Now, the enthusiastic neighbor felt that it might be a natural gas leak, and did not dare to slack off, so he quickly called the fire brigade and the emergency center.

Why call the fire brigade? Because every house is covered with heavy security doors, and if there is no fire brigade to break down the door, the emergency center emergency personnel will not be able to enter, and precious time will be wasted in vain -- this is the bloody lesson of last year's gas poisoning incident.

The fire brigade and emergency center acted quickly after receiving the alarm, immediately dispatched fire trucks and ambulances, and it did not take long for them to drive into the community with sirens one after the other.

The neighbors didn't go to buy breakfast anymore, and waited at the door of Wang Mugong's house, sending their family downstairs to have breakfast.

Firefighters and first responders came upstairs with tools, and neighbors explained the situation in a few words.

As soon as the firefighters heard this, in order to avoid more serious consequences caused by the gas explosion, they immediately arranged for the evacuation of the upstairs and downstairs neighbors, and at the same time carefully removed the door locks with tools.

The heavy security door opened, but strangely, the firefighters didn't smell the gas — the gas itself is colorless and odorless, but in order to make people aware of the gas leak earlier, the gas company doped it with foul-smelling gas.

The firefighters didn't smell the foul odor, and the gas alarm they carried with them didn't go off.

Wang Carpenter's family all fell to the ground, there were several pools of vomit on the floor, Wang Carpenter was the most serious, foaming at the mouth and unconscious, his family was still conscious, but the whole body was weak and unable to move.

Firefighters then determined that it was not a gas leak, but food poisoning.

Since the first responders were also sent downstairs by the firefighters to wait, the firefighters ran into the house one after another, carried Wang Carpenter's family downstairs one after another, and helped the first responders send them into the ambulance.

However, the matter did not end there, and the firefighters immediately developed symptoms of chest tightness, shortness of breath, and difficulty breathing, and were taken into the ambulance together with Wang Mugong's family.

Before the ambulance could drive away, the emergency center received a second call to the police, the reporter was also from this community, from different units in the same building, it was the family of Zhao welder who called the police, claiming that Zhao welder's chest tightness and shortness of breath were difficult to breathe and could not stand, probably a heart attack.

The first responders were alert, felt that the situation was serious, and rushed to Zhao welder's house after taking protective measures.

At this time, Zhao welder's consciousness was blurred and weak, and his family was in a hurry, but the emergency personnel not only carried Zhao welder downstairs, but also asked his family to also go downstairs for a physical examination.

His family didn't understand the situation and almost quarreled with the emergency personnel, but after the first responders' persuasion, they reluctantly followed downstairs for a physical examination, and the results of the examination were normal.

The symptoms of Zhao Welder are very similar to those of Wang Carpenter's family, and the degree is between that of Wang's family and the firefighters.

After the fire brigade and emergency center got the information, they determined that this was not a simple food poisoning incident, but could be a suspected mass poisoning incident, or even a more serious incident.

So, the fire brigade and the emergency center called the police.

After the police got the news, they rushed over to block the scene with 100,000 people in a hurry, and organized the situation to further expand.

According to the feedback from the emergency center, it was determined that Zhao welder, Wang Mugong's family, and firefighters were the same poison, and the toxicity was extremely violent, but the specific poison still needs to wait for the test results, and it is certain that this poison is by no means a common toxin.

I also want to know that the firefighters showed symptoms of poisoning after only a few minutes at Wang Mugong's house, how strong is this toxicity?

The police urgently called in a biochemical SWAT team to go all out to find the source of the poison and toxins.

Speaking of which, Centec asked the police for a single-lens reflex camera and asked Zhang Zi'an to see the LCD screen.

Sheng Ke switched photos one by one, and these photos were taken by the biochemical SWAT team, and the shooting location was Wang Mugong's house.

Zhang Zi'an saw that Wang Carpenter's house was very messy, with miscellaneous things piled up everywhere, and there was almost no place to stay.

Older people are often reluctant to throw away old objects that are useless, and as a result, there are more and more things in the home.

Sheng Ke sighed: "This house is so messy, we don't even know what the source of the poison is, we can only look for a breath, it's almost like looking for a needle in a haystack......"

Because it is a densely populated area and the toxicity of the unknown toxin is extremely strong, the SWAT team does not even dare to open the windows for ventilation, for fear of affecting the nearby people.

"Wait!"

Zhang Zi'an suddenly called out to Sheng Ke, "Captain Sheng, take two steps back." ”

Shenghua didn't know what he had found, and did as he was told.

Director Chen stood on the other side of Centec, staring intently at the LCD screen of the DSLR camera.

Zhang Zi'an saw that this photo was taken in a corner of the fish tank, the water in the fish tank was still clear, but several small fish were all floating on the surface of the water and turned their stomachs, and they had been dead for a long time.

"What's wrong, Xiao Zhang, what did you see?" asked Director Chen eagerly.

Zhang Zixin doubted, could it be that the toxin came from the fish tank?

But he couldn't be sure, because the toxin was so strong that even a few breaths would poison him, and if it was dissolved into the water, it would be normal to poison the fish in the tank, and it would not prove that the source of the poison was a fish tank.

"Director Chen, Captain Sheng, I don't know if Welder Zhao can speak now? If I can, I would like to ask Welder Zhao a few questions - of course it would be better if Carpenter Wang could answer, but Carpenter Wang is not sober yet, right?" he asked.

Centec immediately used the walkie-talkie to get in touch with the police officers stationed at the emergency center.

"Zhao welder is out of danger and can speak. Centec returned the favor and asked Director Chen with his eyes.

Director Chen nodded slightly.

Centec handed the walkie-talkie to Zhang Zi'an.

"Hey, is it Master Zhao? I'm Zhang Zi'an from Qiyuan Aquarium, and I'm assisting the police in finding the source of the poison that poisoned you, so please tell me what I did at Wang Mugong's house last night." ”

The situation was urgent, Zhang Zi'an omitted politeness, and explained his identity and purpose of the call clearly in a few words.

Zhao welder's hoarse voice came from the walkie-talkie, looking sluggish, and the usual loud voice was like two people.

"That...... We didn't do anything...... Wang Carpenter turned over the tank, got the fish and shrimp out of the tank, poured out the water in the tank, and planned to reopen the tank, I watched from the side, who knows how to be so unlucky......"

Zhang Zi'an was waiting for this sentence, he had to confirm that Wang Carpenter and Zhao Welder were really turning over the cylinder.

Turning over the tank means restarting the ecosystem in the fish tank and cleaning the fish tank.

Some of the inhabitants of the tank may not be very happy.