The Beijing Tianjin Hebei region month before the end of the implementation of a unified heavy pollu mmhouse

The implementation of a unified heavy pollution warning grading standards – Beijing JINGWAH times of Beijing Tianjin Hebei region before the end of the month (reporter Jia Ting) yesterday, the reporter learned from the Beijing Tianjin Hebei regional heavy pollution weather warning classification standards are unified. Based on the core area of the city at the beginning of the six unified, implementation scope will be expanded to Tianjin prefecture level city in Henan province and Shandong Province, the city will be in the transmission channel, around the implementation of early warning unified classification standard before the end of October this year, the region realize the unity to deal with heavy pollution weather. According to the reporter, in early February of this year, the Ministry of environmental protection China Meteorological Bureau jointly sent a letter for the Beijing Tianjin Hebei level and above city for unified weather warning of heavy pollution grading standards, including Beijing, Tianjin, Tangshan, Baoding, Langfang, Cangzhou took the lead in the implementation. The environmental protection department responsible person had introduced since last winter, the Beijing Tianjin Hebei region experienced heavy pollution weather process of three long and wide, all in response to the process, exposed the pollution warning level is roughly the same but different phenomenon, affecting coping effect and regional collaboration. According to the unified core area announced in early 6 after the standard, unified warning grading standards cities divided into blue and yellow orange color warning 4. Specifically, the forecast air quality index (AQI) average daily value (24 hours mean) > 200 and did not meet the high level of early warning conditions, the start of blue warning. AQI day average forecast 200 will continue for 2 days and above and did not meet the high level of early warning conditions, start yellow warning. Forecast AQI day average > 200 will last for 3 days, and the emergence of AQI day average > when the case of 300, start orange warning. Forecast AQI day average > 200 will last for 4 days and above, and AQI daily mean > will continue for more than 2 days and above, or predict the AQI daily average of up to 500 and will last for more than 1 days and above, start red warning. 2012 release of the ambient air quality index (AQI) technical regulations (Trial), the provisions of the AQI for 201 – 300 of the time and space for the quality of heavy pollution of, AQI greater than 300 of the space and time for the serious pollution of air quality. During the trial standard start the red warning condition divided into two kinds: one is the prediction of severe pollution for at least four days continuously, and at least two days to serious pollution; two is predicted as long as one day and above the air quality index reached the highest value of 500, you can start the red warning. According to the relevant experts, the trial has been a unified warning standards both emphasize the duration of pollution and take into account the impact of the degree of pollution to the health of the public. Blue, yellow warning threshold is consistent with the Beijing plan, but orange warning and red warning threshold has been tightened, the number of days to start the red warning Beijing may be significantly reduced. This is taking into account the differences and expand the scope of the Beijing Tianjin Hebei around, but also means that in the future once the Beijing Tianjin Hebei region of heavy pollution weather, will not appear in the same PM2.5 concentration level of the city, but the warning level. In February of this year, Beijing, Tianjin, Tangshan, Baoding, Langfang, Cangzhou and other cities immediately opened the heavy pollution weather.相关的主题文章: