Emission Impossible Ltd

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Auckland’s Air Quality 2006-2018

Auckland Council has published a report on long-term trends in Auckland’s air quality for the years 2006 – 2018.

The good news is that in most locations, both short-term and long-term PM10 and PM2.5 concentrations have decreased (Figure 1).

Similarly, nitrogen dioxide (NO2) shows marked decreases in concentration over the long-term. However, short-term trends in NO2 are starting to show increases in concentration at several sites near major roads.

Full report here.

 

 

 

 

 

 

 

 

 

 

Figure 1     Theil-sen deseasonalised trends for PM10 at Takapuna (2006-2018)