AIR POLLUTION OF CARBON MONOXIDE: A CASE STUDY ON CITY TRAFFIC JAMDEVI ANGELIANA KUSUMANINGTIAR, GISELY VIONALITA AND SEPTIAN ARDIANSYAHAbstract Data of Environmental Agency states that the highest CO concentration is in Bundaran HI Jakarta. In 2015, CO concentration was572.760 μg/Nm3, while in 2016, CO concentration was 798.690 μg/Nm3. This research aims at identifying the differences of carbon monoxide concentration in Bundaran HI based on time. It used cross-sectional design with anova test as statistical analysis. This research was conducted onApril â June 2017. The results of univariate analysis found that vehicles passing Bundaran HI in the morning at the average was 2364 units, in the afternoon 1793 units and in the evening 2806 units with the mean level of carbon monoxide in the morning was 32217.5 μg/Nm3, in the afternoon 30072 μg/Nm3 an in the evening 33770,5 μg/Nm3. The results of bivariate analysis using ANOVA test show that there were differences in carbon monoxide (CO) concentration in Bundaran HI (Sudirman) based on sample collection time wherep < 0.05. It can be concluded that CO concentration in Bundaran HI (Sudirman) is high and it is suggested that people should use the public transportation, the government should provide counseling and promoting health, using the standard euro 4, and revitalization of the vehicle over 20 years. |