Beijing today’s air quality is expected to reach 5 levels of severe pollution – Sohu news yesterday, Beijing issued an orange heavy air pollution warning, public tourists wearing masks to travel. Photo China News (reporter Wang Shuo) yesterday morning, the sky overcast Beijing, but most of the city’s air quality is good to light pollution. According to the Beijing Municipal Environmental Monitoring Center, the most serious pollution process is today, is expected to reach 5 levels of severe pollution. 19, by the impact of air conditioning group gradually improved, the 20 will be transferred to excellent level. Yesterday, the situation is better than expected emissions reduction effectiveness according to previous forecasts, 17, 18, 2009,, Beijing will be followed by three days of heavy pollution weather. 16 on the morning of 8, Beijing heavy pollution emergency headquarters announced that it will start at the beginning of 17 days of heavy pollution orange warning. However, monitoring shows that during the day yesterday, the city of Beijing and the southeast, southwest, most of the time in good to light pollution levels, only the northeast region of heavy pollution, between moderate to severe pollution. According to the Municipal Environmental Protection Bureau bulletin, since at 0:00 on November 17th Beijing launched heavy air pollution in the city of orange signal warning of various departments and districts, strictly implement the emergency measures, inspectors to carry out inspection work, measures for the implementation of the overall situation is good. Monitoring shows that Beijing regions and sources of pollution emissions significantly decreased yesterday, onset of pollution emission reduction measures, effect and superposition of pollution diffusion conditions turn favorable to Beijing, yesterday morning, the concentration of PM2.5 decreased during the day, the city’s air quality in light of the level of pollution. Why did the heavy pollution forecast not come yesterday? Beijing Municipal Environmental Monitoring Center Engineer Li Chen told reporters, on the one hand, because during the day yesterday, there is a small disturbance voltage, diffusion conditions improved slightly, on the other hand, should be combined with strength reduction of Beijing Tianjin Hebei has played a certain effect. As we all know, once the concentration of pollution, it is difficult to come down." Li Chen said that if you do not take measures to reduce emissions, even under the influence of small pressure, there will be a decline in concentration, but there may not be 3 mild pollution so optimistic results". 19 days afternoon air quality improvement or welcome snow next week according to the Beijing municipal environmental monitoring center of the latest forecast, 17 at night, Beijing city gradually into the low system zone, Southeast winds turn southwest, the decrease of wind speed, temperature and humidity rise, diffusion unfavorable conditions, is expected to reach the five level of the level of severe pollution. 18 day wind speed is small, poor diffusion conditions, air quality is expected to be the level of severe pollution level of five. 18 night in the south by South under the direction of regional pollution transport, the peak concentration of pollutants will reach the pollution process. Expected 19 afternoon, Beijing into the front of the high-pressure system, air quality will gradually improve. 20, the air quality will be better. However, with the arrival of cold air, the temperature will drop significantly. According to the forecast, 20 to 21 may usher in a snowfall. 21, the maximum temperature of only 1 degrees, the minimum temperature of -4 degrees C. Follow the strict control of the transmission channel pollution source according to information, authorized by the Hebei provincial government, Hebei province atmosphere.