Has the air cleaner in the world because of the pandemic SARS-CoV-2?
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The Pandemic of SARS-CoV-2 has an impact on every aspect of a once familiar life. At the time of this writing, the disease has claimed the lives of more than 40 thousand people, and the number of infected close to a million. Social distancing, which allows to contain the spread of the virus has led to a world economy that faces serious challenges that have yet to face. However, in addition to stopping industrial production, pandemic CoVID-19 resulted in a significant purification of the air in many cities around the world. Carefully observing satellite data on the emissions of harmful substances, scientists have recorded the reaction of the planet to the pandemic – for a while the air became cleaner. But should we rejoice?
does CoVID-19 planet?
Pandemic gives scientists some idea about what's going on with the atmosphere at the time, as our way of life and the economy are undergoing major changes. As told to Helen worden of the National center for atmospheric research (towards it), it is unwanted atmospheric experiment, as the return to normal life can be very hard to increase .
According to available data, emissions from China decreased for several weeks after Chinese New year, when the country suffered greatly from the new coronavirus. During an epidemic of decreased coal consumption has slowed oil refining, and flights were cancelled to reduce the spread CoVID-19. Based on industry information, the researchers calculated that within four weeks after Chinese New year, carbon dioxide emissions declined by about a quarter. The results are published . Meanwhile, satellite images from NASA shows that over China nitrogen dioxide decreased on average by 36%.
the image shows changes in the level of air pollution over China from January to February
In a report published , it is also stated that after the Chinese New year the content of nitrogen dioxide dropped to 70% below levels recorded in the same period of 2019. The level of carbon monoxide – the polluting substances, which in high concentrations decreases the amount of oxygen entering the blood flow decreased by 30-45% compared to last year. However, scientists believe that in order to confidently assert that this decline is due to the pandemic, more research is needed.
The time for accelerated , with the industry of other countries the same thing happens that happened in China to reduce consumption of fossil fuels and the subsequent reduction of emissions. The analysis showed that emissions of nitrogen dioxide over Italy are reduced. But researchers note that the drop in the level of contamination in Europe is not as dramatic as in China, but still significantly. So, electricity consumption in Italy decreased by approximately 20%, and in Spain and France about 10%. And during the first day of exclusion in India monitoring stations of air pollution had the lowest rates of nitrogen dioxide in the history.
in Red in the picture is highlighted the level of air pollution in France since 1 to March 25, 2020
will the air cleaner on the planet?
It is Important to understand that the current drop in the level of air pollution is temporary. However, in the future the amount of harmful emissions into the atmosphere will still have to reduce the problems caused by climate change has not been canceled. As the authors of an article in Popular Science, economic downturns generally lead to short term emissions reductions. So, during the great recession of 2008 and 2009, carbon dioxide emissions decreased compared with the previous 2006 – 2007. But it was enough to overcome the crisis, as the number of emissions has increased again.
Anyway, I want to believe that the air that has become a little clearer, we begin to appreciate more than fossil fuels and disposable plastic products. Recall that air pollution annually . Moreover, air pollution contributes to the development of heavy States in infected with the novel coronavirus. Anyway, when the pandemic is over, we will have to make some important decisions, which will determine the future of humanity. Are we going to support industries that pollute the air or support those that have a future?
So the satellites can see the planet
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