The heavy pollution weather means AQI is greater than or equal to 201, that is, air pollution reaches level 5 (heavy pollution) or above. According to relevant regulations, Xianning divides heavy pollution weather alert into three levels, from light to heavy is as follows: level III (yellow) early warning, II (orange) early warning, and I (red) early warning, which is corresponding to level III, II, and I emergency response.
When the future air quality likely reaches the starting condition of corresponding alert, Xianning Heavy Pollution Weather Emergency Headquarters will issue early warning information based on the monitoring situation. The warning content includes starting time, place, scope, warning level, AQI, major pollutant, probable duration, potential risk, health protection and travel advice for different crowds, particularly warning susceptible population to do a good job of protection.
As soon as the warning information is released, the emergency response will be started immediately. The emergency response measures at different levels are divided into three classes: health protection guidance, recommendatory emission reduction and mandatory emission reduction measures. (By Zhen Qiang/Xianning Daily)