Air quality labeled ‘unhealthy’ at Tolgoit, MNB and Amgalan

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Real-time Air Quality Index readings as of October 15, 3,00 p.m.

Air pollution across Ulaanbaatar is gradually worsening as the weather gets colder, according to real-time air quality indexes.

The Real-time PM2.5 Air Quality Index labeled air pollution levels around Tolgoit, MNB, Amgalan and Nisekh as “unhealthy” on Sunday morning. The level of PM10 particulates hit 394 micrograms per cubic meter and PM2.5 level reached 331 micrograms per cubic meter at midnight in Tolgoit area, which is one of the most polluted areas in Ulaanbaatar with PM2.5 levels ranging between 1,000 and 2,000 micrograms per cubic meter in previous winters. The index has been continuously showing “unhealthy” sign since.

By 3:00 p.m. on October 15, the “moderate” level of pollution sign was lighted in Tolgoit, Nisekh, Bayankhoshuu, and MNB air quality monitoring stations, except at the Amgalan station where the air pollution remained “unhealthy”. At the time, the reading displayed that the PM10 particulates reached 114 micrograms per cubic meter, while PM2.5 reached 95 micrograms per cubic meter.

Below are the highest readings recorded from October 14 at 0:00 a.m. to October 15 at 3:00 p.m.

Location

PM10

(mg/m3)

PM2.5 (mg/m3)

Tolgoit 394 331
MNB 233 261
Amgalan 171 189
Nisekh 738 305
Bayankhoshuu 139 197

Below are the average readings from October 14 at 00:00 p.m. to October 15 at 3:00 p.m.:

Location PM10 (mg/m3) PM2.5 (mg/m3) PM-1

(mg/m3)

CO

(mg/m3)

SO2

(mg/m3)

NO2

(mg/m3)

NO

(mg/m3)

O3

(mg/m3)

Tolgoit 140 90 85 1593 25 31 8 36
MNB 126 77 70 1804 43 38 32 25
Amgalan 109 48 40 857 13 32 18 40
Nisekh 182 78 65 922 4 13 10 18
Bayankhoshuu 62 33 N/A N/A 9 N/A N/A N/A
Standard level (MNS 4585:2016) 100 50 50 50

 

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