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Monthly DNA
06 Nov, 2023
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Tamil Nadu has allotted Rs 25 crores to Project Nilgiri Tahr which was launched in 2022 to protect and conserve the animal.
The Eravikulam National Park in Kerala is home to the largest population of the Nilgiri tahr, with more than 700 individuals.
Nilgiri Tahr is Tamil Nadu’s State Animal and the State celebrates October 7 as Nilgiri Tahr Day to honour hunter-turned-conservationist ERC Davidar.
Nilgiri Tahr finds mention in one of earliest Tamil epic Silapathikaram as ‘varai aadu’.
The 2nd edition of the World Food India 2023 held at Bharat Mandapam in New Delhi.
Reverse Buyer Seller Meet provides an opportunity to prospective importers to interact with their Indian counterparts about the requirements and to increase the potential of India’s exports.
Food processing industry has emerged as the sunrise sector in India and the country stands at 7th position with an overall export value of more than 50,000 million USD.
What is air quality index?
The Air Quality Index is acquired by measuring emissions of eight major pollutants present in the air: Particulate matter (PM2.5 and PM10), Ozone (O3), Carbon Monoxide (CO), Nitrogen Dioxide (NO2), Sulphur Dioxide (SO2), Lead (Pb) and Ammonia (NH3) emissions. Readings are noted every hour. Each country has their air quality indexes based on its air quality standards.
Air Quality Index India
The government agencies are responsible for communicating to the public about the health hazards and how to keep a check on them. Under the Swachh Bharat Abhiyan, the National Air Quality Index was launched in September 2014 in New Delhi to measure India’s air quality index.
The Central Pollution Control Board (CPCB) has formed an expert group of medical professionals, air quality experts, academia, advocacy groups, and SPCBs. Also, a technical study was awarded to IIT Kanpur. In 2014, the IIT Kanpur and the expert group recommended an AQI scheme for India.
Six cities of India- New Delhi, Kolkata, Mumbai, Pune, and Ahmedabad have a continuous monitoring system that records data in real-time.
Instrument to Measure Air Quality
Few instruments that are used for measuring air quality are:
Calculation of AQI
The computation of the AQI is based on the average air pollutant concentration over a specified period, which is obtained from an air monitor or model.
The AQI increases because of an increase in the emission of air pollutants; for example, during heavy traffic or forest fire, a high value of AQI is observed. In addition, due to anticyclone or temperature inversion, Stagnant air leads to high concentrations of pollutants in the air. This results in chemical reactions between air pollutants and hazy conditions, thus increasing the AQI.
Particulate Matter or PM: A substantial pollutant
PM 2.5 and PM 10 is the most common method of measuring air quality. It measures the particles in micrograms per cubic metre. As a UPSC 2023 aspirant, you must know about Particulate Matter or PM. It is a mixture of solid particles and liquid droplets present in the air. While some particles such as dust, smoke and soot are visible through naked eyes, numerous others are visible only through an electron microscope. Pollutants emitted by power plants, industries, automobiles, etc., form complex chemical reactions in the air, thus producing particulate matter.
Categories of Air Quality Index
The National Air Quality Index has set up six AQI categories: Good, Satisfactory, Moderately polluted, Poor, Very Poor, and Severe. Each category specifies health impacts associated with it as mentioned below given table:
AQI |
Category |
Health Impacts |
0-50 |
Good/ Safe |
Minimal Impact |
51-100 |
Satisfactory |
Sensitive people might experience minor breathing discomfort |
101-200 |
Moderately polluted |
Lung disease patients may have discomfort in breathing, and heart disease, children and older adults might experience discomfort |
201-300 |
Poor |
Breathing discomfort on prolonged exposure, and discomfort to heart disease patients |
301-400 |
Very poor |
Prolonged exposure might lead to respiratory illness. Severely affects people with lung and heart diseases. |
401-500 |
Severe |
While healthy people may experience respiratory problems, lung or heart disease patients can have severe health impacts. Even during light physical activity, people may experience health impacts. |
Under the current affairs quiz, you will come across questions related to the air quality index of India and measures taken to manage the value to a safer level or how to protect our health from the adverse effects of air pollution.
Graded Response Action Plan (GRAP)is a set of emergency anti-air pollution measures that kick in when air quality deteriorates to certain threshold in the Delhi-NCR region which was notified in 2017.
Graded Response Action Plan (GRAP)
With the National Capital Region’s (NCR) Air Quality Index (AQI) deteriorating to the ‘severe’ category, the Commission for Air Quality Management invoked measures under Stage 4 of the Graded Response Action Plan (GRAP) with immediate effect.
Commission for Air Quality Management (CAQM) is a statutory body responsible for formulating strategies to combat pollution in the region.
GRAP stages |
Activation Criteria |
Stage 1 |
When the AQI is in ‘poor’ category (201 to 300) |
Stage 2 |
When AQI is in ‘Very poor’ category (301-400) |
Stage 3 |
when the AQI is in ‘Severe’ category (401-450) |
Stage 4 |
When AQI rises to the ‘Severe +’ category (>450) |
The BS-VI fuel was estimated to bring around an 80% reduction of sulphur, from 50 parts per million to 10 ppm.
3 major policy decisions of EPCA and GRAP are the closure of the thermal power plant at Badarpur, bringing BS-VI fuel to Delhi before the deadline set initially, and the ban on Pet coke as a fuel in Delhi NCR.
Recently, scientist estimated that the total taxonomic diversity of Chilika lagoon in Odisha is about 1,071 families across the tree of life using environmental DNA (eDNA) method.
Chilika lagoon in Odisha is the country’s largest brackish water lagoon.
Significance – It is cheaper, faster, and highly scalable to large freshwater and marine ecosystems which can help in monitoring and conserving the rich biodiversity of our country.
Scientists have collected samples of seawater from the vicinity of a plane wreck of the 2nd World War to look for floating eDNA.
According to a study, Birds living within vicinity of gold mining were found to have over 4 times higher mercury concentrations than those living at other sites across the tropics of Central and South America.
Mercury contamination – It is global as mercury emissions disperse widely in the atmosphere. They are
According to World Health Organization (WHO), mercury is one of the top 10 chemicals or groups of chemicals of major public health concern.
During the last 150 years, human activities have more than doubled natural amounts of mercury in the atmosphere.
Mercury (Hg) is also known as ‘quicksilver’, is the only elemental metal that is liquid at room temperature which is used by gold miners to separate the precious metal from sediment.
In 2023, for the 1st time, scientists observed that mammals were showing signs of mercury contamination near a Peruvian gold mining hotspot.
The prize is open to authors of any nationality based anywhere in the world and working in any language provided the nominated work is available in English and published in the UK.
The RBI reiterated that Rs. 2000 bank notes continue to be legal tender.
The list includes philanthropists who donated more than Rs 5 crore in the financial year 2023.
The operation thwarted a coup attempt against the Maldivian Government headed by President Abdul Gayoom.
The portal provides information on the type of facility, distance, test availability, test cost, and turn-around time.
Karnataka has stepped up surveillance after a mosquito pool in Chickballapur was found to be positive for Zika virus. It is a vector-borne flavivirus. Zika virus is a mosquito-borne virus 1st identified in Uganda in 1947 in a Rhesus macaque monkey followed by evidence of infec
According to UN Report, the money available to developing countries for adaptation measures to increasing climate change has been declining, and nowhere close to the scale of requirement. Adaptation Gap Report – It is an annual publication by United Nations Environment Pro
Recently, Energy Efficiency Services Limited (EESL), a joint venture of public sector undertakings (PSU) under Ministry of Power have launched NCEP and EEFP. National Efficient Cooking Programme (NECP) – A subset of the Clean Cooking Scheme It focuses on Non-Solar/Electricit
The strength of the gravitational force depends on the gravitational constant.Any mass warps the fabric of space-time around itself and more the mass, the more the warping. Gravity – It is the force that an object feels when travelling along the warped path which tends to move the o
It is important to reflect on the progress made in conserving and sustainably using the biosphere reserves. What is a Biosphere Reserve? It is an international designation for representative parts of natural and cultural landscapes extending over large area of terrestrial or coast
After Pakistan’s deadline expired for undocumented foreigners, about 1.7 million people were forced to leave Pakistan across the Torkham border. The Torkham border crossing is a major border connecting Nangarhar province of Afghanistan with Pakistan's Khyber Pak
Dholes, also known as Asiatic wild dogs, are wild dogs native to Asia and genetically similar to African wild dogs. In India, they are found in 3 clusters (Western and Eastern Ghats, central Indian landscape and North East India). Conservation Status CITES – Appendix II IUCN -
Japanese scientists have said that Mouse embryos were grown in space (International Space Station) for first time. The embryos cultured under microgravity conditions developed normally into blastocysts, cells that develop into the foetus and placenta and demonstrates that gravity had no signifi
It was formed as a trilateral maritime security grouping between India, Sri Lanka and Maldives operating in the Indian Ocean region. It focuses on Maritime security, Countering terrorism and Cybersecurity. In 2020, Mauritius was added as a member of the grouping, with Bangladesh and the Seych
2 women navy officers trained to undertake the first women solo-circumnavigation as part of the Navy’s ‘Sagar Parikrama’. The Golden Globe Race (GGR) is a solo sailing race around the globe in a yacht. It started off on 2018, to celebrate the 50th anniversary of the Sunday T
Agartala-Akhaura Rail Link (International relaton) A new rail link connecting Northeast India with Bangladesh for a distance of 12.24 kms was inaugurated recently. The project is part of India’s “Act East Policy”, which aims to promote economic cooperation and de
Recently, the Reserve Bank of India (RBI) announced that it would directly regulate entities facilitating cross border payment transactions. Payment Aggregators – Entities that enable e-commerce sites and merchants to accept various instruments from customers to complete their payme
The National Aeronautics and Space Administration’s (NASA) Lucy spacecraft is on an epic 6-billion-kilometre-long journey to study the Jupiter Trojan asteroids. Discovery - It was discovered in 1999 by the LINEAR survey, and recently identified as a potential fly-by target for
Economic Survey 2023-24 acknowledged the concept of reverse flipping and this trend has been gaining attention in the recent years. What is reverse flipping? Flipping- The process of transferring the entire ownership of an Indian company to an overseas entity, accompanied by a
Interconnected Disaster Risk Report 2023, released by the academic arm of United Nations, reveals that 21 of the 37 world’s aquifers are depleting faster than they can be replenished. Interconnected Disaster Risk Report Launch year-
Bangladesh PM Sheikh Hasina’s daughter, Saima Wazed, was nominated as the next Regional Director for the World Health Organization’s South-East Asia region recently. The nomination will be submitted to the WHO Executive Board during its 154th session, which is scheduled to
It was a 100 million megaton blast that occurred 66 million years ago. It was caused by an asteroid or comet that crashed into Earth off the coast of Mexico. The impact generated a core of superheated plasma that was over 10,000 degrees, wiped out 75% of all species on Earth, created a 2-y
The explosion of a star, a supernova recorded in the year 1,054 AD led to the creation of the Crab Nebula, a supernova remnant. Now, the James Webb Space Telescope has looked at the nebula that is located 65,000 light-years away in the constellation Taurus, revealing exquisite new details.
Quality Council of India (QCI) in collaboration with the United Nations Forum on Sustainability Standards (UNFSS) hosted the ICSTS in New Delhi recently. Sustainability Standards are special rules that guarantee the products you buy do not hurt the environment and the people that make them.
Indian Air Force recently inducted 153 women Agniveervayu into its non-officer cadre for the 1st time. Agniveervayu (Women) is a group of female soldiers in the Indian Air Force (IAF). Agniveers are cadets appointed to the Army wings under the Agnipath scheme, a short-term serv
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