Air Quality Monitoring in Kelham Island (Sheffield City Council started air quality monitoring of nitrogen dioxide in Kelham Island in January 2006)

Kelham Island Adjusted Annual Averages data (for an explanation of correction, or bias adjustment factors, please visit the DEFRA website).

2016 data

2015 data

2014 data

2013 data

2012 data

2011 data

2010 data

2009 data

2008 data

2007 data

2006 data

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