Defeating an Enemy with Science
Decompression sickness is common among divers, and nitrogen narcotics can cause symptoms during deep dives. When transitioning from a high-pressure environment to a normal environment, nitrogen bubbles may form in the body, which can compress blood vessels and nerves, and may also block capillaries, causing symptoms such as itchy skin, pain, sweating, and burning sensations. Subsequently, it may damage the central nervous system, manifesting as fatigue, dizziness, drowsiness, and ataxia, and may also cause symptoms such as difficulty breathing, coughing, chest pain, and angina.
Therefore, when working in environments with high concentrations of nitrogen, appropriate protective measures must be taken, such as wearing masks and gloves, to avoid nitrogen poisoning and other related hazards.
For example, excessive oxygen in the air can cause serious harm to the human body.
First, for the human body, prolonged inhalation of high concentrations of oxygen can lead to a series of health problems. High concentrations of oxygen can exceed the lungs' metabolic capacity, causing chest pain, headaches, and even oxygen poisoning, resulting in symptoms such as nausea, vomiting, and blurred vision.
In extreme cases, such as inhaling pure oxygen under high pressure, the partial pressure of oxygen in the alveoli will drop rapidly, leading to tissue hypoxia and even poisoning.
In addition, high concentrations of oxygen can produce a large number of oxygen free radicals. These free radicals can damage the normal physiological functions of cells and even cell structures, directly killing cells and ultimately leading to individual death.
For ecosystems, high concentrations of oxygen can have fatal effects on organisms. Excessive oxygen intake generates a large number of free radicals in the human body. These free radicals indiscriminately oxidize most substances in our bodies, disrupting the normal physiological functions of cells and even cellular structures, directly killing cells and ultimately leading to the death of the organism. This not only causes the death of producers and consumers (plants and animals) but also affects decomposers, thus destroying the entire Earth's ecosystem. Furthermore, high concentrations of oxygen accelerate the aging process of organisms, alter their growth patterns, and may even lead to a significant drop in global temperature, resulting in devastating disasters.
In conclusion, excessive oxygen levels in the air can cause serious harm to both humans and ecosystems, including health problems, biological mortality, and ecosystem collapse. Therefore, maintaining adequate oxygen concentrations is crucial for humans and other life on Earth.
For example, the carbon dioxide level in the air is too high.
It can lead to a range of health problems, including headaches, dizziness, difficulty concentrating, memory loss, and general weakness. In severe cases, it can cause breathing difficulties, coma, or even death.
Carbon dioxide is a common gaseous component of the air. Although it is not toxic in itself, it can have adverse effects on human health when its concentration exceeds a certain limit. The effects of carbon dioxide on the human body vary depending on the concentration range.
At lower concentrations (350~1000ppm), people may feel the air is stuffy and begin to feel drowsy.
When the concentration reaches 2000-5000 ppm, people may experience headaches, drowsiness, lethargy, difficulty concentrating, rapid heartbeat, and mild nausea.
Concentrations exceeding 5000 ppm can lead to severe hypoxia, causing permanent brain damage, coma, or even death.
Furthermore, excessive carbon dioxide levels can affect the respiratory center, leading to cognitive impairments such as memory loss and slowed thinking, and may exacerbate the risk of cardiovascular disease, posing a threat to overall health. Therefore, maintaining good indoor air quality and controlling carbon dioxide concentration within safe ranges is crucial for protecting human health.
The same applies if helium, neon, argon, krypton, xenon, or radon exceed the limits.
This is only exceeding the standard.
But what if it's not just exceeding the standard?
For example, filling a kilometer radius with carbon dioxide.
And that's exactly what Moke did, directly generating carbon dioxide and filling the entire space.
"Like a dragon..."
At this point, the Red-Hair had changed; he felt dizzy after taking just one breath, as usual.
Clearly, Moke had tampered with the air.
If we don't act now, we'll miss our chance.
The next second, his Conqueror's Haki erupted instantly, transforming into a red dragon that coiled around the longsword in his hand before stabbing directly at Moke.
Upon seeing this, Moke's expression changed.
Because from this sword strike, he sensed a power far greater than the previous Divine Departure.
In an instant, Moke entered his Dragon-Man Form and simultaneously entered his Holy Sword State.
Conqueror's Haki and Armament Haki were simultaneously wrapped around the Dragon Claw. Quake-Quake energy was also present at the fingertips of the Dragon Claw. The five small white circles were the best distinguishing feature.
Then, Moke met Red-Hair's attack head-on with a single claw strike.
"Boom..."
The two clashed head-on once again, their powerful energies colliding repeatedly.
"Not good..."
The Red-Hair's expression changed drastically.
It was only through this encounter that he truly realized just how outrageous Moke's power was in his strongest state. And indeed, with both his Zoan Five-Clawed Golden Dragon Form and Holy Sword form wielding power simultaneously...
The Quake-Quake Devil Fruit Ability further amplifies the power of this attack.
It's directly blessed by three fruits.
This made Moke, who was already incredibly powerful, even stronger to an absurdly high level.
At this moment, although the Red-Hair wasn't immediately knocked back in this exchange of blows, he was still struggling to hold on, gritting his teeth... and even the muscles all over his body seemed to burst open in that instant.
The originally streamlined shape immediately began to resemble a bullfrog.
It's clear that the Red-Hair at this point has reached its peak.
Most importantly, he was holding his breath. He didn't dare to breathe at all... but under such intense resistance, he needed to breathe even more... just to relieve himself.
"Boom..."
Finally, the Red-Hair couldn't hold on any longer and opened his mouth to take a breath.
Instantly, I felt dizzy!
In such an intense battle, his oxygen demand is absolutely enormous. But this breath is full of carbon dioxide; no wonder he can't feel comfortable.
At this moment, the carbon dioxide he inhaled made his heart race and even made him feel nauseous.
This is only because he's physically strong; if it were someone else, in this state of combat, inhaling pure carbon dioxide... would definitely have led to severe oxygen deprivation and death.
After all, under normal circumstances.
Concentrations exceeding 5000 ppm can lead to severe hypoxia, causing permanent brain damage, coma, or even death.
A concentration of 500 ppm means that the solute accounts for 0.5% of the total weight of one million parts of solution.
In terms of conversion, 1 ppm equals 0.0001%, meaning 500 ppm equals 0.05%. Specifically, in terms of mass, if 1 liter of water contains 0.5 grams of solute, then its concentration is 500 ppm.
You can imagine how toxic pure carbon dioxide is!