rd of its
average speed in summer.
So if there are many factories upwind
of the city, it would obviously transport SO2 gas emitted from them into Delhi
city thereby affecting the air quality.
Geography: Imagine a
bowl placed right next to a pile of soot and a huge fan blowing on the opposite
side of the bowl. This is the topography of the Northern part of India. Delhi lies North-east to the Thar Desert,
South-West of the Himalayas and North-West of the Central Plains. Also, India
is a country that is surrounded by a huge transcontinental arc with high levels
So whenever winds blow from the
coastal region, it picks up all the particulate matter along the way and drops
it in this bowl right before the Himalayas. The air pressure doesn’t help
either and leads to entrapment of all the pollutants that start building up
over the Northern Plains. To add to this
condition is the stubble
burning situation in Punjab and Haryana (North-West of India) that produces
a particulate cloud in New Delhi and the dust storms from Rajasthan that gets
trapped in the NCR region. This pushes the particulate matter levels to the
severe range throughout the year.
Sometimes, the particulate matter
sourced to Delhi is not even domestic! The smog activities are sometimes
triggered by particulate matter that has traveled
thousands of kilometers to India (Middle East region).
There is no overnight fix for bad
air quality,and it would take years, even
decades for policymakers to bring about a change, especially in Delhi.
Meanwhile, it makes a lot of sense to know the air you breathe and monitor the
changes to enable a better understanding of the existing condition.
in an API-based air quality monitor can help not
only us but also those policymakers and research institutions that are
striving hard to bring about a change in this air quality situation. Together
we change, together, we make a better tomorrow.
Know the air you breathe. Invest in our air quality monitor now and keep yourself and your loved ones safe. Now air quality monitor is Also available on
Gone are the days when Delhi
winters were something to look forward to. Now,
all it means is gloomy, cold and smoggy months that you spend pent-up inside
your homes. But did you ever wonder why only Delhi and its neighboring cities
suffer from smog? While there are many other cities with similar sources of
pollution and population level, the overall effect it imparts to the atmosphere
and as a result to us is considerably less.
When we talk about the most industrialized
states in India or the ones with the highest number of factories, we generally
imagine a smoky, hazy and suffocating place with a grim factory setup and a high chimney spewing black, sooty smoke.
According to a report, Tamil Nadu is the state with the highest number of
factories followed by Maharashtra, Gujarat, UP,and
Andhra Pradesh. So by our logic, these
must also be the ones with bad AQI. But then why is Delhi, the one city which
doesn’t feature in this list is the most polluted?
The answer to this is the
unfortunate combination of geographic topology, wind pattern, factory
positioning, meteorological patterns combined with anthropogenic sources
that our capital has to bear the brunt of. Let us tell you how.
Wind Pattern: This is
one of the most crucial factors impacting our air quality. The speed and
direction of the wind in a region determine its air quality. If it directs away
from the city, it would act as an automatic reset button and flush out the
On the other hand, if the wind
direction is towards the city blowing from the neighboring cities or states, it
is bound to cause further deterioration in air quality. This is exactly why
many cities in the northern part of India have a higher level of pollution
during winters when the average wind speed goes down by 1/3