There are many classical methods for monitoring soot particles, such as filter weighing method, micro-oscillation balance method, β attenuation method, light scattering method, crystal microbalance method, etc. Each method has its own advantages and disadvantages. Considering the application environment of portable or online monitoring equipment, light scattering method may be the most suitable method for monitoring soot particles, but it is necessary to solve the pollution problem of viscous soot particles on the surface of optical components.

No matter what particle monitoring method is adopted, the filter weighing method is usually used as the benchmark detection and traceability method.

lampblack, a Chinese word, is pronounced as a black substance produced by incomplete combustion of oil, and its source is "Money at the foot of the cloud". Fine and loose black soot deposited by incomplete combustion of oil substances; Can be used to make ink, ink, etc.

The relevant departments analyzed the oil fume samples of frequently fried foods collected from households, and * * * detected more than 221 chemical substances, including aldehydes, ketones, hydrocarbons, fatty acids, alcohols, aromatic compounds, esters, lactones and heterocyclic compounds. Known mutation carcinogens such as volatile nitrosamines were also found in cooking oil fume. Belonging to indoor air pollutants.

Toxic fumes from high-temperature oil fume can damage the respiratory system, thus inducing lung cancer. The production of toxic smoke is related to temperature: when the oil is burned to 1.51 degrees Celsius, the glycerol in it will produce acrolein, which has a strong spicy taste and has a strong stimulus to the nose, eyes and mucous membranes; When the oil burns to "spit fire", it will not only produce acrolein, but also produce aggregates, which will lead to chromosome damage and cancer. Repeatedly heated cooking oil contains more carcinogens, which is more harmful.