Check out this link to see current air quality conditions for New York City and past and future air quality forecasts. This website by the US government program AIRNow shows the level of Air Pollution for two major pollutants (Particulate Matter and Ozone) and has detailed information about these two pollutants and past and current air conditions.

Air quality is important for many environmental-related respiratory illnesses, including asthma, and knowing the air quality forecast in your neighborhood can help you better plan your day.

If you want more check out this visual website by the New York State department of Environmental Conservation for air quality measurements from 5 locations in Manhattan including three above 125^th street.