High levels of pollution in Chennai city, weather cited as the reason
Posted on: 05/Nov/2019 9:41:23 AM
If you are feeling hazy and unable get a clear view of things in the Chennai city, do not worry.
The people belonging to the Chennai city would be surprised by this news. It is now brought out that almost throughout yesterday, 4th November, Chennai city remained hazy and pollution levels rose to unusual high. This has now triggered widespread speculation that smog in Delhi would have traveled down to the east coast due to wind flow.
Important piece of information is the day’s average of PM 2.5 (comprising of toxic organic compounds and heavy metal made of automobile exhaust, smoke) was at 262 milligrams per cubic metre.
The cause for high pollution levels in Chennai city due to smog travelling from Delhi was dispelled by TNPCB or Tamil Nadu Pollution Control Board and Indian meteorological Department of IMD. It was pointed out by TNPCB and IMD that high pollution in Chennai was because of local reasons like absence of sea breeze etc.
The monitors of Central Pollution Control Board had measured the daily average to be 107 for 3rd November, 56 for 2nd November, 100 for 1st November, 38 for 31st October, 59 for 30th October for PM 2.5. It was revealed by an official belonging to TNPCB that the pollution levels in Chennai city has been high and similar levels of high pollution was seen on the day of deepavali. He then spoke about how IMD had informed TNPCB that it was a local phenomenon due to meteorological conditions.
The official shed light on how usually PM 2.5 rises up to the upper atmosphere and get dispersed and how this did not happen in the last 2 days of time.
It was revealed by an official belonging to the meteorological department that sea breeze was not present and wind speed was less. This has been the reason for the haziness in Chennai city now. He then mentioned about how humidity was also a factor and how there was no rains. The smog from Delhi would not have traveled to Chennai because of the fact that Chennai gets easterly and northerly winds.
It is important to mention that on Monday PM 2.5 was 140 at 9 am but reduced to 108.87 at 10 am. Till 2 pm, PM 2.5 was hovering around 90 and between 5 pm to 6 pm PM 2.5 went up to 110 to 120.98. This was as per the hourly data from CPCB.
