Air Pollution Monitoring and Control System for Subway Stations Using Environmental Sensors

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/js/volume-2016/1865614/figures/1865614.fig.0017a.svgz" name="1865614.fig.0017a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>PM<sub>10</sub> concentration</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/js/volume-2016/1865614/figures/1865614.fig.0017b.svgz" name="1865614.fig.0017b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>CO<sub>2</sub> concentration</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/js/volume-2016/1865614/figures/1865614.fig.0017c.svgz" name="1865614.fig.0017c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Temperature</td></tr><tr class="fig-image" id="d"><td><object data="https://static.hindawi.com/articles/js/volume-2016/1865614/figures/1865614.fig.0017d.svgz" name="1865614.fig.0017d" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(d) </b>Relative humidity</td></tr></table>

<div>PM<sub>10</sub>, CO<sub>2</sub>, temperature, and relative humidity in the waiting room of “Daecheong” subway station.</div>

Journal of Sensors

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Figure 17

Figure 17: Air Pollution Monitoring and Control System for Subway Stations Using Environmental Sensors 