Recently, a middle-aged couple and three pet dogs in Shijiazhuang were killed at home. After investigation, the cause of death was the use of a gas water heater to forget the shower, resulting in carbon monoxide poisoning. It is reported that since November, the number of patients with carbon monoxide poisoning in Shijiazhuang has increased significantly compared with the same period of the previous year. So, how do we avoid gas poisoning in our daily life, and what first-aid measures should we take after gas poisoning?
Carbon monoxide poisoning causes
Carbon monoxide poisoning is a poisoning caused by inhalation of the product through the respiratory tract when the carbonaceous material is incompletely burned.
The mechanism of poisoning is that the affinity of carbon monoxide and hemoglobin is 200-300 times higher than that of oxygen and hemoglobin. Therefore, carbon monoxide is easily combined with hemoglobin to form carboxyhemoglobin, which causes hemoglobin to lose its ability to carry oxygen and cause tissue suffocation. Tissue cells have toxic effects, especially on the cerebral cortex.
Pay attention to "unconventional" carbon monoxide poisoning
Many people think that only carbon stoves, gas, natural gas, charcoal, coke, etc., which cause carbon monoxide poisoning, actually have many "unconventional" carbon monoxide poisoning, such as eating charcoal hot pot, bathing with gas water heaters, especially using straight-line water heaters, etc. .
Experts especially reminded that in recent days, continuous rainy days and low-pressure weather are also prone to cause a variety of diseases. When the air pressure drops, the body compensates for hypoxia, and the breathing and blood circulation will accelerate, and the phenomenon of shortness of breath and heart rate will increase. The human body, especially the cerebral hypoxia, can also experience symptoms such as dizziness, headache, nausea, vomiting and weakness.
Carbon monoxide poisoning incidents increased significantly year-on-year
It is reported that since November, the number of patients with carbon monoxide poisoning has increased significantly compared with the same period of the previous year. Among them, Shijiazhuang City Emergency Center received 19 cases, Hebei Medical University First Hospital received 20 cases, Hebei Medical University Second Hospital received more than a dozen, Hebei Youai Hospital received 6 cases. "
How to prevent carbon monoxide poisoning
At present, gas water heaters and gas cooking in cities are quite common; most households in rural areas use coal or honeycomb coal stoves for cooking, heating, and carbon monoxide (gas) poisoning. Therefore, the best way to deal with carbon monoxide poisoning is to prevent:
(1) Water heaters or gas should not be placed in the room where family members are active;
(2) It is advisable to maintain good indoor ventilation conditions, especially in rainy days, foggy days and snowy days in winter;
(3) Pay attention to the correct use and maintenance of water heater or gas, and pay attention to whether it is completely burned. If a red flame is produced, there is more incomplete combustion, and if a blue flame is generated, most of it is completely burned;
(4) The gas appliance should be placed on the non-combustible material, and no flammable products should be placed around it;
(5) When the auto-ignition gas appliance is not ignited continuously, it should wait for a while, let the discharged gas be released and then ignite;
(6) Before using the gas, the smell of gas should be smelled before, and whether it is leaking;
(7) Do not install the gas water heater in a closed bathroom or in a poorly ventilated place;
(8) The chimney should be installed in the indoor stove, and the chimney structure should be tight and well ventilated;
(9) When eating charcoal with charcoal, be sure to pay attention to indoor ventilation to prevent carbon monoxide poisoning;
(10) The air-conditioned car should pay attention to check whether the exhaust system has air leakage. If it is found that there is leakage in the car, it should be eliminated in time. When the air-conditioned car is stopped, do not open the air conditioner too long; even when driving, you should always open the window to allow convection of the air inside and outside the car.
Carbon monoxide poisoning emergency method
(1) When using a coal stove for heating or a gas water heater to bathe, if you feel dizziness and chest tightness, open the doors and windows as soon as possible.
(2) If you feel that your body is unable to stand, you should crawl on the ground, quickly open the door and window to escape, and call for help.
(3) If you find someone else poisoned, use a wet towel to cover your nose and nose and lean into the room, turn off the gas.
(4) Do not open fire, do not switch the computer.
(5) Lift the poisoned person to a ventilated place quickly, loosen the collar, and keep your breathing open.
(6) Serious poisoning should be performed by artificial respiration or cardiac compression, and dial 120 first aid.
Tips: How to buy a gas water heater
In order to prevent carbon monoxide from destroying the "love" of hemoglobin and oxygen, it is best to monitor and actively protect the kitchen air environment. In recent years, China Consumer Protection Association has issued two “consumption warnings†to remind consumers to pay attention to the safety of gas water heaters. It is recommended to purchase active safety-protected gas water heaters. When the indoor carbon monoxide concentration exceeds the safe value, it can start preventive measures. Eliminate the danger.
At present, only the American water heater brand AO Smith has introduced a gas water heater that actively protects against carbon monoxide. Through the alarm module linked with the water heater, the carbon monoxide is safely monitored, and when the concentration approaches the safety warning value, the sound and light alarm is performed; if the carbon monoxide concentration continues to rise, the gas valve is automatically closed, and the water heater fan is started to quickly evacuate the indoor toxic gas.
Objectively speaking, active protection gas water heaters can greatly increase the safety factor. For any reason, as long as there is carbon monoxide harmful to human health indoors, users can be prompted to automatically open protective measures, even if the kitchen doors and windows are closed in winter, the risk of carbon monoxide poisoning can be minimized. (According to Hebei Youth Daily, Yanzhao Evening News, Guangming Network)
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