Making a hearty dinner with home gas is equivalent to standing on the side of the road and inhaling car exhaust for 20 minutes in the evening rush hour! Hearing this information, do you still dare to cook at home with gas?
You think I'm talking about PM2 again5. Actually, it's not. This time it's more than 25 smaller nanocluster aerosols, referred to as NCA, although their diameter is 1-3nm, but the NCA released by cooking with gas will be concentrated in 1Below 5nm.
This is a research article that has just been published in PNAS Nexus. The researchers found that if propane gas was used for 20 minutes of cooking, the concentration of NCA in the room rose from 10 to the fifth to the sixth to the fifth to the sixth power per cubic centimeter, and even soared to the seventh power of 10, that is, the concentration of NCA increased by a factor of 1,000 to a factor of 100,000, far exceeding the concentration levels reported in urban and rural outdoor locations. The researchers compared the NCA in the house at this time and found that the NCA in the air was 10 times higher than that in the Pearl River Delta cities. This is especially true when boiling water with gas, when grilling cheese or butter the NCA will condense into larger diameter particles, and there are not many tiny NCAs.
The study further found that these scales were less than 15nm CA is emitted indoors when cooking with propane gas, and will be deposited in the upper respiratory tract, trachea, bronchi and lungs of the person, and may also be transferred between migratory cells, into the bloodstream and transferred to the liver and brain, etc., and children are even more affected, NCA deposition in their trachea and bronchial area is higher**22 times while deposited in the lungs higher than **30 times! It seems that cooking with propane gas is too harmful.
So under what circumstances can we come into contact with propane gas for cooking, one is a gas tank, that is, liquefied petroleum gas, and its main component is propane. In addition, when you go to some restaurants and stalls to eat barbecue, you will also encounter the use of LPG stoves, which is also necessary to be careful.
At present, most of our cooking households use natural gas, which mainly contains methane, although the article does not use methane gas for experiments, but we also need to pay attention to it, because natural gas also contains 3% propane. Nor can it be taken lightly.
So what to do? I can't help but cook, the article still suggests that when cooking at home, you must close the kitchen door, open the kitchen window, and turn on the exhaust of the range hood to keep the child away from the kitchen. This can be relatively safe.