Dataset

My dataset consists of 30 tables with around 160 rows by 140 columns – really massive. 

First I started with a summary on the annual emissions by the Bundesumweltamt but realised, that I have massive gaps in the 90's. Then I found the original report, published by the European Environment Agency with a lot more data – including high resolution categorisation. Nevertheless I only included the pollutants mentioned in the summary and excluded all heavy metals. This was because I already had a design and a working visualization.

Data Processing

I cleaned the data using jupyter notebooks and prepared a lot of different tables for the final web application – for instance: summing up categories so the browser does not have to lift this load.

Design and Development

First I tried to fit my visualization project with force to the topic of the course, but failed. My data was not really suited for a network viz. 

I tried different pictorial solutions but they all lacked clarity and the possibility to really explore this dataset.

In the end I reiterated many many times between development and going back to the drawing board trying out new stuff.

Here are some failed design examples:

Result

In the end I am quite satisfied with the result. As I mentioned it does not really fit the course topic but for the real first steps on data viz ground I am quit pleased.

This semester ignited my interest in data visualizations and I am curios what will come in the future.

github source

demo