4th July 2024 (10 Topics)

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PM 2.5 Pollution

Context

The Lancet study reveals a serious link between air pollution and deaths in Indian cities like Delhi. Pollution particles like sulfur dioxide and nitrogen dioxide can cause respiratory issues like coughing and chest tightness.

Key-highlights of the Study

Between 2008 and 2019, 7.2% of all deaths (approximately 33,000 each year) in 10 cities in India every year can be attributed to air pollution levels that are below India's national clean air threshold.
- Delhi recorded the highest number of air pollution-related deaths in the study period - a staggering 11.5% i.e. 12,000 deaths each year.
India's clean air norms are presently well above the World Health Organisation guideline of 15 micrograms in every cubic meter of air.

Fact Box: What is PM 2.5?

PM 2.5 are tiny particles smaller than 2.5 microns, much smaller than a human hair. They're a mix of various chemicals and can be partly liquid, unlike solid dust particles. When these particles are mainly liquid, they're called aerosols.
- Natural kinds of aerosols include dust, sea salt and volcanic ash
- Man-made sources include factory and auto emissions, coal combustion and biomass burning for clearing land or farming.
PM 2.5 particles are especially harmful as they can bypass our body's defenses like nose hairs and mucus. They can penetrate deep into our lungs, reach the alveoli, and even enter the bloodstream, posing serious health risks.

Anusandhan National Research Foundation (ANRF)

Polity & Governance Governance

Decline of Poverty in India: NCAER

Economy Money and Banking

Smart Cities Mission

Economy Infrastructure

The Santhal Hul of 1855

History Modern History

Pantanal

Geography Locations in News

Mumbai-Ahmedabad Bullet Train Project

Economy Infrastructure

Does India need a new poverty line?

Polity & Governance Governance

Trials, Medical Ethics, and the Orbit of Power

Ethics Miscellaneous

Factory Accidents, a Pointer to Rusty Inspection Reform

Polity & Governance Governance

GS Analyst: Daily Current Affairs

PM 2.5 Pollution

Key-highlights of the Study

Fact Box: What is PM 2.5?

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