The state governments Department of the Environment and Heritage Protection are concerned about air pollution levels in Brisbane city. You have been provided with data for two sites, the Brisbane CBD and South Brisbane, for 2010 and 2016 in the following four files given below in the links:

1. brisbanecbd-aq-2010.csv

2. brisbanecbd-aq-2016.csv

3. southbrisbane-aq-2010.csv

4. southbrisbane-aq-2016csv

You have been asked to advise the Government:

A. If air pollution is related across the two sites, and if so, has this relationship changed between 2010 and 2016

B. Has the level of air pollution at either site changed from 2010 to 2016? Have these changes across the two sites been consistent?

You have been advised to focus on the PM10 data series and you should therefore draw on the unit content concerning summary statistics and correlation to answer this question. (Provide a MATLAB code and visualisations to justify your response.)

LINK TO CSV FILES:

1. https://www.dropbox.com/s/dncqt3n8eozou0u/brisbanecbd-aq-2010.csv?dl=0

2. https://www.dropbox.com/s/jilc22pwcd3jag2/brisbanecbd-aq-2016.csv?dl=0

3. https://www.dropbox.com/s/29p7rl5ia61er1f/southbrisbane-aq-2010.csv?dl=0

4. https://www.dropbox.com/s/j0wdim6m4zo005e/southbrisbane-aq-2016.csv?dl=0