Latar belakang: Industri banyak menghasilkan sampah sehingga dapat meningkatkan polusi, salah satunya pada air. Tujuan dituliskannya penelitian ini adalah untuk mengetahui ketaatan PT INKA (Persero) terhadap aturan hukum yang berlaku, yaitu Peraturan Gubernur Jawa Timur Nomor 52 Tahun 2014 pada periode pengukuran 2015 hingga 2019.Metode: Penelitian ini menggunakan desain cross-sectional dengan analisis menggunakan data sekunder hasil pemantauan kualitas air limbah domestik. Pengujian sampel air limbah domestic dilakukan oleh pihak ketiga yang telah dipercaya oleh PT INKA (Persero) dan sesuai aturan hukum.Hasil: Seluruh pengukuran pada 2015 hingga 2019 disebutkan bahwa seluruh hasil pengukuran parameter (pH, BOD5, TSS, serta oil and grease) telah memenuhi aturan yang berlaku yaitu Peraturan Gubernur Jawa Timur Nomor 52 Tahun 2014. Namun, pada parameter COD terdapat salah satu hasil uji yang melebihi, yaitu pada triwulan III tahun 2015. Hasilnya yaitu 99,16 mg/L, sedangkan nilai maksimal yang terdapat dalam peraturan adalah 50 mg/L.Simpulan: Mayoritas hasil pengukuran kualitas air limbah domestik PT INKA (Persero) telah mentaati peraturan yang berlaku. Namun, Penelitian selanjutnya diharapkan dapat dilakukan pengukuran kualitatif terkait cara PT INKA (Persero) dalam menjaga kualitas air limbah domestik.Kata kunci: Air limbah domestik; pemantauan berkelanjutan; aturan hukum ABSTRACT Title: Sustainable Monitoring of Domestic Wastewater at the Outlet of PT INKA (Persero) Madiun in 2015-2019Background: Industry produces a lot of waste so that it can increase pollution, for exemplify is water. The purpose of writing this research is to determine the compliance of PT INKA (Persero) with the applicable legal rules, namely the Governor of East Java Regulation Number 52 of 2014 in the sustainable measurement period 2015 to 2019.Method: This study used a cross-sectional design with analysis using secondary data from monitoring the quality of domestic wastewater. The testing of domestic wastewater samples was carried out by a third party that had been trusted by PT INKA (Persero) and was by following legal regulations. Almost all of the outlet domestic wastewater quality in the 2015-2019 period was fulfilled by following the Regulation of the Governor of East Java Number 52 of 2014.Result: All measurements from 2015 to 2019 stated that all parameter measurement results (pH, BOD5, TSS, and oil and grease) had met the applicable regulations, namely the Governor of East Java Regulation Number 52 of 2014. However, the COD parameter had one result that exceeded, namely in the third quarter of 2015. The result was 99.16 mg / L, while the maximum value contained in the regulation was 50 mg / L.Conclusion: The majority of the results of PT INKA (Persero) 's domestic wastewater quality measurement have complied with the applicable regulations. However, further research is expected to carry out qualitative measurements related to the way PT INKA (Persero) maintains the quality of domestic wastewater.Keywords: Domestic wastewater; sustainable monitoring; regulation

Introduction: WHO has announced coronavirus Disease 2019 (Covid19) as a global pandemic at the immune decline, one of which is due to chronic exposure to ambient air pollution. This literature review aims to describe the impact of ambient air pollution toward the risk of being infected by Covid19. Discussion: Covid19 can be found in a bat (host primer), and can be contagious through a person, also possible from pets. The symptoms that sufferers will perceive are fever, cough, diarrhea, myalgia, fatigue, headache, nausea, vomit, abdominal pain, loss of appetite, and some asymptomatic people. The body’s immunity affects a person’s susceptibility to Covid19 infection. The body’s immunity can be affected by ambient air pollution (with PM10, PM2,5, and O3 are the most pollutant in the air in various countries) for an extended period could be the reason for chronic illness (especially, respiratory tract) could reduce immune resistance. Furthermore, it might be happened on increasing at ACE2 activity and can cause increasing infected by Covid19. Prevention action can be done by contributing from all of the sectors at an observance in guarding, physical distancing, quarantine, and maintaining the ambient air quality in the future. Conclusion: Ambient air pollution must be considered as one effort to prevent chronic illness that can reduce immunity, which can increase the risk of being infected with Covid19. Furthermore, future studies will be carried out on ACE2 activity in people infected with Covid19 in order to get more valid results and following current conditions.