These winds also carry the pollution created here to New York, Connecticut and further to the northeast. Weather can also affect how quickly pollutants move away from an area. Normally, pollutants rise or blow away from their sources without building up to unsafe amounts. But imagine what could happen if the air was trapped inside a giant box. The pollutants can't escape, and after a while they may build up to unhealthy levels.
Inversions can even occur on clear summer nights.
This can affect the next day's ground-level ozone concentrations. Usually, inversions are accompanied by light or calm winds, which keep the different temperature layers of air from mixing. You can check the current atmospheric profile above Rutgers University , which is a display of the winds and temperatures above New Brunswick.