According to the survey, Dhaka has the highest average noise frequency at 119 decibels. The Bangladeshi city of Dhaka has the greatest level of noise pollution among the world's 61 most populous and influential cities.
Kolkata, India
This honk-happy city, according to The Telegraph, Calcutta, has honked its way to the top of the decibel charts.
Which are the noisiest cities in the world? Dhaka (Bangladesh), Moradabad (India), Islamabad (Pakistan), Rajshahi (Bangladesh), and Ho Chi Minh City (Vietnam) are the top five noisiest cities in the world.
So (drumroll) the world's noisiest cities and countries are…
Italy and the United States top the list with the highest average noise exposure in the world. Italians are most bothered by the din of the 'Autostrada', with 39% exposed to a high or medium-high level of traffic noise, including car horns and heavy vehicles.
Uttar Pradesh's Moradabad has found a place on the world map but not for the right reasons. The United Nations Environment Programme's latest report - that reveals interesting insights on noise pollution globally - has put the city on the second spot in the list of noisiest cities in the world.
Dhaka, the capital city of Bangladesh, has been ranked as the most noise polluted city globally, according to the recent 'Annual Frontier Report, 2022' published by the United Nations Environment Programme (UNEP).
The loudest sound in recorded history came from the volcanic eruption on the Indonesian island Krakatoa at 10.02 a.m. on August 27, 1883. The explosion caused two thirds of the island to collapse and formed tsunami waves as high as 46 m (151 ft) rocking ships as far away as South Africa.
European Environment Agency data shows the French capital is one of Europe's noisiest cities, with more than 5.5 million in the Paris region exposed to road traffic noise at 55 decibels or higher — which the World Health Organization defines as the threshold for cardiovascular disorders and high blood pressure — ...
So then, zero decibels is the smallest level of sound our ears can detect! So there's our answer, in its simplest form.
Tokyo, Japan
The Tokyo metropolitan area is the most populous in the world, with 35 million people. That's a lot of noise! Most of Tokyo's extreme noise pollution comes from construction work. Decibel levels in some areas can reach 90-dB or more.
According to the ranking Paris is the loudest city in Europe, followed by London and Rome.
Zurich, Switzerland. Silent sanctuaries are hard to come by in urban cityscapes, but Zurich might be your best bet, according to the World Hearing Index.
But for many tourists in Paris, the city is just too dirty. Whether it's the urine-soaked streets, ubiquitous dog poop or countless cigarette butts, the reality of everyday Paris is often at odds with the postcard version. Paris authorities pump a lot of money and manpower into keeping the city clean.
A recent study found that Guangzhou in China had the worst noise pollution, while Zurich in Switzerland had the least. The Worldwide Hearing Index was created by digital hearing app founders Mimi Hearing Technologies GmbH.
Sound is measured in decibels (dB). A whisper is about 30 dB, normal conversation is about 60 dB, and a motorcycle engine running is about 95 dB. Noise above 70 dB over a prolonged period of time may start to damage your hearing. Loud noise above 120 dB can cause immediate harm to your ears.
Light does not really affect sound. Sound is made of vibrations (aka rapid pressure fluctuations) in air, water, or solid material.
Hailey et al.) For the first time in history, earthlings can hear what a black hole sounds like: a low-pitched groaning, as if a very creaky heavy door was being opened again and again.
Dhaka is the loudest city in the world; Moradabad comes a close second. Which are the other Indian cities on the list? The United Nations report titled 'Frontiers 2022: Noise, Blazes and Mismatches', released last month, measured noise levels in 61 cities of the world.
Zurich, Switzerland
The cleanest air in the world is in Zurich. The pollution status is determined on the basis of average levels of PM2. 5 measured over a period of 12 months. And this Swiss city obtained an annual value of 0.51 µg / m3, which makes it the lowest in the world.
The cleanest country in the world is Denmark as per the Environmental Performance Index (EPI). Its EPI value is at 82.5.
Haleakala Summit, Hawaii: Hawaii has some of the most consistently clean air on Earth — even bustling Honolulu gets good marks from WHO — and the ability to get up above the clouds into thinner, cleaner air on top of Haleakala, in Maui, means there is even better stargazing here than at sea level.