Analysis of the Relationship between Changes in Meteorological Conditions and the Variation in Summer Ozone Levels over the Central Kanto Area

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td align="left"></td><td align="center">Periods</td><td align="center">Observation</td><td align="center">Statistical regression equation</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td align="left" rowspan="3">Averaged daily maximum concentrations (ppb)</td><td align="center">1980s</td><td align="center">41.0</td><td align="center">41.5</td></tr><tr><td align="center">1990s</td><td align="center">51.8</td><td align="center">52.3</td></tr><tr><td align="center">2000s</td><td align="center">61.8</td><td align="center">60.6</td></tr><tr><td align="center" colspan="4"><hr/></td></tr><tr><td align="left" rowspan="2">Difference between periods (ppb)</td><td align="center">1990s–1980s</td><td align="center">10.7</td><td align="center">10.7</td></tr><tr><td align="center">2000s–1990s</td><td align="center">10.0</td><td align="center">8.4</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

The observed and predicted (by the statistical regression equation) seasonally averaged daily maximum O<sub>3</sub> concentrations in the Tokyo area.

Advances in Meteorology

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Table 4

Table 4: Analysis of the Relationship between Changes in Meteorological Conditions and the Variation in Summer Ozone Levels over the Central Kanto Area 

Table 4 | Analysis of the Relationship between Changes in Meteorological Conditions and the Variation in Summer Ozone Levels over the Central Kanto Area 