<![CDATA[In the new global economy, air pollution has become a central issue for Indonesia, especially in Jakarta and other major cities such as Surabaya. Air pollution in Indonesia not only causes serious health impacts on the population but also can lead to respiratory diseases, cardiovascular diseases, lung cancer, and respiratory tract infections. Several types of bacteria that can spread through the air include Staphylococcus, Streptococcus, Micrococcus, Pseudomonas, and type Sp1 bacteria. Initial studies conducted by researchers have found that until now, the kitchen space at the Rumah Sakit TNI AU Soemitro Lanud Muljono (RSAU) Surabaya has only been inspected for food, beverages, and rectal swabs. The specific aim of this study is to count the number of bacterial colonies in the hospital kitchen installation and to identify the types of bacteria present in the hospital kitchen installation. This type of research is quantitative analytic observational research with a cross-sectional approach. The population in the study is the air bacteria in the kitchen of Rumah Sakit TNI AU Soemitro Lanud Muljono (RSAU) Surabaya. Samples were taken 4 times during kitchen activities, and the sample size was 24 samples taken over 6 days referring to Kepmenkes 1335/menkes/x/2002. The results of the study found that the average number of bacterial colonies was 55.75 CFU/m3, which still meets the requirements set by Kepmenkes RI Number 1204/Menkes/SK/X/2004. The types of bacteria identified were gram-negative bacill and gram-negative coccus.]]>
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