On November 30, the United States Space Agency a new generation of polar-orbiting satellites of the "visible infrared imaging radiometer" shoot the image is clear, shrouded in smog over China area to the southwest of mainland extends hundreds of kilometers away from Beijing, in the Guanzhong plain and other low-lying areas especially serious. Figure for Beijing's recent sustained severe haze.
According to Xinhua Beijing on December 23, China has shown a more frequent smog, in terms of scope, duration and concentration of particles more "aggressive". United States and the United Kingdom and other developed countries have seen severe smog, and haze experience. For China's "haze disease", has the certain reference value of their analyses and recommendations.
"Palpation", see a doctor first to "see" clearly. United States on a new generation of polar-orbiting satellites of the "visible infrared imaging radiometer", is insight into the atmosphere of the "eye in the sky". United States Space Agency, has issued an image of this instrument on November 30, demonstrates the State of the atmosphere over China.
Day in Beijing are suffering severe smog, PM2.5 concentrations up to 666 micrograms per cubic metre. Satellite image shows, wrapped in a haze over China extends hundreds of kilometers from Beijing to the Southwest, in the Guanzhong plain and some low-lying areas are particularly serious.
United States Space Agency noted that smog constituents are sulfate aerosols, coal was to blame.
However, the weather conditions also played a "accomplices". Smog is usually more in the winter, from a meteorological perspective, because of the "inversion layer" more often this season. Typically, temperature decreases with height in the lower atmosphere. But sometimes the opposite situation arises, the temperature increases with height, this phenomenon is called the inversion layer in the atmosphere.
Inversion layer like a lid, lower cold pressed cover, near the Earth's surface is hard to spread of pollutants, especially in basins and valleys.
China's national climate Center's analysis also confirms this: since November, the Jing-Jin-JI area less wind, low wind speed, weather we are having static stability, meteorological factors such as relative humidity, is very negative for contaminants. Officials counted 11 corruption official rules
Winter inversion of "accomplices", submitted to London suffered. In December 1952, the former "fog" outbreak of disastrous "smog", shrouded for days the inversion layer is the "last straw".
Also from "smoke" to start, United Kingdom on the road to take drastic measures to address air pollution. Among them, one of the most important measures is to reduce the use of coal.
On Friday, United Kingdom last deep coal mine closes, once again shows the established industrial Nations to "coal economy after" determination. Reuters specially said in a lengthy statement, United Kingdom for decades to "reduce coal" history proves green transformation entirely feasible, and experience available to the current China.
Points out that, when London United Kingdom same fog occurs frequently in big cities, industrial and domestic coal and transport coal trains is an important reason. China faces similar problems today, coal's share of total energy use was too high.
Suggested that "the reduction of coal" step by step. For example, from distributed small coal for thermal power plant and their families, and turned to the large concentration of coal so that more practical, but also to harmonize the use of coal upgrading. Then, gradually replacing coal with clean energy.
Article said China has complete railway transport decarbonisation of economies in transition, however, to complete this transition in the economy as a whole, there is still a long way to go.
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