Is the air quality in Beijing really bad?

There is basically no yellow sand. The yellow sand you said should be a few years ago. There is basically no sandstorm now, but there is still smog. However, compared with before, pm2. 5 has dropped a lot. A few years ago, the smog reached more than 500 at its worst. Now it has been reduced a lot, up to 200 to 300, and the number of haze days has also been greatly reduced.

The worst time should be 14 ~ 16. I clearly remember that for several months in a row, the sky was gray-yellow, and the sun was blocked by the misty fog and turned yellow, and the sunshine was too weak to look straight. The smog for several months has made the sky gloomy and people feel depressed. But now the smog situation is getting better every year. I feel that pm2.5 has dropped a lot and the number of days with good weather is increasing. It can often be as low as a dozen, and I can often see the bright blue sky, as pure as Sanya in Hainan. The air is the best in autumn, and it can keep good continuously.

As for you saying that the air quality in Hangzhou is good, I went to Hangzhou on June 20 1 19, and the air was not very good in those two days. This is a combination of cloudy days and smog. The taxi driver told me that the smog was blowing from Beijing. I asked him that the electricity consumption in Hangzhou is increasing year by year, and there is no thermal power plant.

A large part of the oil and coal consumed in China every year is burned by thermal power plants and automobiles. Thermal power accounts for 60% of the total electricity consumption. The environmental protection standards of a large number of automobiles, coal and petroleum are already relatively high, and it is difficult for automobiles and thermal power plants to continue to reduce emissions. With the growth of national GDP, the power generation will also increase. Only by using other methods to generate electricity, driving cars that don't burn oil and reducing coal and fuel can smog be reduced.