Smog Over Juarez

Early in the morning on days of calm wind, the sun climbs over the mountains to the east of Juarez / El Paso, and tries to pierce the thick layer of smog over Juarez:

But it fails, and does so with superlative success - note how the  mountains on the right fade into a thick streak of smog, to the extent that that the gradual descent of said mountains on the left is completely obscured:

And these were taken at least 15 miles to the east of the city centers:

Ewww.