Wasteland Survivalist: A Scientific Guide to Post-Apocalyptic Survival

Gu Lang turned on the windshield wipers and rinsed the car for five minutes.

After seeing that the car body was completely clean, he turned off the water gun.

Black sewage slowly flowed into the gaps in the drain cover.

When the surface radiation was tested again, the value was significantly lower this time.

Gu Lang tore off the plastic bag and transparent tape that had been used to seal the bag.

I opened the front cover and reconnected the circuit.

When the unlock button is pressed, the car emits a "beep" sound, and the turn signals on both sides flash.

He finally breathed a sigh of relief; the previous modifications had allowed the car to withstand this severe test.

Gu Lang secretly rejoiced that he hadn't spent the night in the city, thus escaping a disaster.

If the nuclear bomb had exploded any closer, the car would probably have been completely destroyed.

After washing the car, he continued to investigate the radiation levels in other areas of the health center.

The results show that rooftops and drainage ditches are more prone to sediment buildup.

The radiation level is often 3 to 5 times that of open spaces.

In the courtyard, the exposed pools and vegetation are also heavily affected by radiation.

The highest value detected by the Geiger counter was found in the soil of the central courtyard.

The nuclear radiation exceeded 900 microsieverts per hour, almost reaching 1 millisievert per hour.

At this dosage, it is already capable of causing invisible harm to the human body.

You can only stay briefly; you absolutely cannot stop moving forward.

Gu Lang recalled the knowledge mentioned in the protection manual.

Due to its own adsorption, the soil can accumulate radioactive nuclides.

For example, cesium-137 has a half-life of up to thirty years, which can lead to long-term soil pollution.

The southwest wind outside gradually stopped, and then it started to rain.

Gu Lang immediately realized the danger.

Rainwater can accelerate the settling of radioactive particles, and local radiation levels may increase by more than 10 times.

Getting caught in radiation rain is no joke; it can cause acute radiation sickness with a mortality rate as high as 50%.

Dragging the heavy fire hose, he returned to the basement entrance.

A sandbag barrier was built around the perimeter to prevent rainwater from flowing back in.

In the stairwell, I gave myself a full shower and also tested the water-blocking hose.

The water in the fire water tank is not potable because it has been stagnant for a long time.

It contains heavy metal deposits, polluting particulate matter, and various harmful microorganisms.

Designed for fire extinguishing only, it can only be used for rinsing in Gulang.

After closing the iron gate, Gu Lang took off his outer protective suit in the first simple airtight room.

Upon entering the second airtight room, which served as a transition zone, he removed his inner protective suit.

Back in the safe zone of the basement, Gu Lang took out his notebook and started writing.

"July 26th, day 18 of the solar storm, day 3 of the nuclear explosion. Southwest wind, heavy rain. Outdoor time 3 hours, surface radiation level 40 to 900 microsieverts per hour. It is expected that the radiation risk will decrease to a safe level in a few days."

Gu Lang checked the supplies and found that there were still 50 liters of drinking water left.

The amount of water an adult male should drink each day can be calculated scientifically.

30 ml of water is needed per kilogram of body weight.

Based on Gu Lang's weight of 80 kg, the basic water intake is 2.4 liters.

After physical activity, for every kilogram of weight lost, you need to drink an additional 1.5 liters of water.

Therefore, the daily drinking water consumption is 3 to 4 liters.

Current freshwater reserves are sufficient to last for 12 days.

Calculating food consumption is a bit more complicated.

We need to first introduce the concept of basal metabolic rate (BMR).

For men, the calculation formula is:

BMR = (10 × weight [kg]) + (6.25 × height [cm]) − (5 × age [years]) + 5

Gu Lang is 24 years old and 182 centimeters tall.

Therefore, the daily basal metabolic rate is 1822.5 kcal.

This means, under conditions of complete rest.

He needs to consume at least 1822 kilocalories of energy per day to maintain bodily functions.

The basal metabolic rate needs to be multiplied by the activity coefficient to obtain the total daily energy expenditure (TDEE).

The activity coefficient is based on the intensity of daily activities.

The score for sedentary behavior is 1.2, for moderate activity it is 1.55, and for vigorous activity it is 1.9.

Therefore, Gu Lang should not lose weight.

You need to consume at least 2800 kcal of food every day.

The food and ingredients in the basement are all small in size and weight, but high in calories.

After doing the calculations, Gu Lang concluded that there was enough food to last for 90 days.

There were even more supplies that couldn't be unloaded from the truck.

有1000升淡水、30斤燕麦、40斤盐、50斤白菜土豆、50斤麵粉、100斤大米、100斤挂麵、200斤白糖和100升各类食用油。

In addition, there are other food products that can be stored for a long time, such as baking soda, honey, cheese, nuts, and dried mushrooms.

And various canned goods, milk powder, cocoa powder and coffee powder.

If there is no radiation contamination, including these, the food should be enough to last for more than a year.

Gu Lang opened the tea canister and brewed a pot of green tea with cold water.

After finishing the tea, I chewed the tea leaves and swallowed them.

While supplementing vitamins, increase your intake of dietary fiber.

He hasn't eaten any vegetables or fruits for a while, and he's been constipated since yesterday.

The air quality in a closed basement is already poor.

Without proper ventilation, he couldn't possibly waste precious oxygen by cooking.

Neither propane stoves nor wood-fired stoves are currently usable.

After a solar storm, fresh fruit disappeared from the market.

Canned fruit became a high-priced commodity, and he didn't buy it because he thought it was too expensive.

After the nuclear war, he estimated that he would never be able to eat it again.

Another day passed in a daze, and my phone ran out of battery completely.

Bored, Gu Lang emptied his mind and forced himself into power-saving mode.

After an unknown amount of time, the transparent button on the top of the flashlight suddenly flashed a red light.

Users are advised that the internal 18650 battery voltage is too low.

Gu Lang rummaged through his bag and took out a waterproof battery box, then replaced the batteries with new ones.

I turned the flashlight back on, and the light illuminated the dark corners of the basement.

There were piles of discarded wooden crates and broken medical equipment, which were gleaming.

He rushed over to check and found that the metal equipment was indeed covered in water.

"The basement is still leaking."

Gu Lang sighed; he had been mentally prepared for this.

Upon entering the basement, there were obvious water stains on the walls.

He just didn't expect it to happen so quickly; it had only rained for one day and it had already reached this extent.

When you bring the Geiger counter close to a puddle, the numbers on the screen start to spike.

It eventually stopped at 200 microsieverts per hour.

Gu Lang immediately rummaged through the basement and pulled out several huge black bags.

The bag is made of PVC material and has a waterproof zipper for sealing.

It also features a handle for easy carrying.

If I'm not mistaken, it should be a body bag.

Sometimes, the "items" in a body bag are not completely intact.

Therefore, body bags have many advantages such as leak-proof, strong sealing, and high load-bearing capacity.

He tried his best not to think about what had been in the bag; at least it looked quite clean to the naked eye.

Whether it has been used or not, it must have been cleaned and disinfected before being stored.

In the current situation, it is perfect for storing supplies.