What are the regulations of environmental protection bureau on smoke exhaust in residential hotels?

This is a local law, but it is similar. The following is the "Administrative Measures for Environmental Protection of Catering Services in Nanning" for your reference. Please consult the local environmental protection bureau for details.

"Nanning catering industry environmental protection management measures" seventh.

It is forbidden to build new catering service projects that produce fume pollution or stench in the following areas or places:

(1) Residential buildings (excluding residential buildings with single property rights);

(two) there is no special flue on the roof of the commercial and residential building;

(three) the main buildings of museums, libraries and archives;

(four) drinking water source protection areas.

Article 8 A building engaged in catering services shall be provided with a dedicated flue for catering services that is not connected with ventilation pipes and household flues, and the installation position of pollution prevention facilities such as noise, oil fume and wastewater shall be reserved.

Harm of lampblack

Toxic fumes from high-temperature oil fume will damage the respiratory system, thus inducing lung cancer. The generation of toxic smoke is related to temperature: when the oil burns to 150 degrees Celsius, the glycerol in it will generate acrolein, which has a strong spicy taste and has a strong stimulating effect on nose, eyes and mucous membranes; When oil burns to "spit fire", it will not only produce acrolein, but also produce aggregates, leading to chromosome damage and cancer. Repeatedly heated edible oil contains more carcinogens and is more harmful.

Reference source Baidu Encyclopedia Nanning Food Service Industry Environmental Protection Management Measures