Pollutant Change and Geography
There are 12 stations that constitutes to this dataset: Eight of them locate in Beijing Proper and four others locate in the broad suburbs of the Beijing Municipality, forming the basis of comparison reflecting relative pollution levels in the various data collection points in the city center.
In the following series of maps, we will show the relation between different regions/stations and the respective levels of air pollutants.
One of the main reasons that the Beijing smog is so hard to remove lies in this enormous city’s topology. In this satellite map it can be seen that mountain ranges surround the north and western regions of the municipality, while plains stretch all its way to the ocean.
In the winter seasons, the cold fronts from Siberia and Baikal mountains moves southward, taking away the particles, but weaker winds are typically interfered by the mountains; the enclosure basically forms a perfect space for pollutant accumulation.
Here we illustrate the air pressure, precipitation and tempreature across the year detected by the stations, helping you to form a better view of Beijing’s climate patterns.
One noticeable point of wind’s effect to easing the smog is that, the density of PM10 could even rise as the speed of wind increases. A possible explanation lies into another air quality problem that only disturbs Beijing in April, which is the sandstorm that brings quadrillions of sand and dust from the Gobi Desert with the northern wind.