What Happened
- A study of 1,840 preschool children in Mabopane and Soshanguve townships near Tshwane, South Africa, examined the link between household air pollution and childhood health conditions.
- Researchers found that polluting household fuels (gas, paraffin, wood, coal) were associated with increased likelihood of eczema and severe asthma in children aged seven and under.
- Exposure to cigarette smoke inside homes, particularly from female caregivers, further increased eczema risk.
- About one in eight children had experienced eczema; nearly one in five had severe asthma symptoms.
- Unreliable electricity and rising energy costs force families to rely on polluting fuels, creating a health-poverty trap.
Static Topic Bridges
Household Air Pollution (HAP) and Health
Household air pollution from combustion of solid fuels (wood, coal, dung, crop residues) and kerosene is a major global health risk, particularly in low- and middle-income countries. The WHO estimates that household air pollution was responsible for approximately 3.2 million premature deaths annually as of 2020, including over 237,000 deaths of children under five from acute respiratory infections. Combustion of solid fuels releases particulate matter (PM2.5), carbon monoxide, nitrogen dioxide, and polycyclic aromatic hydrocarbons.
- WHO Guidelines for Indoor Air Quality: Household Fuel Combustion define clean fuels as solar, electricity, biogas, LPG, natural gas, and alcohol fuels
- Children are disproportionately vulnerable: their lungs are still developing, airways are narrower, and they breathe faster relative to body weight
- In poorly ventilated homes, indoor PM2.5 levels can be 100 times higher than WHO-acceptable limits
- Health impacts: Acute respiratory infections (ARI), chronic obstructive pulmonary disease (COPD), lung cancer, eczema, asthma, cardiovascular disease
- In 2021, air pollution exposure was linked to over 700,000 deaths of children under five globally
- India context: Approximately 75% of rural Indian households historically relied on solid fuels for cooking (Census 2011), though this has declined post-PMUY
Connection to this news: The South African study reinforces the established link between household fuel combustion and respiratory/dermatological disease in children, highlighting that the problem persists in energy-poor communities globally.
Pradhan Mantri Ujjwala Yojana (PMUY) — India's Response
India launched the Pradhan Mantri Ujjwala Yojana (PMUY) on May 1, 2016, to provide subsidised LPG connections to women in Below Poverty Line (BPL) households, directly addressing household air pollution from solid fuel combustion.
- PMUY Phase 1: Target of 8 crore LPG connections to BPL women (achieved September 2019)
- PMUY 2.0 (Ujjwala 2.0): Launched August 2021, target of 1 crore additional connections (achieved January 2022)
- Total beneficiaries: Over 10.33 crore PMUY connections as of July 2025
- Budget for 2025-26: Rs 12,000 crore approved by Cabinet for continued targeted subsidy
- Challenge: While connections have expanded, sustained LPG refill rates remain a concern — many beneficiaries revert to solid fuels due to refill costs
- The scheme targets SDG 7 (Affordable and Clean Energy) and SDG 3 (Good Health and Well-being)
- 44% of initial connections went to Scheduled Caste and Scheduled Tribe families
Connection to this news: While this study is from South Africa, the health impacts documented are identical to those India's PMUY seeks to address — transitioning poor households from polluting solid fuels to clean LPG to reduce respiratory disease burden, especially among women and children.
Indoor Air Pollution and Sustainable Development Goals
Indoor air pollution from household energy use sits at the intersection of multiple Sustainable Development Goals, making it a key topic for UPSC Mains essays and GS papers.
- SDG 3 (Good Health): HAP causes ~3.2 million deaths/year; children and women disproportionately affected
- SDG 7 (Clean Energy): 2.3 billion people worldwide still lack access to clean cooking fuels (IEA 2023)
- SDG 5 (Gender Equality): Women and girls bear the primary burden of fuel collection and cooking, with greater exposure to indoor pollutants
- SDG 13 (Climate Action): Incomplete combustion of solid fuels produces black carbon, a potent short-lived climate pollutant
- India's National Clean Air Programme (NCAP), launched 2019, targets 40% reduction in PM2.5 and PM10 concentrations by 2026 (revised from original 20-30% by 2024)
- The energy-poverty-health nexus: Poverty forces reliance on polluting fuels, which causes disease, which deepens poverty through healthcare costs and lost productivity
Connection to this news: The South African findings illustrate the global dimension of the energy-poverty-health nexus, demonstrating that even in middle-income countries, unreliable electricity and poverty push families toward polluting fuels with measurable health consequences for children.
Key Facts & Data
- WHO: ~3.2 million deaths annually from household air pollution (2020)
- Over 700,000 child deaths (under 5) linked to air pollution exposure in 2021
- Indoor PM2.5 in poorly ventilated homes: up to 100x WHO limits
- PMUY launched: May 1, 2016; over 10.33 crore connections as of July 2025
- Ujjwala 2.0 launched: August 2021
- 2.3 billion people globally lack access to clean cooking fuels (IEA 2023)
- Study sample: 1,840 preschool children in Gauteng province, South Africa (Jan 2022 to Mar 2023)
- One in eight children had eczema; nearly one in five had severe asthma symptoms
- NCAP target: 40% reduction in particulate concentrations by 2026