Vietnam ثاني أكسيد الكبريت (SO₂) المستوى

1.

Cao Bang, Cao BaNg

جيد

5xbelow Standard

2.

Bac Giang, Bac Giang

جيد

8xbelow Standard

3.

Thanh pho Thai Nguyen, Thai Nguyen

جيد

8xbelow Standard

4.

Phu Ly, Ha Nam

جيد

8xbelow Standard

5.

Vinh, Nghe An

جيد

8xbelow Standard

6.

Lang Son, Lang Son

جيد

8xbelow Standard

7.

Ha Long, Quang Ninh

جيد

8xbelow Standard

8.

Pleiku, Gia Lai

جيد

8xbelow Standard

9.

Bac Ninh, Bac Ninh

جيد

8xbelow Standard

10.

Ho Chi Minh City, Ho Chi Minh

جيد

8xbelow Standard