Cao BaNg ไนโตรเจนไดออกไซด์ (NO₂) ระดับ

1.

Vinh, Nghe An

ดี

1xbelow Standard

2.

Tra Vinh, Tra Vinh

ดี

1xbelow Standard

3.

Ho Chi Minh City, Ho Chi Minh

ดี

1xbelow Standard

4.

Phu Ly, Ha Nam

ดี

2xbelow Standard

5.

Da Nang, Da Nang

ดี

2xbelow Standard

6.

Pleiku, Gia Lai

ดี

2xbelow Standard

7.

Hanoi, Ha Noi

ดี

2xbelow Standard

8.

Thanh Xuan District, Ha Noi

ดี

2xbelow Standard

9.

Quy Nhon, Binh Dinh

ดี

3xbelow Standard

10.

Thanh pho Thai Nguyen, Thai Nguyen

ดี

3xbelow Standard