Riyadh Region الأوزون (O₃) المستوى

1.

Jeddah, Makkah Province

جيد

1xbelow Standard

2.

Medina, Al Madinah Al Munawwarah

جيد

1xbelow Standard

3.

Jeddah, Makkah Al Mukarramah

جيد

1xbelow Standard

4.

Makkah Al Mukarramah, Makkah Province

جيد

1xbelow Standard

5.

Yanbu, Al Madinah Al Munawwarah

جيد

1xbelow Standard

6.

Hail, Ha Il

جيد

2xbelow Standard

7.

Buraydah, Al Qasim

جيد

3xbelow Standard

8.

Hail, Hail

جيد

3xbelow Standard

9.

Riyadh, Riyadh Region

جيد

7xbelow Standard

10.

Ad Dammam, Ash Sharqiyah

جيد

25xbelow Standard