The mystery of the class of killer murders killing 12,000 people in London was resolved

The researchers revealed how the chemical combined to form the acid cloud that killed 12,000 in 1952.

Imagine that one day you can't see your feet, the Sun is completely hidden and breathing becomes difficult. That's what happened on December 5, 1952, a nightmare for Londoners - when a mysterious fog covered the entire city.

But then when the fog gradually subsided, thousands of people died. It is estimated that at that time there were about 4,000 deaths.

"Assassin" fog covers London in 1952.

The secret to the origin of that killer fog still leaves researchers with a headache. And recently, the solution has been revealed.

In a new analysis, the researchers correctly identified the chemical process associated with natural fog as a result of burning coal . creating a killer acid cloud.

Specifically, the sulfuric acid particles mixed with natural fog are the silent "killer" in London that day.

Thick fog, covering the sun, thousands of people have had respiratory problems.

Back in 1952, when the first mist appeared, the people of London were not informed and then a few days later, when the fog became dense, covering the Sun, thousands of people encountered problems. respiratory problems.

As a result, at least 4,000 people were killed, more than 15,000 others were hospitalized, thousands of cattle were also killed. According to some experts, the number of people killed is estimated at 12,000.

The number of deaths by "killer fog" in London can reach 12,000 .

According to Professor Renyi Zhang and Harold J of the University of Texas, sulfuric acid particles are formed from sulfur dioxide contained in coal and power plant emissions and many other means.

The combined effect of sulfuro gas in dew and dust in the air has formed this dense fog. Dust mainly comes from dust particles of coal smoke, components such as sulfuro gas in the air, silicon oxide, aluminum oxide can create dew droplets, catalyze sulfuro gas in the air, creating oxidation reactions into SO ₃ , forming "sulfuric acid mist" harmful to human health.

Large amounts of toxic gas and dust in the mist of sulfuric acid after humans inhale into the lungs will cling to lung cells while gradually accumulating and entering the bloodstream, spreading throughout the body.

According to experts, these killer smogs are becoming more common in modern countries like China. However, the pollution problem is not quite the same.

These killer smogs are becoming more common in modern countries like China.

In China, sulfur dioxide, nitrogen dioxide is mainly discharged from power plants, cars, and ammonia coming from fertilizer use. If London fog is highly acidic, haze in China is basically more neutral but also causes great health damage.

Experts are now trying to get people to join hands to protect the environment, cut emissions because if you "impart a waste", the killer smog will reappear and shock the world.