Introduction

Indoor air pollution remains largely unmonitored and unregulated in India despite high exposure levels. Pollutants from construction dust, household fuels, cleaning agents, and aromatic disinfectants accumulate indoors and degrade air quality. Recognising this, researchers from BITS Pilani have developed India’s first IAQ scale (Indoor Air Quality scale), capable of measuring multiple indoor pollutants and providing a health-based score for residential and commercial buildings.

Their findings published in the Royal Society of Chemistry Journal establish benzene as the most dangerous indoor pollutant and call for inclusion of IAQ standards in building codes and smart city frameworks.

Why in the News?

This is the first India-specific scientific model for assessing indoor air pollution beyond the conventional AQI framework.

1. First-of-its-kind IAQ Scale: Developed by BITS Pilani researchers, enabling precise measurement of multiple indoor pollutants.
2. Major Data Insight: Indoor air can be two to five times more polluted than outdoor air.
3. Policy Gap: There are no formal regulations or monitoring frameworks for indoor air quality in India.
4. Health Implications: The study links poor IAQ to headaches, fatigue, respiratory diseases, and cardiovascular risks, especially in women and infants.
5. Call to Action: The research advocates IAQ standards in building codes and smart city designs, a potential policy game changer.

Understanding the New Indoor Air Quality (IAQ) Scale

1. Comprehensive Measurement: Unlike air purifiers, which track only particulate matter and humidity, the IAQ scale captures a wider range of pollutants including PM2.5, PM10, CO, benzene, and volatile organic compounds (VOCs).
2. Pan-India Modelling: The model integrates Indian demographic data, age groups, geography, income, and housing patterns, to derive a weighted IAQ score.
3. Weighted Parameters: Exposure time (25.9%), ventilation efficiency (9.8%), and enclosure size (4.4%) form key components of the health-based index.
4. Scoring System: IAQ scores range from 22 (severe pollution) to 100 (healthy indoor air).

Health Implications of Poor Indoor Air Quality

1. Sick Building Syndrome: Poor IAQ triggers headaches, fatigue, and irritation, often observed in modern buildings with poor ventilation.
2. Chronic Diseases: Prolonged exposure causes asthma, COPD, bronchial allergies, and cardiovascular disorders.
3. High-Risk Groups: Women and infants face higher vulnerability due to longer indoor exposure and cooking-related emissions.
4. Toxic Emissions: Indoor combustion from fuels, incense, and construction residues increases carbon monoxide and benzene concentration.

Major Pollutants of Concern

• Benzene:

1. 1. Most dangerous indoor pollutant identified in the study.
   2. Emitted by aromatic disinfectants, fuels, and solvents.
   3. Long-term exposure is linked to leukaemia, anaemia, and cancer.
   4. Recognised carcinogen by the World Health Organisation (WHO).

• Carbon Monoxide (CO):

1. 1. Generated from gas stoves, oil-burning furnaces, and charcoal grills.
   2. Causes poisoning and oxygen deprivation.
   3. Accumulates in poorly ventilated rooms, leading to long-term toxicity.

Unexpected Sources and Indoor Traps

1. Aromatic Disinfectants: Release benzene and toxic VOCs during use.
2. Incomplete Combustion: Burning incense sticks in closed rooms emits carbon monoxide.
3. Organic Waste Decay: Produces methane and foul-smelling gases; methane is 80 times more potent than carbon dioxide over 20 years.
4. Poor Waste Segregation: Creates landfill-like conditions indoors, compounding toxicity.

Simple Household Interventions for Cleaner Indoor Air

1. Enhanced Ventilation: Open windows during low-pollution hours and use exhaust fans while cooking.
2. Segregation of Waste: Keep dry and wet waste separate to prevent methane buildup.
3. Regulated Burning: Reduce incense burning and switch to non-toxic cleaning products.
4. Natural Fresheners: Avoid synthetic air fresheners; use herbal or essential oil-based alternatives.
5. Lifestyle Measures: Routine cleaning, minimal use of chemical cleaners, and proper ventilation improve long-term air quality.

Conclusion

Indoor air pollution, though invisible, represents one of the most persistent and under-addressed public health risks in India. The IAQ scale developed by BITS Pilani researchers provides a data-backed pathway to integrate indoor air monitoring into policy, urban design, and smart city missions. Addressing this silent crisis through ventilation norms, IAQ regulations, and public awareness will mark a major leap toward holistic environmental governance and citizen well-being.

PYQ Relevance

[UPSC 2021] Describe the key points of the revised Global Air Quality Guidelines (AQGs) recently released by the World Health Organisation (WHO). How are these different from its last update in 2005? What changes in India’s National Clean Air Programme are required to achieve these revised standards?

Linkage: The WHO’s revised AQGs (2021) set stricter limits for PM 2.5 and NO2, highlighting the need for India’s NCAP to adopt health-based indoor and outdoor air quality standards, aligning with the emerging Indoor Air Quality (IAQ) scale developed by BITS Pilani.

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Introduction

The Union Ministry of Tribal Affairs has drafted a new policy framework titled “Reconciling Conservation and Community Rights” to ensure that any relocation from tiger reserves aligns with the Forest Rights Act, 2006 (FRA) and ensures community consent, accountability, and post-relocation monitoring. This follows increasing complaints from Scheduled Tribes that relocations are being conducted without proper consent, despite the FRA granting them rights to reside within traditional habitats.

What is the significance of the new policy framework?

1. Institutional reform: The framework proposes a National Framework for Community-Centric Conservation and Relocation involving both the Environment and Tribal Affairs Ministries.
2. Integration of agencies: Suggests joint procedural standards, timelines, and accountability mechanisms across ministries.
3. Centralized database: Recommends creation of a National Database on Conservation-Community Interface (NDCCI) to record data on relocations, compensation, and post-relocation outcomes.
4. Independent audits: Mandates annual independent audits by empanelled agencies to ensure FRA compliance and voluntary consent in relocation projects.

Why was this policy needed now?

1. Implementation gaps: Multiple representations from States and tribal groups highlighted “serious concerns” about non-implementation of FRA in tiger reserves.
2. Violation of rights: Tribes alleged coercion into relocation despite the FRA allowing habitation within reserves.
3. Poor monitoring: The Ministry noted lack of data and follow-up on families relocated from reserves since 2007.
4. Scale of issue: Over 1,566 villages have been relocated from tiger reserves since 2007, affecting 55,000 families; another 94,000 families remain within reserve areas.

What safeguards does the framework propose?

1. Voluntary relocation: Relocation only if consent is obtained at both Gram Sabha and household levels.
2. Right to reside: Reaffirms that forest-dwelling communities cannot be relocated without exercising FRA rights to remain in traditional habitats.
3. Scientific validation: Any relocation must be justified through demonstrable ecological necessity.
4. Ethical relocation: Proposes “voluntary, scientifically justified, and dignity-based” resettlement, monitored by the NDCCI and independent auditors.

How does the framework address inter-ministerial coordination?

1. Collaborative approach: Establishes a joint mechanism between the Ministry of Environment, Forest and Climate Change (MoEFCC) and Ministry of Tribal Affairs (MoTA) for approval, execution, and evaluation of relocations.
2. Defined accountability: Ensures that both ministries share equal responsibility in monitoring and redressal of rights violations.
3. State participation: State governments to designate nodal officers to ensure compliance with FRA provisions before any relocation.

What challenges remain on the ground?

1. Administrative inertia: State agencies often bypass FRA provisions, citing wildlife protection laws.
2. Inadequate consultation: Many Gram Sabhas report incomplete or manipulated consent processes.
3. Livelihood uncertainty: Compensation often delayed or inadequate, leading to impoverishment post-relocation.
4. Social dislocation: Tribes such as the Jenu Kuruba in Karnataka allege forced displacement without restoration of ancestral land rights.

How does this align with India’s conservation policy?

1. Balancing dual goals: The framework emphasizes that tiger conservation and tribal rights are not mutually exclusive.
2. Legal synchronization: Seeks to harmonize FRA (2006) with Wildlife Protection Act (1972) and National Tiger Conservation Authority (NTCA) directives.
3. Ethical conservation: Shifts focus from coercive protectionism to participatory conservation involving local communities.

Conclusion

The proposed framework is a crucial step toward redefining India’s conservation ethics by embedding human rights into environmental protection. Its success will depend on genuine participation of tribal communities, transparent auditing, and strict accountability from both central and state authorities. Only then can India achieve inclusive conservation that respects both its people and its tigers.

PYQ Relevance

[UPSC 2025] Does tribal development in India centre around two axes, those of displacement and of rehabilitation? Give your opinion.

Linkage: It directly aligns with the issue of forest tribe relocation, where development often entails displacement for conservation followed by inadequate rehabilitation efforts. This highlights the need for a rights-based, consent-driven framework ensuring dignity and livelihood security for displaced tribal communities.

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