New Delhi, October 20, 2017: The Supreme Court had on October 9 banned the sale of firecrackers in Delhi during Diwali in order to counter the pollution, deteriorating air quality and smog-like conditions that have come to be associated with the festival in recent times.
While a radical change was not expected following the ban on firecrackers, a humble and promising beginning could be witnessed on Diwali with majority areas in Delhi reporting much lesser noise and smoke till 6 PM, compared to previous years.
However, as the festive spirit picked up from 7 PM onwards, the hopes for a pollution-free Diwali got lost behind the growing echo of the crackers.
Pollution Levels on Diwali
Despite the much talked about the ban on firecrackers, pollution monitoring stations placed the capital in the ‘red zone’, indicating ‘very poor’ air quality. According to the stats available, on Diwali day around 7 pm, online indicators showed a rising trend in the volume of cancer-causing ultra-fine particulates PM2.5 and PM10 that are capable of entering the respiratory system and reach the bloodstream.
PM2.5 and PM10 are the extremely fine particulate matter with the digits representing their diameter in micrometers. They are a major component of air pollutants that threaten both, our health and the environment at large.
However, data from the Central Pollution Control Board (CPCB) suggested that the air quality in Delhi on Diwali was better than last year.
On Thursday, the Air Quality Index (AQI) value was 319 which placed the city in the ‘very poor’ category. However, the AQI value on Diwali last year was 431 and the city was placed in the ‘severe’ category.
According to data from SAFAR (System of Air Quality and Weather Forecasting And Research), the 24-hour rolling average at around 11 PM was revealed as 154 and 256 micrograms per cubic meter for PM2.5 and PM10 respectively.
According to SAFAR data, pollution levels were expected to soar between 11 PM and 3 AM.
Pollution Levels in the Morning after Diwali
As the night progressed, PM2.5 levels recorded a sharp rise in multiple areas in and around Delhi, with 15 times increase in areas like India Gate
As per data from Delhi Pollution Control Committee (DPCC), PM2.5 levels at 6 AM in,
India Gate – 911 microns (Normal level – 60 microns)
RK Puram – 776 microns (13 times more than usual)
Ashoka Vihar – 820 microns (14 times more than normal)
Anand Vihar – 617 microns (10 times more than normal)
A sharp rise was observed in the PM10 levels in the early hours of the morning after Diwali which suggest hazardous pollution levels in Delhi.
As per data from Delhi Pollution Control Committee (DPCC), PM10 levels at 6 AM in,
India Gate – 985 microns
RK Puram – 1083 (11 times more than usual)
Anand Vihar – 2402 microns (24 times more than normal. Normal level is considered around 100 microns)
While the ban on firecrackers imposed by the Supreme Court aimed to reduce pollution levels in Delhi, figures from pollution monitoring system paint an unhealthy picture with amplified levels of air pollution.
Official figures from the Central Pollution Control Board (CPCB) are yet to be announced today. However, judging from the data available, it won’t be wrong to say that pollution levels in Delhi have increased post-Diwali.
Air pollution is a major concern nowadays and has major effects on one’s health
There are many toxic air pollutants in our environment which can cause severe health hazards
Health-related problems like asthma, headaches, nausea, etc. can be caused as an effect of air pollution
Air Pollution and their dreadful consequences are not some newly found phenomena of the new-found world. There have been instances of hazardous effects even in the past. The three major historic documentation, dating back to the middle of the 20th century, happened at Meuse Valley in Belgium, Donora in Pennsylvania, and London. The most gruesome of the three is the well-known London mishap that claimed over 4000 lives during the episode, due to temperature inversion and associated elevated levels of Air Pollution, and over 8000 lives in the subsequent period.
Mankind is in a fast-paced race, always in the process of trying to outwit each other. The numerous developments born out of this race have brought along with them dreadful health consequences. Air Pollution is one such inadvertent yet a disregardful act by humans. The pollution does not begin only when you step out of your homes but is present within your safety havens itself.
According to the World Health Organization report in 2014, 92% of the world population was living in places where the air quality guidelines levels were not met. Outdoor Air Pollution was cited to be the cause of 3.7 million premature deaths in both cities and rural areas. Around 80% of those deaths were due to heart diseases and stroke, and the rest were due to respiratory illnesses and cancers due to exposure to fine particulate matter.
Air pollutants categories:
Air pollutants are categorized into two groups based on their impact, Criteria pollutants and Toxic air pollutants. Criteria pollutants include particulate matter (PM), ozone (O3), sulfur dioxide (SO2), nitrogen dioxide (NO2), carbon monoxide (CO), and lead (Pb). (defined by the United States Environmental Protection Agency in the Clean Air Act). These pollutants are present everywhere and cause health issues when present at significant ambient levels. In general, the criteria pollutants are regarded as the cause of most respiratory and cardiac issues.
Toxic air pollutants are also known as “hazardous air pollutants,” are substances that cause cancer or lead to other potential non-cancerous effects on the reproductive and neurological systems and have disastrous consequences in the development process. It is also assumed that there is no threshold level of exposure required to cause cancer. Meaning any amount of exposure to these toxic pollutants can lead to cancer.
At risk Populations:
In any geography, the already ailing and sick (pre-existing medical condition) population is more at risk for suffering from the ill effects of air pollution. Apart from this category, young children are the next at risk.
The reason for children being affected more is that they have higher breathing rates than adults. Therefore, they unknowingly inhale a lot more pollutants than an average adult. The potential for exposure is also increased with increased amount of time spent outdoors. The developing lungs of the young people have a limited metabolic capacity to placate toxicity.
Air Pollution Respiratory Diseases:
The small particulate matter of the criteria pollutants has the capacity to reach the lowest portion of the lungs, where the gaseous exchange occurs. The larger particles get trapped in the nose and the medium- sized ones settle in the tracheobronchial region.
The effects of the settlement of these particles are upper and lower respiratory symptoms, asthma attacks, loss of quality living days, and restricted activities. Chronic exposure to particulate matter has also been associated with the development of chronic bronchitis- inflammation of the lining of the bronchial tubes. This condition presents as a cough with mucus.
It is a commonly known fact and an “ought to be stressed upon” fact that chronic exposure to polluted air can also lead to the cancer of the lungs.
Ozone, an oxidant gas that is poorly water-soluble, travels throughout the respiratory tract due to its nature of solubility. It reacts with the molecules on the surface of the lung and leads to pulmonary oedema, inflammation, and the destruction of epithelial cells that line the respiratory tract. Children who stay outdoors in high Ozone areas develop asthma. Some of the disastrous effects are permanent in nature.
Some more Criteria air pollutants:
When Carbon monoxide reacts with blood haemoglobin, it reduces the oxygen-carrying capacity of blood and hence can cause damage to the nervous system. It causes a headache, fatigue, dizziness, coma, respiratory failure, and eventually death.
Nitrogen dioxide is mostly an indoor air pollutant released due to the increasing use of gas stoves. Exposure to high levels of nitrogen dioxide can lead to respiratory distress with symptoms such as cough, shortness of breath, and tightness in the chest.
Air Pollution Cardiovascular Effects:
The above-mentioned actions of air pollutants in the respiratory tract can also affect the cardiovascular system. The inflammation in the breathing tract induces transient hypercoagulability (abnormal blood clotting), the progression of atherosclerosis, and propensity to plaque rupture, especially in people with coronary atheroma. Long-term exposure to Air Pollution can also speed up the atherogenesis process, heart rate invariability, and arrhythmia (irregular heartbeat). Some recent studies have also found a significant relationship between heart attack (Myocardial infarction) and exposure to polluted air.
Air Pollution in Reproductive and Child Health:
Long-term exposure to the air pollutants poses risks even to an unborn child. It causes Intrauterine growth restriction -low birth weight at term, intrauterine growth retardation, smaller fetus for gestational age etc.
Indoor Air Pollution :
Some of the major causes of indoor air pollution are indoor smoking and burning of fuels for cooking purposes, especially in the second and third world countries. The people in these countries cook and heat their homes with biomass fuels and coal. Thus the main noxious gas released is sulfur dioxide, that causes respiratory issues and eye irritation
Quality of life:
Man is not just affected physically but his mental peace takes a toll too when the feelings of insecurity and the perception of having to live in a hazardous environment take over. Severe annoyance, sleep disturbances, reduced the ability to concentrate, communicate or perform normal daily tasks also accompany the psychological stress issues.
Some of the issues are too massive to be controlled at an individual level but a resolution to change can, of course, make a significant impact. Individually we are just one drop of water but together we can make a big ocean.
Simple steps involve following the government regulations in your state regarding the upkeep of your vehicles, carpooling, avoiding the burning of coal, adequate ventilation of your homes to dilute the effect of indoor air pollutants among others.