A pall of smoke shut out the sun from the city.
None wore face masks, despite a pall of silica dust in the air, and some said they had not showered in years.
In the image, Moscow is hidden under a pall of smoke.
A sudden, dramatic tragedy cast an overhanging pall of gloom.
A pall of smoke hung over the city.
An unvaried pall of cloud muffled the whole expanse of sky from zenith to horizon.
A pall of oily black smoke drifted over the cliff-top.
The great pall of the city's smoke hangs wearily above the valley.
