What should be the processor and need and necessity to protect from effect of air pollution on Taj Mahal due to Yamuna river what are its it needs and its procedure to prevent from the yellowish colour of the Taj Mahal which is preventing through Yamuna river search
Answers
It is the acid rain that is most dangerous for the monument. Indeed, the inadvertent emission of sulfuric oxide, due to road traffic, causes acid rain. This rain colors the Taj Mahal yellow, tarnishing it, and, worse, it erodes it, attacking what is most fragile at first: the sculptures and incrustations of stone.
The authorities have, relatively recently, understood the stakes and put in place adequate measures, at least initially. Since 1994, no new factory can be established in a protected area of 10,400 square kilometers around the Taj Mahal. On the other hand, and this is the disadvantage, it is difficult, for obvious economic reasons, to move the existing factories, so they have been obliged to comply with the anti-pollution standards specially enacted for this zone. But of course, they do not have the means, and since the Supreme Court has defined them, nothing has really been done about it, the existing factories continue to pollute just as much.
On the other hand, the automobile pollution has largely been reduced in the sector since no motor vehicle is allowed to circulate in a radius of 4Kms. And that, it is respected, proof of the effectiveness of the Indian government when it is not impregnated in economic problems quite understandable.
Indirect pollution
In addition Yamuna, the river that passes next to the monument, also goes to Delhi, 150Kms further north-west. Now Delhi is a city heavily equipped in terms of polluting industry, this pollution is inevitably found in the river and reaches Agra very quickly.
The increase in water pollution had an astonishing consequence: Algae proliferate, and with them harmful insects, especially a local variety of mosquitoes, the chironomids. It is a variety of Diptera. Now, these mosquitoes make green droppings, the color of the algae they feed on. The mausoleum is regularly browned by these droppings that must also be cleaned regularly. Fortunately marble resists these droppings which, obviously, are not enough corrosive. Moreover mosquitoes are a nuisance for visitors, again we see the impact of the polluting human activity on tourism