Is it just "fog"?
Or perhaps "mist"? As mentioned earlier, the relatively grim vista on Sunday morning -- Earth Day! -- could have been affected by weather that led to rain on Sunday afternoon. And today, Monday, it's actually bright and pretty outside. But a friend reminded me of what the cityscape looked like (from a higher floor in the same building), not long ago on a dry day. He calls his picture, below, "Shanghai Sunrise," since he was looking east toward the daybreak over Pudong. It features a sun whose color can't easily be explained by "mist" or "fog."