Interventions and programs for environmental health

What are important interventions and programs for environmental health in Saudi Arabia? How are public health interventions planned and evaluated for environmental health? From Arab News (2014), Riyadh was ranked one of the most polluted cities globally according to the UN. How can air pollution in Riyadh be resolved by public health intervention? please include in text citation and use the references below  References: MOH. (2016). Environmental and occupational health general department. Retrieved from: https://www.moh.gov.sa/endepts/EnvironmentalHealth/Pages/default.aspxMilaat, W. A. (2014). Public health in the saudi health system: A search for new guardian. Saudi Journal of Medicine and Medical Sciences, 2(2), 77.Kingdom of Saudi Arabia vision 2030 (2016). Saudi vision 2030. Retrieved from: vision2030.gov.sa/download/file/fid/417Skolnik, R. (2015). Global health 101. (3rd ed.). Burlington, USA: Jones & Bartlett PublishersThe Isosceles Group. (2014). Saudi Arabia environment, health & safety profile and checklist. Retrieved from: https://nimonik.com/case_studies/audit_previews/ksa_audit_preview_health_safety_environment.pdfArab News (2014). Riyadh ranked among most polluted cities globally. Retrieved from: http://www.arabnews.com/news/538861