The smoke and dust produced by restaurant gas stove combustion will emit exhaust gas, but also produce PM2.5, which will bring VOCs pollution. From this point of view, different types of kitchens will produce air pollutants more or less. Food smoke pollution is not a big deal.
Investigations in many cities show that cooking smoke has a great impact on air pollution. Usually, the emission of a stir-fried cabbage PM2.5 is equivalent to that of a car driving more than 50 kilometers.
How do ordinary cooking produce PM2.5? Because the exhaust gas will be produced when the gas stove burns, its emission is related to combustion efficiency. Secondly, Sichuan cuisine, Hunan cuisine and other cuisines have the folk custom of hot pot, which directly produces PM2.5. In contrast, the PM2.5 emissions from cooking and cooking in Guangdong are relatively small, and the pollution of foreign baked and fresh food is also relatively light. However, in the United States, bakers are still included in emission inventory management. Adding ethanol to toast to sweeten bread can also cause VOCs pollution.
Therefore, different types of kitchens may produce air pollutants, so preventing food smoke pollution is not a big deal.
In theory, once the cooking oil reaches the evaporating temperature, it will form gas and fume together with other components. To what extent will their emissions accumulate?
Smoke is harmful to health
When the oil in catering industry is heated to more than 200 C, acrolein, the main component of lampblack, will be produced. It has a strong pungent taste and strong irritation to nasal, eye and laryngeal mucosa. It can cause respiratory diseases such as rhinitis, pharyngitis and tracheitis. Oil fume can cause tears, suffocating cough, conjunctivitis, upper respiratory tract infection, bronchitis, dizziness, sleepiness, nausea, and "spitting fire" when oil burns, and then condensation can occur in addition to the production of acrolein, leading to chronic poisoning, which is prone to respiratory and digestive system cancer. Disadvantage of cooking fume. To prevent the hazards of oil fume, it is very important to install oil fume purification. Imagine the kitchen choking to death without soot cleaning equipment in a few minutes. Every household chooses to line up outside, gathering sand to form a tower, and the total amount is astonishing.