Indoor Air Quality: The Policy Gap Governments Must Address

A recent commentary in Nature calls for governments to act now to regulate indoor air quality, warning that the world’s current air-quality strategies focus too narrowly on outdoor pollution while overlooking the environments where people spend most of their time.

The article’s central argument is both simple and compelling: protecting public health requires addressing the air people actually breathe indoors.

This conclusion deserves strong endorsement - particularly in regions such as the Gulf Cooperation Council (GCC), where climate, urban development, and building design make indoor air quality (IAQ) an even more critical public-health issue.

The Indoor Air Quality Policy Gap

Over the past two decades, governments worldwide have invested heavily in monitoring and regulating outdoor air pollution. Cities now track particulate matter, nitrogen dioxide, and other pollutants using extensive monitoring networks.

These initiatives are essential. Air pollution remains one of the largest environmental health risks globally.

However, the policy focus remains incomplete.

People spend around 90% of their time indoors, and indoor environments can contain a complex mixture of pollutants including particulate matter, volatile organic compounds (VOCs), and biological contaminants.

Despite this reality, indoor air remains far less regulated than outdoor air in most countries.

The Nature commentary highlights this gap and calls for governments to introduce stronger policies that address indoor exposure directly.

Why This Matters Even More in the GCC

The case for indoor air regulation is particularly compelling in the Middle East.

Several factors combine to make indoor air quality a critical health and infrastructure issue in the region:

1. Climate and Sealed Buildings

Extreme temperatures mean buildings across the GCC rely heavily on mechanical air-conditioning and sealed envelopes for most of the year.

While this is essential for comfort and energy efficiency, it also means indoor air is frequently recirculated for long periods, increasing the importance of effective ventilation and air cleaning.

2. Dust and Particulate Pollution

The region experiences frequent dust events and elevated particulate levels from natural and urban sources. These outdoor pollutants can infiltrate buildings and accumulate indoors if not properly managed.

3. Rapid Urban Development

Cities across Saudi Arabia, the UAE, Qatar, and Oman are undergoing rapid expansion. Construction activity, transportation emissions, and dense urban environments contribute additional sources of airborne contaminants.

4. High Indoor Occupancy

Large commercial buildings, shopping centres, offices, hotels, and healthcare facilities dominate urban life in the Gulf. These environments concentrate large numbers of people in mechanically ventilated spaces.

Taken together, these factors mean indoor air quality often determines the majority of daily pollutant exposure for residents and workers in the region.

Indoor Air and Public Health

The health implications are well established.

Exposure to indoor air pollutants has been linked to respiratory disease, cardiovascular effects, and other health impacts, particularly among vulnerable populations such as children, the elderly, and individuals with pre-existing conditions.

The World Health Organization has developed indoor air quality guidelines for several pollutants and emphasises that reducing indoor exposure is essential for protecting public health.

Yet in most jurisdictions, including many rapidly developing economies, indoor air remains largely un-monitored outside specific occupational environments - hence the indoor air quality policy gap.

Emerging Regional Leadership

Encouragingly, some Middle Eastern jurisdictions are beginning to address this gap.

For example, Dubai has introduced technical guidelines establishing limits for indoor pollutants such as particulate matter, carbon monoxide, formaldehyde, and volatile organic compounds, together with requirements for testing and certification.

These initiatives demonstrate that indoor air policy is both feasible and practical when aligned with building regulation and public-health objectives.

However, much broader regional adoption is still needed.

The Next Phase of Air Quality Policy

The message from the Nature commentary is clear: governments must move beyond a narrow focus on outdoor air.

A comprehensive air-quality strategy should include:

• Monitoring indoor air in public buildings

• Establishing health-based IAQ standards

• Integrating air-quality performance into building codes

• Encouraging technologies that reduce indoor pollutant exposure

• Supporting research on indoor environmental health

These policies would not only protect health but also improve productivity, well-being, and economic performance across workplaces, schools, hospitals, and public facilities.

Indoor Air as Public Infrastructure

The most important insight emerging from the global IAQ discussion is that indoor air should no longer be treated as a private building issue alone.

Just as governments regulate:

• drinking water

• food safety

• outdoor air pollution

they must also recognise indoor air quality as a core component of public-health infrastructure.

In regions such as the GCC - where people live, work, and socialise primarily indoors - the case for action is particularly strong.

The call from Nature is therefore timely.

Improving indoor air quality is not merely a technical issue for building engineers. It is a public health priority and a strategic policy opportunity for governments seeking healthier, more productive, and more sustainable cities.