UNY students do many activities to maintain the waters, one of which initiates Gerakan Pengoptimalan Sungai (GPS) activities in Semoyan village of Yogyakarta. GPS increases people's knowledge and awareness about the importance of maintaining the cleanliness of the river environment and local fish care. Youths put up banners regarding the ban on polluting rivers in some locations.

Air pollution is a problem for many countries in the world, massive cities. This air pollution causes poor ambient air quality and can be harmful to human health and the environment. Even some areas with high traffic density indicate that the pollutant has exceeded the threshold.