On Thursday, 5 June 2025, lecturers Aree Jongjaroenarasuk and Anusorn Bunsong, members of the Environmental and Green Office Implementation Committee responsible for Category 4: Waste Management, monitored, supervised, advised, and educated housekeeping staff in the Administration Building at Sirindhorn College of Public Health, Ubon Ratchathani. They covered sorting and weighing general waste, recyclables, and food waste, with daily weighing and recording of quantities. The work aimed to reduce environmental impacts and waste sent for disposal, promote efficient resource use, and encourage environmentally responsible behavior throughout the college in line with Green Office policy.