Image description: an AQI scale that shows “173 - Unhealthy. Air quality index is 173, which is worse than yesterday at about this time.”
Image description: an AQI scale that shows “173 - Unhealthy. Air quality index is 173, which is worse than yesterday at about this time.”
In Chicago, I started the night with a clear view of the Sears tower. Throughout the night it became more obscured until I couldn’t see any of it.