Doomsday: Unlimited upgrades to the shelter

Chapter 165 Acid Rain Strikes
Xie Yannan recalled it carefully, and it seems that everything in Bungu is unique and cannot be related to Er, a pond, a livestock shed, a large shed, a one-story basement...

A one-story basement...a one-story basement...

Xie Yannan repeated it several times, basement, basement, first floor, two floors...

He frowned slightly, feeling that something was wrong.

It seems that this is the only one that has some connection. After all, the soil in his hand is of a type not found in Pengu. If there is a second layer in the basement, then the soil may come from the second layer.

Of course, this is just Xie Yannan's guess. He has lived here for several months, and he has not discovered that there will be a second floor in the basement. Although the first floor has almost been developed and utilized, he will probably expand it to the surrounding area. space for emergencies.

Xie Yannan thought about this and immediately denied his own idea. It is impossible that there are two floors in the basement, but he and the system have not been able to find out.

But now we can only ask Wei Xiaofei what happened after she wakes up.

Xie Yannan clapped his hands, hugged Wei Xiaofei back into his arms, kissed her forehead lightly, and walked slowly back to his room.

After gently putting it down, he turned back to the kitchen, intending to see if there were any other clues.

"Brother Nan, my stomach hurts. Can I apply for some medicine?"

Qin Xiaocheng clutched his stomach, sweat ran down his forehead, he gritted his teeth, and looked at Xie Yannan eagerly, looking very uncomfortable.

Xie Yannan looked Qin Xiaocheng up and down and felt a little strange, "You don't look weak. Is it because you have a cold?"

After all, he is following his little brother, so he should care about him no matter what, not to mention Qin Xiaocheng has always been loyal to him.

"No, I drank some filtered water when I got up in the morning. The taste of the water was weird. I thought it was because I didn't wake up. After drinking it, my stomach hurts until now, and I feel that my stomach is always acid reflux. "

Qin Xiaocheng slurred his speech due to the pain, so he squatted on the ground and moaned softly.

"How could this be?"

Before Zeng Rui left, he leaned over, touched Qin Xiaocheng's forehead, and asked him to stick out his tongue, "You have a fever, what did you eat, seems to be poisoned?"

Poisoning?

"No, everyone eats the same thing. I just got up earlier and drank a little more water."

Qin Xiaocheng quickly explained.

That's right, the meals everyone eats every day are cooked by Wei Xiaofei and Qin Xiaocheng, it's impossible that he was the only one who got poisoned.

If it's not about food, is it about water?Qin Xiaocheng just mentioned that he drank a little cold water in the morning.

Xie Yannan hurriedly ran to the bathroom to release the water to have a look. The water in the bathroom was also filtered, just like the cold water Qin Xiaocheng drank.

The water is a little yellowish, not like the natural rainwater color, and it has been filtered. Logically, this should not happen.

He took a handful of water, put it to his nose and smelled it, and there was a slight sour smell.

"The smell of this water is not quite right." Xie Yannan breathed a sigh of relief, and smelled it again, it was strange.

"It smells like acid rain." Zeng Rui went back to his room and took a look, then rushed out of the room and said.

Acid rain?

There are no factories here now, so how could there be acid rain?Xie Yannan frowned, and confirmed with Qin Xiaocheng again, "Apart from drinking water in the morning, you really didn't eat anything else?"

"No. There was a light rain last night, and I felt that the air outside was a bit weird. I always thought it was because I didn't wake up and my head was dizzy. Now that I think about it, it might really be acid rain. Ouch, Oh my stomach hurts."

Before Qin Xiaocheng finished speaking, he clutched his stomach and moaned again.

Zeng Rui and Xie Yannan helped Qin Xiaocheng to the medical room, let him sit on the bed, and found some simple painkillers and anti-inflammatory drugs for him to take first.

This means that acid rain has caused water pollution, so meow!How does acid rain form?

Although there are many factories around, and the sewage chimneys are directly aimed at the sky without filtering, but because of the outbreak of zombies, it seems that they should have been abandoned for a long time, so it is not likely to form acid rain now.

Then the environment has been damaged a bit seriously, and the continuous damage will actually have a certain impact on the future.

When Xie Yannan thought of acid rain, he thought of the exposed trees and metal containers in Bungu, which would definitely be damaged.

Back in his bedroom, after stepping on his slippers, he hurriedly returned to the ground.

But fortunately, there was only a little patter of rain last night. Except for some traces of corrosion on the soil on the ground, the condition of the entire basin didn't look too bad.

He walked to the pond where the fish were raised, and the fish in the pond did not swim around as lively as usual, but rather lifeless, they continued to hide under the aquatic plants.

The surface of the water turned white, probably because the acid rain fell in, which acidified the water in the whole pond more or less.Fortunately, there are more aquatic plants in the pond, so the acidified water will not completely deprive the fish of oxygen, but it still does some damage to them.

What the hell kind of weather is this? The cold wave and acid rain come together, which makes people unable to complain.

There are also many metal containers and columns in the valley, on which there are obviously corroded Hengji, and the acid rain flows down the top, leaving traces one by one.

It's definitely not going to work like this. This is just a very small amount of acid rain. If it were larger and the pH value was smaller, it would easily corrode these metals completely and make them useless.

Not only that, but the acid rain has affected the pH value of the land, and the crops that were originally thriving have obviously begun to change.

The tops of some crops have begun to turn black, which shows how much the acid rain has affected them.

"Hey!"

Xie Yannan sighed. He didn't expect that he would not be able to stop for a moment in this apocalyptic world. He had to keep sharpening himself. A cold wave had just sent away, and then there was another acid rain.

However, he himself is a student of architecture, and he is quite professional in the knowledge of moisture and acid resistance.

In Basin Valley, among the objects exposed to the outside, the most afraid of acid rain are those metal containers and columns, which can be anti-corrosion by electroplating and painting.

Of course, electroplating is the best choice. If it is painted, if the temperature is too high, the paint layer will fall off, and the metal will be exposed to the acid rain without defense.

There are four methods of electroplating, anodic oxidation, electrophoresis, micro-arc oxidation, and physical vapor deposition.

(End of this chapter)