This study aims to analyze language errors found in public media such as banners, posters, and billboards in Medan City. The errors analyzed include morphological, phonological, syntactic, lexical, and spelling mistakes that do not align with the Indonesian Language Spelling System (PUEBI) and the Indonesian Dictionary (KBBI). The method used is qualitative descriptive, with data collection through direct observation of public media in various locations in Medan City. The results show that language errors are generally caused by a lack of understanding of correct language rules, limited knowledge, and the use of everyday language mixed with colloquial or regional languages. The proposed solutions to address these issues are providing training for media creators, creating clearer language guidelines, and utilizing language technology for automatic spelling checks. The implications of this study are to raise public awareness about the importance of using proper and accurate Indonesian in public media, to support effective communication, and to avoid miscommunication.

This research aims to analyze the awareness of Medan State University and Medan Area University (UMA) students as citizens in understanding social rights and responsibilities regarding the use of dangerous chemicals in cigarettes. The background to this research is based on the increasing consumption of cigarettes among students and its impact on health and the environment. The method used in this research is a qualitative approach with data collection techniques through interviews and observation. Interviews were conducted with students from various departments at both universities to explore their knowledge and attitudes regarding chemicals in cigarettes. Apart from that, observations were carried out in the campus environment to see cigarette consumption behavior among students. The research results show that students' awareness of their rights to obtain accurate information about the dangers of smoking and their social responsibility to educate their friends is still low. Therefore, more effective educational programs are needed to increase students' understanding of this issue and encourage proactive action in protecting themselves and the environment from the negative impacts of smoking.