Vadodara: Ornate Laheripura Darwaja (Gate) faced structural damage when the tin roof collapsed on Monday.
But the historic gate for four centuries acting as the entrance to a walled city facing biodiesation over the past few decades.
In fact, it was not just Laheripura Darwaja, all four gates that kept the walled city in four different directions including Gendigate, Paniganer and Champaner Darwaja facing setbacks.
Biodetitiation accelerates due to heavy vehicle pollution other than pollution caused by nearby hotels, shopping and housing complexes.
A study conducted by Professor Arun Arya from the Department of Environmental Study of the University of M and Sanjay Prasad Gupta from the Raipur Circle of the Indian Archaeological Survey (ASI) has revealed that microorganisms spread organic and inorganic acids on the historic gate wall.
Duo has published a paper ‘effect of acceleration of microorganisms in the biodeservation of Laheripura gate in the city of Vadodara under the air pollution’ – in a book ‘anthropogenic pollution: causes and care’ in 2016.
The stone surface of the gate of the Laheripura becomes the black appearance because of dust deposits, dirt and Dry micro vegetation.
The deposit area seems very old because the formation of a dull green moss secondary, pale, white, comes across the surface of the stone, the researchers have noted.
Because of deposits, the beauty of the aesthetics of the monument has been affected.
“Moreover, this deposition is very dangerous for stone surfaces.
It is necessary to eliminate this increase from the surface,” this study stated.
“Atmospheric pollutants provide initial food to microbes to complete.
Microbes continue to grow on such rocky structures,” said Arya.
More microbial age.
Some microbes lasted for 20 to 30 years, several other microbes lasted for 60 to 70 years.
“They are still not active in extreme heat conditions but every time the conditions are beneficial, they begin to multiply,” he said.