We can see across the Hudson Valley more frequently, and many airborne contaminant concentrations have fallen. But air quality has become a pressing issue indoors as much as outside. We still hack, fall asleep in class, or complain about breathing at work. But we can take steps to help ourselves. There are some easy things to consider in order to improve indoor air.
Smoking is a leading contributor to poor indoor air quality.
We can often review such things quite easily and take immediate steps to improve our own indoor spaces. Only more complicated cases require outside help. The technical field of Indoor Air Quality is relatively new. Precise legal thresholds for temperature, humidity, carbon dioxide, or biological contamination have been difficult to establish because background concentrations are always present. Thus, deciding when indoor air quality is degraded is, in part, a function of personal sensitivity.