Often, organisations, laws and regulations focus more on outdoor air pollution from traffic, industrial, and agricultural pollutants, neglecting indoor pollution and its consequences. However, the International Day of Clean Air for Blue Skies recognises the relevance and profound impact that indoor air quality has on a global scale.
People spend around 80-90% of their time indoors (homes, schools, workplaces, other public spaces and on transport). The effects of poor indoor air quality on health tend to be less well understood than those due to poor outdoor air quality, as this is more complex and variable.
Around half of the estimated 7-8 million premature deaths annually around the world are caused by indoor air pollution, the main source being cooking and heating with solid fuels. Other sources are poorly ventilated heating systems, tobacco smoke, cleaning chemicals, building materials, and even outdoor pollutants that infiltrate homes and offices.
Addressing indoor air quality is as essential as addressing the outdoor quality issues to achieve the goals of this international day. The following solutions are highly beneficial to promote a healthy indoor air environment:
- Improving ventilation by making sure that HVAC systems are maintained;
- Increasing public awareness;
- Using cleaner fuels;
- Greener building designs; and
- Establishing clear policies for staff and incorporating air quality monitoring.
Ultimately, clean air is a human right, and by aligning indoor air quality initiatives with global clean air efforts, we can build healthier environments, reduce respiratory and cardiovascular diseases, and make sure that blue skies aren't just visible, but breathable everywhere.