What Is the Air Quality in Hudson, New Jersey?

Hudson, New Jersey earns a B — air quality is reliably in the safe range for most residents most of the time, with a 5-year median AQI of 44. Sensitive groups will see occasional caution days, but the typical resident will not need to change behavior based on air quality.

Hudson, New Jersey's 5-year median AQI of 44 is 3 points above the national average of 41 — meaningfully more polluted than the typical U.S. metro tracked here. Within New Jersey, Hudson, New Jersey's air quality is roughly typical for the state, where the average city posts a 5-year median AQI of 42.

For context within New Jersey: Atlantic, New Jersey currently holds the state's cleanest grade (B, AQI 38), while Essex, New Jersey sits at the bottom (C, AQI 45).

Air quality in Hudson, New Jersey has been improving over the past decade, with median AQI dropping by roughly 0.9 points per year. That is consistent with the broader national pattern — most U.S. metros have seen steady reductions in particulate and ozone pollution since the 2010s as cleaner vehicles and power plants come online.

In 2014, Hudson, New Jersey posted a median AQI of 52. By 2023 that figure was 44 — a drop of 8 AQI points cleaner across 10 years of EPA records.

Across the past five years, this area has logged just 10 days where AQI rose into the "Unhealthy for Sensitive Groups" range or worse — about 2 days per year, or roughly one every other month. That is a low count by national standards.

For most healthy adults, current air quality in this area does not require any change in behavior. People with severe asthma, COPD, or recent cardiac events should still keep an eye on daily AQI alerts, especially during wildfire season. Because PM2.5 penetrates deep into the lungs and bloodstream, an N95 or KN95 mask provides meaningful protection on smoky or high-particulate days — surgical masks do not.