The boat boss is a descendant of the fishermen who grew up on both sides of the Qingcao River. For generations, his ancestors have made a living by fishing in the Qingcao River.

The boat boss has several boats and enough people under his command, and he goes back and forth in the green grass river every day to catch fish and shrimps.

The shipping boss then contacts the parallel import boss in Beijing to sell the goods. This is a stable supply chain that has not gone wrong for many years.

"Master Mu, General Luo, Boss Yang, Boss Wang, and the younger generation have relied on the Green Grass River to support their families,"

"Everyone in this whole village relies on fishing for a living. Thanks to Boss Yang and Boss Wang, they are willing to buy our fish and shrimp."

"We are doing conscientious business. We really don't dare to mess around with fish and shrimps. Wouldn't that be ruining our own livelihood? I beg you two adults and two bosses to learn from this!"

The boss of the ship was so frightened when he faced Yang Ruoqing and others who came to the door that he collapsed to the ground.

Boss Wang stood behind Yang Ruoqing, with cold sweat on his head.

Mu Zichuan pondered for a while and asked the boat boss: "Are there any villagers suffering from strange diseases in your village?"

The boss of the ship thought for a moment, nodded and said, "Five of them are sick."

Mu Zichuan then looked at Yang Ruoqing, "Logically speaking, this village is full of fishermen and should eat more fish and shrimp than elsewhere. Why is the proportion of sick people not higher compared to other places?"

Yang Ruoqing had been thinking, but now she heard him ask and came back to her senses.

"I can't answer this question for you yet," she said, casting her eyes on the ship's boss.

"Where do people in your village get their water? Wells or this green grass river?" she asked.

Chuanlao Dadao: "They all come from the Green Grass River."

Yang Ruoqing said: "Let's go, take us to the river."

The group soon arrived at the Green Grass River, where lovely pebbles were everywhere on the river beach.

The river passes here, with blue sky, white clouds, and clear water. Under the clear water, strips of green water plants stretch out in the water waves.

"The name Qingcao River is so apt. It's a great place."

Looking around, Yang Ruoqing couldn't help but praise.

The boat boss rubbed his hands in embarrassment and said: "To be honest with Boss Yang, our ancestors have grown up eating this river water for generations, and all the young people in the village have strong bodies."

"If this strange disease really comes from here, not to mention me, the whole village will not be able to figure it out!"

"How could such a beautiful river suddenly change? Even when we were eating and washing clothes, we didn't feel that the taste had changed..."

The captain of the boat was sighing from the side.

Yang Ruoqing walked along the river and looked, and then she stopped at a certain place.

"Tangyaozi, go get a ladle of water," she said.

Luo Fengtang nodded, took out the bowl he had prepared in advance, scooped out a bowl of water and brought it to Yang Ruoqing.

Yang Ruoqing took out a silver needle and put it into the water. After a while, she took it out again. There was no difference.

"How's it going?" Muzichuan also came over and asked.

Yang Ruoqing said: "There should be no problem with this water."

"The boat boss also said just now that the people in his village have been drinking this water, and only five or six families have gotten sick."

"So, it's determined that the problem is not in the water, but in the fish and shrimp in the water."

Hearing her words, the captain's heart suddenly sank to the bottom.

"How could this happen?" He murmured, "As for the fish and shrimp, I also ate them, so why didn't I get sick?"

Yang Ruoqing said: "What kind of fish and shrimp are you eating? Big fish and shrimp, or small fish and shrimp?"

The boss of the boat smiled bitterly and said: "You can buy big fish and shrimp at a good price, so why are you willing to eat them?"

"What I eat are all those small shrimps, small hairy fish, etc. that can't be sold."

"However, those sick villagers ate big fish."

"Because that time, a family had relatives come over, and they entertained the relatives with big fish and shrimps."

"In our fishing village, only when relatives come over will we be willing to serve big fish and prawns. Usually we are reluctant to eat them ourselves..."

The ship boss's words suddenly awakened Yang Ruoqing.

"I know what's going on!" she said suddenly.

Everyone around him gathered around.

Yang Ruoqing said: "If I'm not wrong, there must be something poisonous in the river water, because the river water is flowing, so the poison is diluted."

"Everyone, please drink this water, because the toxins are very small and will not have any impact on your body."

"It's not a big problem if you eat some small fish and shrimp."

"But as long as you eat big fish or something, you may get sick."

"This is because small fish and shrimps survive in the water with diluted toxins, and a certain amount of toxins have accumulated in their bodies."

"This is a tiny amount, and it won't have a big impact if people eat it."

"Then the small fish and shrimps are eaten by the big fish, and these toxins accumulate and precipitate little by little in the body of the big fish."

"Quantitative changes lead to qualitative changes. At a certain point, too many toxins have accumulated in the body of this fattened fish, which will undoubtedly become a big cancer."

"When big fish are caught and then made into dishes and served on the table, what you eat with each chopstick is not fish, but cancer. It would be strange if you don't get sick!"

After listening to Yang Ruoqing's detailed explanation, everyone suddenly understood.

Muzichuan asked Yang Ruoqing in surprise: "Can I go back now and report this discovery to the Holy One?"

Yang Ruoqing said: "You go and report it now. The Holy One has issued an imperial edict to temporarily stop the supply of fish and shrimp in this area of ​​Qingcao River. This is very simple."

"However, if the toxins in the river are not found, the problem will be treating the symptoms but not the root cause."

Luo Fengtang said: "Qing'er is right, we must find out where this toxin comes from. Is it man-made poisoning? Or something else? Is it related to the Black Lotus Sect?"

Yang Ruoqing said: "Judging from the symptoms of those patients, they should be suffering from Minamata disease."

"If it's Minamata disease, it must be the toxin that's causing the problem."

"Really? What kind of toxin is that?" Mu Zichuan quickly asked again.

Yang Ruoqing glanced at him and said: "Mercury!"

"Mercury?" Mu Zichuan looked confused, "What is mercury?"

Yang Ruoqing said: "In order to pursue immortality or prolong life, many Taoist priests will practice the golden elixir."

"To make elixirs, you need to use mercury."

"Zichuan, Tangyazi, you go and check if there are any Taoist temples nearby..."

"No need to check. I know best that there is no Taoist temple nearby!" the boat boss said.

"I grew up in the Qingcao River area since I was a child. I know exactly where there is something extra and what is missing."
Chapter completed!