Hydrogen Sulfide (H2S) is a gas commonly found during the drilling and production of crude oil and natural gas, plus in wastewater treatment and utility facilities and sewers. Colorless, flammable, poisonous and corrosive, H2S gas is noticeable by its rotten egg smell. If we inhale it for 5 minutes (depending on the amount of gas Concentration) will get tired and then die.
The H2S monitor, is always clipped to the dress as it works on the oil, gas field and ship. H2S will be released sooner or later when the oil well opens. It never happens. Some may be asleep. The alarm will start beating. Then run away and put on the breathing apparatus and wait for the captain's order.
Why so dangerous?
Humans need 20.9% oxygen to survive. But there is not enough oxygen in the place where H2S is formed. The smell of juicy eggs, this gas has no color. Because it is thicker, it will always be on a lower surface. That is to say, the case itself can be taken, and there is no harm in looking from the field to the well. But the H2S base may be looking at us as well.
As soon as we start breathing gas, the amount of oxygen decreases and we start to get tired. We will not look back as we have no knowledge of this. During that time we take in. With each breath, he enters the body and begins to work. "Dim" With that we become confused and unconscious and then die.
How can this be avoided? Buy a Portable Gas Monitor. You can connect a small hose to it and lower it to the well and check the level of oxygen from the top. If it shows 19%, the monitor will start sounding an alarm (beep beep) and a red light will flash. This means that the level of oxygen below is a warning not to go down.
Remember we don't need 20.9% oxygen and we can survive at 19.9%. But there is something to think about. That 1% gas is enough to eliminate you. “SAFETY FIRST”. Only go down if my oxygen level is accurate.
Now, if someone falls down like this without anything, the people standing on top of it should not jump down and try to save them. Because going down without a breathing apparatus is dangerous for you too. So inform FIREFORCE as soon as possible and tell them something. Wait for them to come.