It was a Sunday. Around 7 am, I was woken by the sound of an auto idling outside my house. It had one of those loud put-putting engines, and the driver had parked the vehicle there waiting for one of my neighbours to step out. The noise echoed sharply around my block and was audible from everywhere within my house three floors above. Just as I prepared to step out and have a word with the driver, the idling stopped.
Just across the road from my house is a vendor of construction materials. Its proprietor runs a loud business. His resupply trucks arrive in the dead of night to offload sand and bricks. During the day, his employees are often heard shouting at each other as they work. During the weekends, they bring out a wood-cutting machine that shrieks loudly as they use it for several hours in the afternoon.
As the day wears on, the occasional canine screaming match breaks out nearby. At just around 10 am, another neighbour up the street revs his silencer-less motorcycle up before leaving for wherever he does at 10 am every day. The hawkers turn up one by one, blaring their wares and services — tender coconut water, fresh vegetables, “sofa repair”, spices, flowers, iron-whetting, and of course the kabadiwalas — in recorded voices blaring through small yet boisterous loudspeakers. These sounds are all crisscrossed by horn and engine noises from other vehicles passing by.
Often the only way to find silence here is for the Sun to beat down hard. That way no one steps out in the afternoon. I don’t even find birds on the pea tree outside. That’s also a cruel thing to wish for, but even if it’s just a little cloudy, the hawkers keep coming and going. The pea tree is a popular local source of shade: come 4 pm and a bunch of Swiggy delivery guys gather underneath for a chat, maybe a glass of tea. Their voices can be comforting, a reminder that you’re around other people. When you’re looking for just a minute of silence, however, it’s yet another irritant.
The day is a continuous drizzle of sounds but you’re probably thinking it’s an essential, even desirable part of city life — especially life in Chennai, with its oft-village-like vibes. But listening to them in isolation, as the government often seems to do, misses the point. There are of course the sounds we need, even desire: birds chirping at dawn, a fan creaking on a hot summer day, laughter from the neighbours’ houses, children making their way to school (and the sounds of band practice in the distance), voice lifting into the wind from the tea stall nearby… One of my neighbours practices playing the flute at night and he’s already very good at it. Another goes to bed listening to old Tamil film songs. I love them all.
These are sounds. Then there’s noise. Imagine it is raining constantly, relentlessly where you are and then one day there’s a storm. You haven’t worn dry clothes in a long time. The storm subsides soon after yet the pitter-patter rain continues. I expect you’d be quite irritable and just wishing the Sun breaks out soon. Noise, constant noise is like this — sounds born of a social order that has long forgotten their intrusive nature. You don’t have a moment’s peace. Your ears, and heart and mind, are constantly responding to something. Unless you’re really, really good at spacing out or can afford noise-cancelling earphones, there is no escape.
Even so, it might have been easier to deal with if the drizzle was all there was, but no. The evenings are the worst. There are two temples nearby. On any auspicious day — and there are about a dozen in a single month — devotional songs blare on loudspeakers. If the day is particularly auspicious, there are motorised floats bearing large idols lit by hundreds of LED lamps that, for some reason, face straight ahead. On Vinayak Chathurthi, a few such lamps lit up every front-facing apartment in our building through thick curtains at 4 am. Almost every Sunday evening there’s devotional karaoke on loudspeakers. Their only grace is to wind up at 10.30 pm, except of course if the occasion is, again, particularly auspicious.
My house is near those of two well-known Kollywood actors and about 200 metres away from a Dravida Munnetra Kazhagam bigwig. There’s almost always a police car patrolling the neighbourhood, yet the cops never question the noise or when it begins or ends. Even on Vinayak Chathurthi, these weren’t the folks to respond when a loud drum-beating procession set off from the temple at 12.40 am. The devotees piped down only after two policemen paid them a visit after I’d given them a ring on phone numbers the Greater Chennai Police had tweeted.
Even on less auspicious days, the ordeal isn’t done yet. The users of our local public dustbin don’t segregate waste. When the trash-collection vehicle rolls around at 11.30 pm, the workers attach each bin to its handles, and the driver then has the mechanism smash the bin against the rim of the container to ensure the bin yields its jumble of contents no matter how mucilaginous they’ve become. That slow-mo bang-bang-bang is in fact how the whole neighbourhood knows it’s nearly midnight.
Then finally there’s quiet, unless of course another barking match hasn’t already broken out.
***
Deepavali is coming up, and since the first week of September I’ve been enveloped with dread. The noise from firecrackers in the city — whichever city — has graduated from being part fun, part nuisance to just harmful. The Supreme Court’s mandate to firecracker manufacturers and consumers to switch to ‘green’ crackers did nothing to mitigate the demand itself, which is to say the kind of pollutants entering the air has changed — from more to less toxic — but the quantities may not have.
The court required these green firecrackers to be less noisy as well, but the new noise range is ironically no less harmful. They emit an estimated 100-130 dB, whereas research has registered harmful effects due to noise from 50 dB onwards and often considers 120 dB to be the threshold of human hearing — the point from which more sound pressure on the ears leads to pain more than perception.
A meta-analysis of studies with people from Canada, Europe, Japan, and the UK reported in 2014 that every 10 dB increase in traffic noise hiked the risk of developing heart disease by 8%. In a statement published in 2016, the American Academy of Nursing called noise “a public health hazard”. Other studies have linked extended noise exposure to stress, anxiety, cognitive difficulties, and depression. Some small studies in Indian cities, including Chennai, Jammu, and Vadodara, have reported an elevated prevalence of hearing loss among traffic police and auto-drivers.
All these effects, but stress in particular, is compounded when people are exposed to loud sounds when they least expect it — such as in the middle of the day, near a place of worship or a school, or at any time after 10 pm. Likewise, a very loud noise that lasts only for a brief moment may not be reason enough for a complaint, but it could still damage humans’ auditory apparatus and send stress levels soaring, yet there are no noise-based sanctions when such events occur.
On September 4, the Government of Tamil Nadu sanctioned funds for a project to produce a “noise map” of four cities in the State with more than a million inhabitants: Chennai, Madurai, Coimbatore, and Tiruchi. The project will install noise monitors near airports, railway stations, high-traffic roadways and intersections, and areas with industrial and construction activity, as well as in spots that require quiet, like near schools, places of worship, and hospitals.
Following the announcement, the Additional Commissioner of Police (Traffic) for Chennai, R. Sudhakar, told The Hindu that based on the project’s findings the city may adopt a system in which “decibel meters are installed at traffic signals. If noise levels exceed a certain threshold due to honking when the signal is red, the signal will reset and remain red for longer.”
I have every confidence in my compatriots to find ways to render such social engineering meaningless, if not counterproductive. What if there is a lone miscreant among the drivers waiting for a signal to change who wastes others’ time by blaring his horns at the last second? What if there is an ambulance or cop car that really needs to make its way to the front? The noise monitor may just falter in Chennai’s incessant heat and humidity. Or an informal market may erupt in each city for horns emitting sounds at frequencies that evade the monitor yet are still audible to vehicles nearby.
The State’s new noise-mapping exercise is (currently) restricted to permanent or semi-permanent sources of noise and doesn’t address the more common transient ones. Such sources include all those that haunt my neighbourhood and presumably most neighbourhoods in large cities. Their principal threat isn’t their isolated loudness per se — although that’s bad enough — but their interminability. By populating every moment with sound, they exacerbate the absence of quiet and heighten the consequences that other particularly loud sounds provoke.
Noise pollution in India is no joke but given the wildly varying realities with which the country often confronts its own laws, the Noise Pollution (Regulation and Control) Rules 2000 are amusing. The Rules demarcate the hours of daytime (6 am to 10 pm) and nighttime (10 pm to 6 am) and four kinds of spatial areas. In daytime, the noise limit in industrial areas is 75, in commercial areas 65, in residential areas 45, and in “silence zones” 50.
In all cases the unit is dB(A) Leq, which has an important physical meaning. ‘dB’ stands for decibel, a unit that expresses not an absolute value but the ratio between two values. When used to measure the loudness of sound, a dB denotes how many times more a given sound is louder than the threshold at which human hearing begins (a sound pressure of 20 micropascal). The ‘A’ in brackets refers to the use of a weight scale that combines a given amount of loudness with a constant that represents the perception of the human ear. Leq means the decibel value is a time-average — but this isn’t equal to adding up all the dB(A) values and dividing by the number of values. Because the decibel is a logarithmic measure, computing the Leq requires us to convert the dB(A) figures to sound-pressure levels first, calculate their average, and finally convert back to dB(A).
This mathematical exercise throws up a crucial perspective. The Noise Pollution (Regulation and Control) Rules 2000 allow people to register a complaint if some activity breaches the specific threshold by more than 10 dB(A) Leq. If, say, there is a loud sound of 80 dB(A) Leq for 20 seconds every minute, and this plays out for an hour, the average noise level comes to 75.22 dB(A) Leq in this period — which is just enough to lodge a complaint in a “silence zone”, a residential area or a commercial area, and not in an industrial area. But it will not be enough if the average is calculated throughout daytime. In any case, the police is unlikely to admit a complaint against the simple hawker responsible for that 20-second blip.
To make matters worse, Chennai and most other cities are haphazardly planned. Residential and commercial areas often spill into each other — assuming there has been a noise-wise zonation exercise. Even if they are chockablock, sounds carry over. It is thus a Kafkaesque challenge to register a complaint for violating the Rules unless the violation is altogether egregious. Even then, however, the damage to human (and animal) health is already done.
(The US National Institute of Occupational Safety and Health recommends its Sound Level Meter app — simply called NIOSH SLM — for smartphones. It “ measures workplace noise to determine if workers are exposed to hazardous noise. The free app combines the best features of professional sound levels meters and noise dosimeters into one simple tool.”)
***
I spent many of my childhood years in my grandparents’ house in T Nagar, opposite Ranganathan Street — a very crowded and noisy part of Chennai. There was always some sound around us. If it lapsed we’d know something was very wrong. It never did, of course. When I first travelled to Dubai, Sweden, and New York, I found the lack of ambient sounds unsettling, but over time I also got used to it, especially once I moved to Bengaluru in 2018, where my house was relatively secluded. Since then noises have frightened me, especially sudden ones, but I don’t feel badly about it. In fact I’m happy I lost the ability to be okay with it, an ability repeatedly souped up by less-than-ideal living conditions normalised by others around me.
If there is noise everywhere in space and time, the question of who can afford quiet becomes important. When I lived in Delhi, it was readily apparent that only a certain class of people could access clean air and the benefits for well-being such access conferred. The air is on paper a part of the commons but in the national capital, especially during winter, there were only three ways to find clean air: live in the upper parts of a high-rise building, live near or in places with access to large green parks, or get an air-purifier or two. All of these things are expensive, so the poorer and the more marginalised had less access to clean air.
In much the same way, quiet is becoming synonymous in Chennai with the upper-class, upper-caste experience of life given that it requires homes located far from thoroughfares, sound-proofing material, and expensive consumer electronics. Even on the road, quiet exists inside cars but is lost to every other mode of transport. Many of us are familiar with parents allowing their children to throw loud and protracted tantrums on public transport, but if shushing them is taboo, what of those with the deafening cellphone ringtones, those who speak loudly no matter where they are, and those who see fit to watch videos on full volume while you’re trying to sleep on the next seat?
In a country in which pollution of some form is almost everywhere, noise pollution appears to be the most acceptable and tolerated. Deepavali is now less than a month away, but then it is also the storm amid the drizzle that just won’t abate.