The most serious fog and haze appeared in the second half of the year. Where are they?

The Central Meteorological Observatory predicts that there will be foggy weather in parts of central and southern Shandong, central and northern Jiangsu, southern Hebei and other places from the night of 1 14 to the morning of 15, and there will be strong fog with visibility less than 200 meters locally. From the night of 14 to the day of 17, there will be light to moderate haze in the central and southern parts of North China, the central and western parts of Huanghuai and Wei Fen Plain, among which there will be severe haze in southern Tianjin, southern Hebei and northern Henan.

Wang Guixia, a forecaster of Shandong Ecological Environment Monitoring Center, said: "There was a precipitation process in Shandong from the afternoon of 17 to 18. It is estimated that the precipitation intensity of 18 will increase, and the pollution process will basically end due to the wet removal of precipitation. "

When there is heavy pollution weather in autumn and winter every year, all parts of Shandong will start emergency response to heavy pollution weather according to the situation, and some enterprises will take measures to limit production.

This year, Shandong will continue to implement differentiated grading control measures. "According to the work deployment of the Ministry of Ecology and Environment, we increased the number of key industries with performance grading from 15 to 39, adhered to differentiated emergency management and control, and made emergency emission reduction more accurate. Zhang said, Director of Atmospheric Environment Division of Shandong Provincial Department of Ecology and Environment.

Extended data

Selection of protective equipment in haze weather;

1, N95 mask: N95 mask is one of nine anti-particle masks certified by NIOSH. "N" means particles that are not suitable for oiliness (cooking fumes are oily particles, but droplets produced by people talking or coughing are not oily); "95" means that the filtration efficiency reaches 95% under the detection conditions specified by NIOSH standard.

N95 is not a specific product name. As long as the product meets the N95 standard and passes NIOSH review, it can be called "N95 mask".

2.KN90 respirator: Dust masks are divided into KN and KP according to their performance. KN is only suitable for filtering non-oily particles, while KP is suitable for filtering oily and non-oily particles. It is mainly suitable for 0.5% production in non-ferrous metal processing, metallurgy, steel, coking, gas, organic chemicals, food processing, construction, decoration, petrochemical, asphalt and other industries. Oily and non-oily particulate pollutants such as dust and smoke with a diameter exceeding 185 micron. For 0. The filtration rate of non-oily particles based on 0.75 micron is above 90%.

3. Gas mask: As personal protective equipment, gas mask is used to effectively protect people's respiratory organs, eyes and facial skin and prevent toxic substances such as toxic gases, dust and bacteria. Gas masks are widely used in petroleum, chemical industry, mining, metallurgy, military, fire fighting, emergency rescue and disaster relief, health and epidemic prevention, science and technology, environmental protection and other fields.

China Net-The worst fog and haze in the second half of the year is coming!