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Within the table, each year is a link to a file containing one year of
data for the pollutant at the head of the column. Data is presented as hourly
averages for all pollutants.
To view a data file, click on the link. To
download a file hold down the Shift key, then click on the
link.
| London, Westminster | |||||
|---|---|---|---|---|---|
| Ozone | Nitrogen Dioxide | Nitric Oxide | Oxides of Nitrogen | Carbon Monoxide | Sulphur Dioxide |
| 2002 | 2002 | 2002 | 2002 | 2002 | 2002 | 2001 | 2001 | 2001 | 2001 | 2001 | 2001 |