Chapter 20 — The City Has No Smell

One year after the valve number 3 incident, Song Say no longer uses the phrase "city without smell" in its advertising signs. Not because the smell has completely returned. Some factories changed their processes, some treatment tanks were covered, truck routes changed hours, and Clean Class only operates according to publicized regions and conditions.

On the riverside screen, the new sign reads “WHAT IS THE REED RIVER LISTENING TODAY?”. Below are four boxes: detected odors, low gas conditions, reported symptoms, and insufficient data. Each box has the date and time, source, person in charge and review time.

Not everyone on the street reads. Some people browse, some take photos, some complain that the city used to have a simpler number. But no one is allowed to use the number 0 to speak for every body anymore.

Huyen still works at the Urban Sense Center. She was no longer known as the sole Clean Class caseworker. The new council has eighteen members, including Nghi, Ly, a worker who has lost his sense of smell, a teacher, Van, Tung and two rotating students. Tu does not sit in meetings every time, but the warehouse is a unit recorded in the regulations.

Huyen still has days when she smells wrong. After a cold, she couldn't distinguish between the smell of damp earth and metal for two days. She reported her sensory state before participating in any testing sessions. No one sees that as weakness. The system only changes testers, checks controls and clearly states the conditions.

Tung moved to the design and training group. He did not leave the maintenance team. Every week, he still goes down to the station, listens to the valve by hand and reads the appendix out loud. Minute storage is installed at all twelve stations, not because every station has failed, but because data should not wait for a failure to become important.

Ly was paid for worker training sessions. She begins each session by saying, “If it doesn't smell, don't second-guess yourself.” She then teaches shift mate checks, heat, pressure, masks, exits, and personal machines. Someone asked what the nose is still used for.

"Used to recognize when it recognizes. Not used to free you from all the rest."

Nghi expanded the fish sauce counter. She did not become the city's advertising icon. She hates people who want to take pictures of fish sauce jars next to the slogan "preserving identity". She just opened a small shelf to write down the names of the smells: dated anchovies, overheated fish, old frying oil, mud after rain, detergent stuck on the lid, unknown.

Her granddaughter studies food testing at vocational school. The two of them still argued because Nghi used the word "living smell" and the girl wanted to use chemical terms. Finally, on the board there are both. One line for the buyer, one line for the testing lab. Neither side has been erased to make the other look more modern.

Van built an electronic health diary with anonymous mode. People can record symptoms, time, location, activities, medications and things they don't smell. The system does not infer disease on its own. It only sends warnings when multiple signs are close together, then asks a doctor to check. Van still reminds that the number of people without symptoms must be saved with the number of people with symptoms.

“If we just keep the cases, we will keep the city sick on paper,” she said.

An is eighteen years old, studying audio engineering and still fixes radios with his father on the weekends. He no longer draws a single map. He made a paper-electronic application that allowed people to overlay layers: wind direction, smell, symptoms, spray schedule, traffic and where to stay. The interface does not use red as a danger level; The user must read the symbol and time.

Huyen asked why he didn't make an application to draw his own conclusions.

“Because I saw a machine that answered faster than a human.”

An still has asthma attacks. One day he had to skip class. But he was no longer asked to identify which substance was causing his shortness of breath before being recorded. His map is hung at school, next to the medical station's phone number and the environmental update schedule.

At the age of seventy-one, the warehouse moved to the old cultural house. He kept the glass jars, but added descriptive audio recordings and indicator lights for people who can't smell. A small room is called an "empty room". There is no fragrance in it. People come in and sit for five minutes, writing what they notice when there is no smell. Some people feel worried. Some feel peaceful. Some discovered that they had never paid attention to the sound of the fan.

Tu does not check answers. He only recorded it with the date and context.

“Does this warehouse help keep the city safe?” a reporter asked.

“Not directly,” Tu said. “It helps the city feel less arrogant about what it calls safety.”

Quynh is still the project leader, but her title has changed to sensory environment and safety coordinator. She no longer stands in front of the camera saying the city is clean. When asked if Clean Class was successful, she gave four answers depending on the criteria: reducing unpleasant odors in some areas, not replacing source treatment, creating blind spots in heat inversion, and being operated with multiple layers of monitoring.

Some people said she spoke as if she were making things difficult for herself. Quynh replied: "A public program doesn't need to look perfect. It needs to let people know when to ask."

On the first anniversary of the incident, the city did not hold a ceremony. The Council opened a practice session in the market. Everyone measures odor, temperature, wind direction, spray flow, symptoms and time. A strong smell of fish sauce appeared next to the gate, and at the same time an oil truck passed by. The meter reports two different directions. Nghi asked everyone not to jump to conclusions.

"Record first. Argue later."

Huyen gave An a sensory card. He stood far away from the nozzle, used an inhaler when needed, and then marked the area where he could breathe easily. Tung checks the flow at low altitude. Van wrote down those who were teary-eyed. A new worker asked if it needed to say “no odor.”

“Need,” Huyen said. “No smell is also a condition.”

At the end of the session, the data sheet did not point to a culprit. It showed that the truck produced an oil peak, the fish sauce odor was unpleasant but not associated with symptoms, the spray reduced the ability to detect mid-range, and the wind changed every twelve minutes. The instructions sent do not say who is right. It tells which sections to avoid, which direction to open the door, where to keep the medicine and when to review it.

On the way home, An asked Huyen if she still had the blank piece of paper.

"Have."

“Have you smelled it yet?”

“The paper is still white.”

“So what does it do?”

Huyen thought. “It reminds you not to wait for something to speak for itself.”

An nodded, then looked out at the river. The water has a slight muddy smell. He didn't like it, but he didn't want the city to delete it just to make a pretty photo.

That afternoon, Huyen returned to the Center. The odor testing room has an additional screen showing outdoor conditions, a vibrating box for non-smelters, and a mandatory “cannot be evaluated” box. She took three control vials. Orange peel, moist soil, low solvent. Her nose Recognize the first two bottles. The third bottle arrived later than usual.

Huyen recorded correctly. She didn't call it her body's fault, nor did she call it proof that she alone was untrustworthy. She called a second tester, opened the air vent, checked the time and started again.

Outside the window, the Reed River moves with things that cannot be captured on screen: the smell of fish, the sound of pumping, lights, humidity, a person coughing, a person not coughing, a valve being repaired and a notice board longer than before. The city could still be wrong. But now, when someone sends a blank piece of paper and says their throat knows something's wrong, the first answer is no longer "it doesn't smell so it's okay".

They asked: when, where, who felt what, what the machine recorded, what was unknown, and what to do in the next fifteen minutes.

The city doesn't take back all the smells. It takes back the right to name what you do not understand.

At the end of the year, the center organizes a training session for other cities. Huyen was invited to talk about the method, but she did not present it as a success story. She posted three maps: the map before the incident, the map on the night the valve jammed, and the map after the system fixed it. Each copy has a blank space.

“This is the part we don't know,” she said. "It's not a presentation error. It's part of the conditions of the decision."

One attendee asked if the entire protocol could be purchased. Huyen Bao can use the form, but must adjust it according to the terrain, occupation, body and how people receive notifications. No city can copy a color scheme and call it inclusive.

Tung stood at the back of the room and gave her a recording of valve number 3 before and after repair. The old hissing sound was prolonged, the new sound was more compact. Huyen listens, doesn't say which one is "clean". She only recorded the date, location and recipient.

Nghi brought up a small jar of fish sauce and did not leave it open. She told participants to smell if they wanted, but they had to write down the level of discomfort and the context. Some people laughed. Then they realized they had started talking about smell as an experience instead of an ethical label.

Tu did not come. He sent a white card, the back of which read: "People who can't smell still need to be warned." An puts the card in the empty room. He learned how to use his inhaler without shame, how to rest when his body told him to, and how to let someone else continue drawing the map when he couldn't go out.

In the afternoon, Huyen returned to the testing room. She opened the window, heard the sound of the river and the slight smell of mud. The city is more imperfect because she recognizes it. She just had one more way to know where she was.

On the table, white paper is pressed in a glass frame. There are no new words. But next to it is a small table: time received, sender, question created, changes since then and what's still pending. A seemingly uninformative object became the record of a city that learned not to ignore the void.

Huyen turned off the lights and locked the door. On the street, some people complained about the sewer smell, some said they couldn't hear anything, some sent photos of the meter, some just wrote "heavy chest at 7 p.m." All delivered to the right place.

The city doesn't take back all the smells. But from now on, no one has to prove their existence with a single device.