Model Answer

Introduction

The development of a customised Indoor Air Quality (IAQ) scale by researchers at BITS Pilani Hyderabad reflects India's growing use of science and technology to tackle emerging environmental health challenges. While outdoor air pollution has received significant attention, indoor air—often two to five times more polluted—remains largely neglected. The new IAQ scale provides a scientific, data-driven tool to assess and manage indoor air pollutants in Indian homes.

Body

The IAQ scale quantifies major pollutants such as PM2.5, PM10, carbon monoxide, and volatile organic compounds (VOCs) like benzene, which pose serious health risks. It assigns weighted importance to factors like pollution concentration, exposure time, ventilation efficiency, and enclosure size—capturing both the intensity and duration of exposure.

This innovation integrates environmental science with data analytics and machine learning, creating a context-specific metric for Indian households. It translates complex data into an easily understandable index, empowering individuals and policymakers to take preventive action.

The scale's development also highlights the role of indigenous research in environmental governance. It enables evidence-based interventions such as improving ventilation, reducing incense burning, promoting cleaner fuels, and designing healthier indoor spaces. Furthermore, it can guide public health campaigns and building regulations focused on “healthy housing.”

Conclusion/Way Forward

The IAQ scale signifies how science and technology are evolving from mere observation tools to instruments of active environmental management. By bridging research, public awareness, and policy implementation, it reinforces the idea that sustainable development and human health can be achieved through indigenous, technology-driven solutions tailored to local needs.