This visualization shows the types of litter we saw during 5 different days of visit to the park. The types of litter were somewhat consistent. This visualization helps us understand that even though the data is for only 5 days, there was significant amount of litter found. It must also be noted that we went there in random days and the visits were spaced apart in terms of dates and even then, on every visit we found a pretty good amount of litter to be recorded.
Interaction: Categorical color encoding is used to encode the different types of litter in the park. The legends are interactive and one can toggle the grouped bar chart by filtering the legends to filter out certain types and concentrate on others.It also provides a tooltip on hover that gives details about the data.