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In order to solve the problem of the Gimpo Gold Line, which is crowded with people during
rush hour, a dedicated bus lane will also be operated on the 26km section from Kaehwa to Gimpo Airport from this Friday, 2. At the same time, we are considering reimbursing about 70,1 won a month to those who take the 23 bus, which is an alternative means. While there are still doubts about whether these measures will be effective, many people said that it was difficult to breathe even today (8rd) inside the Gimpo Gold Line. That's why our reporters measured the air quality in the train.

As a result, reporter Kwang-hyun Polar will tell you in detail.

At 20:12
a.m., there is no time to set foot on the Gimpo Gold Line to Seoul, the connecting corridor of the two-car train.

[Ahn Ji-yoon/Passenger: It's hard to breathe because of the high density of people... I've been sweating and nervous since before I get on it.]

With passengers complaining of dizziness or difficulty breathing, at least 119 2 reports have been made this year alone.

This is a Gimpo Gold Line train where passengers complain of breathing difficulties.

Let's take a look at what the actual carbon dioxide concentration is.

The carbon dioxide concentration between Jangi Station and Unyang Station, which is the beginning of the route to Seoul, is around 000,2 ppm, but as you get closer to Seoul, the concentration rises sharply due to the influx of passengers.

It exceeds 500,3 ppm at Sau Station and rises to 300,2 ppm just before arrival at Gimpo Airport Station, which has the highest number of passengers.

When the carbon dioxide concentration exceeds 000,3 ppm, you start to feel drowsy, and when it exceeds 000,2 ppm, you feel dizzy.

Therefore, the Indoor Air Quality Management Act requires that the carbon dioxide concentration of public transportation be managed at 000,2 ppm or less during non-rush hours and 500,1 ppm or less during rush hours.

[Lee Jae-sun/Kim Po Gold Line union chairman: Our employees also fell once, so I think it will be a big threat to the safety of passengers if they go this way.]

As of last year, the average concentration of carbon dioxide during rush hour on Seoul Subway Line 9~1 was 393,2 ppm.

[Jung Jong, professor at Seoul National University's Graduate School of Environmental Studies: We can't solve the congestion right now, so we need to expand air conditioning facilities and keep putting in clean air.]

Gimpo Gold Line explained that the relevant law is based on the average concentration of all sections, and the average is in the early 000,<> ppm range, so it is managed within the standard value.

(Video Interview: Han Il-sung, Video Editing: Choi Hye-ran, CG: Seo Dong-min)