Prince Sattam bin Abdulaziz, Acting Governor of Riyadh region and Chairman of High Committee for Environment Protection chaired the Committee's 4th meeting here on Tuesday. Eng. Abdullatif bin Abdulmalik Al Al-Sheikh, Member of High Commission for Riyadh Development and Chief of Projects and Planning Center pointed out that the meeting discussed the results prepared by the Commission on air quality in Riyadh, assessment of various effects of air pollution on human health, economic implications and ways for the control of pollution. He noted that the Committee adopted a strategy for the management of air quality in the city based on procedures and mechanisms to reduce pollution and to continuously monitor air quality.