1. The burden of COPD, WHO. https://www.who.int/respiratory/copd/burden/en/. Accessed 26th Feb 2022
2. Global Initiative for obstructive pulmonary disease report (2020). https://goldcopd.org/gold-reports/. Accessed 7th Mar 2022
3. Air pollution fact-sheets WHO. https://www.who.int/news-room/fact-sheets/detail/chronic-obstructive-pulmonary-disease-(copd)#:~:text=The%20Global%20Burden%20of%20Disease,in%20low%20and%20middleincome%20countries. Accessed 7th Mar 2022
4. Miro Tool. https://miro.com/app/board/uXjVO8Wqjtg=/. Accessed 18th Mar 2022
5. World Air Quality Report. https://www.iqair.com/world-air-quality-report. Accessed 6th Mar 2022