
13:26 or the next generation of our future.
13:28 If this does not come,
13:30 then we should all look at one thing
13:32 from above, that is,
13:34 keep the free space of the land free.
13:36 Another very important request,
13:38 because of this,
13:40 I request you on behalf of LokSapta.com,
13:42 that we should avoid the use of plastic.
13:44 If you use it,
13:46 then whatever is left,
13:48 you can put it in the garbage can,
13:50 you do not put it in the river banks.
13:52 Today, we have understood
13:54 many reasons for Mumbai being a tunnel.
13:56 We are stopping here.
13:58 Till then,
14:00 do watch
14:02 Lok Sapta Live YouTube channel.
14:04 Do not forget to subscribe.
14:06 Share it. Watch it with your friends.
14:08 Tell others to watch it.
14:10 And definitely watch Lok Sapta Live.
14:12 Stay tuned.
14:14 (gentle music)
14:17 [MUSIC]