The increased activities in hospitals will increase the infectious waste generation. The infectious waste contains pathogenic organisms that can spread disease to humans and the environment. The harmful impact of infectious waste can be minimized through proper waste management, starting from waste generation. This study aims to examine the problem of infectious waste generation: the overall percentage of infectious waste generation in hospitals, the amount of infectious waste generation from each source (processing unit), and analyze factors that significantly affected its generation. This study is expected to be the basis of recommendations for hospitals in handling infectious waste. The study was conducted in four public hospitals in Bandung and Cimahi City. The data consists of infectious waste generation, non-infectious waste (general waste) generation, and hospital data as data factors analyzed for its influence on waste generation. The stepwise regression method was used for factor analysis with 95% CI. The result showed that infectious waste generation had a lower percentage than non-infectious waste, ranging from 38–47%. The treatment rooms that produce the most considerable infectious waste are haemodialysis, operating rooms and inpatients with an average infectious waste generation of 0,08–2,18 kg/patient/day. Thus, the three rooms can become a priority for infectious waste management. Factors that significantly affect the generation of infectious waste are dominated by patients and medical personnel. The importance of this factor is related to waste sorting activities. Therefore, special control by hospital management is needed for these two factors. Keywords: hospital, generation, infectious waste, treatment room, factors   ABSTRAK Peningkatan aktivitas rumah sakit akan diikuti dengan peningkatan timbulan limbah infeksius. Limbah infeksius mengandung organisme patogen yang dapat menyebarkan penyakit bagi manusia dan lingkungan. Dampak limbah infeksius dapat diminimalisir melalui kegiatan pengelolaan limbah yang tepat, dimulai dari timbulan limbah. Penelitian ini bertujuan mengkaji secara mendalam hal seputar timbulan limbah infeksius, dimulai dari persentase timbulan limbah infeksius rumah sakit secara keseluruhan, besaran timbulan limbah infeksius dari setiap sumber (unit perawatan) serta analisa terhadap faktor yang memiliki pengaruh signifikan terhadap timbulan limbah. Kajian ini diharapkan dapat menjadi dasar rekomendasi untuk pengelolaan limbah infeksius rumah sakit. Penelitian dilakukan di empat rumah sakit umum area Kota Bandung dan Cimahi. Data penelitian terdiri atas timbulan limbah infeksius dan non-infeksius (limbah umum) serta data atribut rumah sakit sebagai data faktor yang dianalisis pengaruhnya terhadap timbulan limbah. Analisis faktor menggunakan metode stepwise regression dengan signifikansi 0,05 (95% CI). Hasil penelitian menunjukkan limbah infeksius memiliki persentase timbulan yang lebih kecil dibandingkan limbah non-infeksius (limbah umum) yaitu kisaran 38–47%. Unit perawatan yang menjadi penghasil limbah infeksius terbesar berasal dari unit haemodialisa, kamar operasi serta rawat inap dengan kisaran rata-rata besaran timbulan limbah infeksius sebesar 0,08–2,18 kg/pasien/hari. Dengan demikian, ketiga unit perawatan tersebut dapat menjadi prioritas pengelolaan limbah infeksius. Adapun faktor yang berpengaruh signifikan terhadap timbulan limbah infeksius didominasi oleh faktor jumlah pasien dan jumlah staf medis. Signifikan faktor ini berkaitan dengan kegiatan pemilahan limbah sehingga perlu pengendalian khusus poleh pihak rumah sakit terhadap kedua faktor tersebut. Kata kunci: rumah sakit, timbulan, limbah infeksius, unit perawatan, faktor

Salinity, electrical conductivity (EC), and Total Dissolved Solid (TDS) are parameters that pose an important role in the distributions of environmental pollution substances in the estuary. The difference in salinity, EC, and TDS concentration vertically (based on the depth in the water column) and horizontally (based on the distance from the estuary mouth) will affect the process of pollutant’s transportation and transformation in the estuary. On the other hand, seasonal variations will also affect parameters. Therefore, the information related to the vertical and horizontal profiles of salinity and other parameters based on seasonal variations is necessary to study. The purpose of this study is to analyze the vertical profile and horizontal-vertical of salinity, EC, and TDS concentrations during the rainy season and dry season in the estuary of Citarum River. This research was conducted in April 2018 (rainy season) and August 2018 (dry season) when the low tide. The measurement of salinity, EC, and TDS was directly conducted in the field using a conductivity meter. The results show that the concentration level of salinity, EC, and TDS showed a vertical and horizontal difference in the estuary of the Citarum River. In addition, there are differences in the concentration of salinity, electrical conductivity, TDS in the rainy season and dry season in the estuary of the Citarum River. The level of TDS has a linear relationship between salinity and electrical conductivity, with a value of R2 >95%.