psychochemist

Chapter 182 The Lake of Murder

Yu Fan's words pierced everyone's skin like a needle, making everyone extremely vigilant and terrified.

Chen Xingyang didn't know why Yu Fan said that, so he asked, "Old Yu? You said this lake kills people?"

Yu Fan nodded and said, "That's right, if we really set foot on this boat, then the five of us are destined to die here."

The word "death" appeared very calm in Yu Fan's mouth. After experiencing Zi Yi's sacrifice, Yu Fan grew up a lot, and his heart became more determined and stronger.

Shen Wei was so frightened that he clamped his crotch tightly, and said in surprise: "Damn it? Do you want to be so scary? Will you die? Brother, don't scare me."

Yu Fan said calmly, "I'm not bluffing you, you're really going to die."

Xin Ling guessed, "Do you mean that there are really water monsters in this lake that can eat people? How can I..."

"No, there are no water monsters in this lake," Yu Fan interrupted Xin Ling, "the one who lives in this lake is—the Grim Reaper!"

Everyone opened their mouths in surprise, and subconsciously moved further away from the lake.

Yu Fan pointed to the white smoke on the ground and said, "That's the problem!"

Everyone lowered their heads and saw the looming white smoke on the ground, and some monks still couldn't figure it out.

Yu Fan said to Chen Xingyang: "Old Chen, lend me your lighter."

Chen Xingyang let out an "oh", took out the lighter from the side of the backpack, and handed it to Yu Fan.

Yu Fan took the lighter and lit it in front of everyone, the flame flickered and danced.

Yu Fan moved the lighter down slowly, and everyone stared at the flame intently, only to see that the flame seemed to be getting weaker and weaker. When Yu Fan placed the lighter close to the white smoke on the ground, the lighter went out.

Everyone is even more confused, what is the situation?

Chen Xingyang asked: "What is this white smoke? Is this white smoke poisonous? Why is the lighter's flame extinguished?"

Yu Fan did not answer directly, but turned to ask: "Have you felt any changes in your body? Have you ever felt that your consciousness seems to be blurred? Do you feel that your memory seems to be bad? Your body is very tired. ?”

Only then did everyone realize the problem.

Shen Wei said: "I just feel that my glasses are a bit blurred. I can't see things that are near me clearly."

Xin Ling also said, "I also felt my head was befuddled, I thought it was because I didn't sleep well."

Guo Na: "I feel breathless and sweating."

Yu Fan nodded and said, "That's right! This is what Bai Yan did!"

Chen Xingyang hurriedly asked: "What is this white smoke?"

Yu Fan: "This white smoke is not poisonous gas, it's just the carbon dioxide gas we usually exhale."

Xin Ling was very puzzled, and asked again: "Ah? Why?"

Yu Fan: "Just now I put the lighter close to the white smoke and extinguished it. It was because the concentration of carbon dioxide was too high and the concentration of oxygen was too low, which caused the flame to go out. And what happened to our body is also a typical precursor of carbon dioxide poisoning!"

Yu Fan paused and said: "Carbon dioxide poisoning is caused by being in a low-concentration carbon dioxide environment for a long time or suddenly entering a high-concentration carbon dioxide environment. The former mainly manifests as headache, dizziness, lack of concentration, memory loss, etc.; It is manifested as symptoms of cerebral hypoxia, which can cause reflex respiratory arrest and sudden death. Under normal circumstances, the carbon dioxide content in the exhaled gas of the human body is about 4.2%, and the partial pressure of carbon dioxide in the blood is higher than that in the alveoli. Therefore, carbon dioxide in the blood can diffuse in the alveoli. However, if the concentration of carbon dioxide in the environment increases, the concentration in the alveoli also increases, and the pH changes, thereby stimulating the respiratory center, eventually leading to paralysis of the respiratory center, and causing hypoxia in the body Suffocation. Low concentration of carbon dioxide has an excitatory effect on the respiratory center, and high concentration has an anesthetic effect on the central nervous system, often accompanied by hypoxemia caused by reduced fluorine content in the air. At the same time, it can also inhibit breathing, causing a series of central nervous system symptom."

Guo Na asked: "Brother Yu, how did you find out that this is carbon dioxide?"

Yu Fan: "The density of carbon dioxide is relatively high. I saw the white smoke almost clinging to the ground and the lake. In addition to the bad condition of our bodies, and when we went down the mountain just now, there were no traces of animal life nearby. I have From this guess, the 'environment' here must not be conducive to survival, and finally my experiment with a lighter also confirmed this."

Shen Wei still had doubts: "Strange, where did so much carbon dioxide come from?"

Yu Fan: "According to my analysis, the geological structure here is special. There may be a hot spring at the bottom of the lake, and there are a lot of carbonates in the spring water. This spring water is continuously injected into the lake, resulting in the continuous accumulation of carbon dioxide. Next, due to some geological structure Change, the air pressure balance at the bottom of the lake will be broken, and a large amount of stored carbon dioxide gas will be released in large quantities, forming a phenomenon of high carbon dioxide concentration around the lake. In fact, I have heard of this phenomenon before, the West African country Cameroon in 1984 There was such an event of carbon dioxide release in the lake in 50, when nearly [-] people died in that disaster, at first, people thought it was a punishment from the gods, but it took a long time before scientists found the real culprit—carbon dioxide.”

Guo Na added: "If we got on the boat just now, the concentration of carbon dioxide in the lake would be higher, and we would be poisoned more unconsciously. When we realize the seriousness of the problem, we may no longer have the strength to row back. "

Yu Fan slowly closed his eyes and opened them again, and said, "Yes, at that time, we were already in the hands of the God of Death."

The more everyone listened, the more scared they became. They gradually realized the seriousness of the matter. Just now, Yu Fan relied on his keen insight and long-term accumulated professional knowledge to forcibly drag everyone back from the death line.If Yu Fan didn't notice, all of them would surely die!

Chen Xingyang continued to raise the question: "Then the question is again, who parked this boat here? Could his purpose be to deliberately lure us into the bait? Deliberately want to rely on high concentrations of carbon dioxide in the lake to kill Us? This ship is a trap from top to bottom?"

Yu Fan shook his head and said, "I don't know too well, but I think the person who parked the boat here is not our friend. Ever since we came to the border of Ziwu Village, someone has been trying to attack us, and they still want to kill us! And the methods are getting more and more vicious, we have to find the clues of that ghost and god to cover the grass as soon as possible, maybe the truth will be revealed!"

Guo Na agreed with Yu Fan's point of view: "What I'm saying is, let's keep going, the truth may be in front of us!"

Yu Fan, Guo Na, and Chen Xingyang continued to move forward, but Shen Wei stood still.

Chen Jianyang shouted at Shen Wei: "Little brother, continue to lead the way, why are you standing there?"

Shen Wei showed a vigilant face, and said seriously: "Who are you guys?"

　True trust is not giving everything to the other party, but never touching the bottom line of the other party - carbon dioxide

　　
　
(End of this chapter)