City

Number of samples of TSP (24 h)

Number of days above the concentration limit value

(210 µg/m3)

Does the site meet the proposed air quality criteria?

50 or less

51 or more

Agua Prieta

x

6

No

Nogales

x

38

No

Puerto Peñasco

x

29

No

Hermosillo

x

3

No

Guaymas

x

1

No

Obregón

x

21

No