There is a possible item that could cause dangerous gases , vision , sight irritation and a potential health emergency along with some injuries reported.
That is the flare gun or rocket. I am sure I read one of the hikers was into making rockets or fireworks and it was maybe one of the two Yuri's . The burns on Yuri's hand could be from holding the flare and accidentally setting it off , or some other type of home made device.
From AI
AI Overview
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Yes, looking directly at a flare at close range can potentially damage your eyes. Flares are very bright and can cause temporary or even permanent damage if viewed for too long or from too close.
Here's why:
High intensity light:
Flares produce intense light and heat, which can overwhelm the eye's natural protection mechanisms.
Potential for burns:
The heat from a flare can cause burns on the cornea or even the retina.
"Arc eye" or "welder's flash":
Exposure to intense light sources like flares can cause "arc eye" or "welder's flash," leading to pain, tearing, sensitivity to light, and even blurred vision.
Retinal damage:
In extreme cases, the intense light can damage the retina, potentially causing permanent vision loss.
If it went off inside a tent.
If a flare gun were to go off inside a tent, it could cause severe eye damage. The intense light and heat from the flare could cause immediate and potentially permanent blindness, as well as flash burns to the eyes and surrounding tissue. The blast itself could also cause eye trauma, including ruptured eyeballs or detached retinas.
Here's a more detailed breakdown:
Flash Burns:
The intense heat from a flare can cause burns to the delicate tissues of the eye and eyelids.
Photokeratitis:
This is a painful condition caused by damage to the cornea (the clear front part of the eye) from ultraviolet radiation. It can cause intense pain, light sensitivity, and blurred vision.
Retinal Damage:
The intense light can damage the retina (the light-sensitive layer at the back of the eye), potentially leading to vision loss or blindness.
Potential problems from inhaling the gases
perchlorate in flare guns can be toxic if inhaled. Inhalation of perchlorate, especially in high concentrations, can cause various health issues, including irritation of the respiratory tract, disruption of oxygen transport in the blood, and, in severe cases, potentially fatal complications.
Here's a more detailed explanation:
Health Effects of Perchlorate Inhalation:
Irritation:
Breathing in perchlorate can irritate the nose, throat, and respiratory tract, leading to coughing and wheezing.
Methemoglobinemia:
High doses of perchlorate can interfere with the blood's ability to carry oxygen, causing methemoglobinemia. This condition can result in fatigue, dizziness, cyanosis (a bluish tint to the skin and lips), and in severe cases, respiratory failure or death.
We have a reason to cut the tent, a reason for poor sight , some explanation for some burns and injuries and perhaps a reason to find a stream bed .