The three of them walked over, and Jia Ru found that the person wearing a white coat turned out to be a well-known local environmental protection expert, Professor Xu Guohui.

Xu Guohui was invited by Huang Zhaoyuan with great effort, and every move was under the camera.

"Xiao Huang, come and have a look." Xu Guohui held the test tube, which contained some blackened turbid liquid.

"Hey." Huang Zhaoyuan responded, and ran over without saying hello to Jia Ru and Deng He.

"This little yellow bark is like when I call my grandmother's dog in the countryside." Deng He said in a mocking tone, "Xu Guohui's character of relying on the old and selling the old has not changed, and the whole person is arrogant, a typical old pedant that I hate." ”

Jia Ru glanced at Deng He, Xu Guohui is a real professor, maybe he can learn something.

With this thought in mind, Jia Ru also walked over.

Xu Guohui is adding a pH tester, a very commonly used water quality test reagent, to the test tube, which can detect the pH level of the water by changing the color.

Reagents are added and soon the liquid in the tube reacts.

"The water in this river is very alkaline." Xu Guohui touched the slag and turned his gaze to the Lailing River.

The Lai Ling River is the mother river of the city, and people here have relied on it for hundreds of years to survive until the pollution is getting worse and worse, and people have to drink tap water.

There are a number of large staircases on both sides of the river, which were specially built to make it easier for many people to wash their clothes here.

There are many living quarters along the Lai Ling River, and the elderly prefer to come to the river to wash clothes and chat.

It was morning, and the old men were putting their washed clothes in a basin and pouring the sewage into the river.

Everyone looked at this scene, and Xu Guohui snorted coldly: "Now, everything is very clear, right?" How harmful is the laundry detergent and soap used in laundry to discharge these domestic sewage into the Lailing River? ”

Everyone suddenly said yes.

Everyone thinks that what Xu Guohui said is very right, even Huang Zhaoyuan patted Xu Guohui's ass with a smile on his face, this matter, as long as the reason is investigated, it will be handed over to them to run.

Only Jia Ru frowned.

Xu Guohui is right, but the discharge of domestic sewage will have a certain impact on the environment, and in the long run, it will be the extinction of the Lailing River. However, according to Huang Zhaoyuan yesterday, the Lailing River has suddenly become more polluted in recent times, which should not be caused by domestic sewage.

"Professor, I think your conclusions are coming a little too fast."

"You are?" Xu Guohui frowned and looked at the young girl in front of him.

"Oh, Professor, let me introduce her, she is a researcher at Xinmin Biotechnology, Jia Ru." Huang Zhaoyuan hurriedly introduced.

When Xu Guohui heard that the other party was just a researcher, he immediately made a straight face: "Researcher Jia, do you have any objections to my conclusion just now?" ”

Jia Ru shook his head: "The professor's conclusion is very correct, the current situation shows that the discharge of domestic sewage has indeed caused the water quality of the Lailing River to be destroyed. However, I don't think that domestic sewage alone can make such a big difference in a short period of time. ”

"And what do you think is another reason?" Xu Guohui's gaze sharpened.

Jia Ru nodded.

"Tell me, then, what is the reason for the sudden increase in river pollution?"

Jia Ru shook her head: "Without analysis and testing, I can't come up with a specific conclusion for the time being." ”

"Hahaha!" Xu Guohui laughed, "Little girl, just graduated from school, you have to talk less, watch more, and learn more, didn't your teacher teach you?" ”

"My teacher also taught me that scientific researchers should have a rigorous attitude and not jump to conclusions."

was bumped into by Jia Ru, Xu Guohui immediately began to blow his beard and glare: "Xiao Huang, what are you looking for this kind of person?" ”

Huang Zhaoyuan's face was bitter, he didn't expect Jia Ru's temper to be so strong, Xu Guohui dared to contradict it.

Pulling Jia Ru, Huang Zhaoyuan smiled at Xu Guohui: "Miss Jia was introduced by my friend to learn from experience." ”

After all, Huang Zhaoyuan is still in charge of the program team, and he is naturally not good at what Xu Guohui is saying when he says this: "Next time, I don't want any messy people to come over, since the reason has been found, I will leave first if I have something." ”

Seeing Xu Guohui leave angrily, Huang Zhaoyuan could only smile bitterly.

"Auntie, why are you contradicting him?" Huang Zhaoyuan looked at Jia Ru with a sad face.

"I'm sorry." Jia Ru said with a flat face.

"If, I knew you had invited this old pedant, I wouldn't have come." Deng He, who was standing on the side, also spoke.

"Okay, okay, you cows, anyway, the reason has been found, let's withdraw."

Huang Zhaoyuan beckoned everyone to pack up their equipment and leave, and Deng He whispered to Jia Ru, "Let's go too." ”

Who knows, Jia Ru shook his head: "This matter has not been resolved yet." ”

"Huh?" Deng He looked at Jia Ru suspiciously.

Similarly, a tube of samples was taken out of the lake water, and Jia Ru added a reagent to it, and the color of the lake water quickly began to change.

"You say, is there such a large amount of lead in the laundry detergent, or in the drainage of the surrounding residents?"

"You mean......" Deng He looked at Jia Ru with a guess in his mind.

Jia Ru shook his head lightly: "It's not certain yet, I need more sampling and analysis." ”

"Then do you want to tell Huang Zhaoyuan about this?"

"Don't use it for the time being, let's secretly check it first, and then tell him the results."

"Hey, why don't you two leave?" At this time, Huang Zhaoyuan shouted in the distance, "I'll invite you to dinner later." ”

Deng He found that the staff of the program team had packed up and left, and Huang Zhaoyuan seemed to be waiting for them.

"I'm going to talk to him." Deng He said to Jia Ru.

After a while, Deng He ran back with something in his hand.

Jia Ru was collecting water samples in different sections of the river and asked with some confusion, "What is this?" ”

"Sony small camcorder, record your beauty all the way." Deng He said with a smile.

Jia Ru knew that he wanted to help Huang Zhaoyuan, so he didn't say anything.

The Lailing River is very long, but the heavily polluted areas are mainly concentrated in the middle and lower sections, so Jia Ru selects ten points for sample collection, and then preserves the collected samples.

Deng He held the camera and kept shooting: "Is it over?" ”

"I'm also going to look at the plants nearby, after all, they also grow on the water of the Leyling River."

Most of the plants along the Lai Ling River are landscape plants, and most of them are evergreen all year round.

However, in Jia Ru's eyes, these plants, which are all green on the surface, have obvious color differences, especially blue-white, silver-white and another uncommon color.

Jia Ru hurriedly collected the plant samples into a petri dish and kept them, and then walked towards the lower section.

Jia Ru, who was all focused on the plant, immediately felt that something was wrong at this time......