Daily Air Quality Index · Astoria, Queens · last 5 years

Every day of air Astoria has breathed

One square per day, colored by that day's EPA Air Quality Index. The default is measured — the readings AirNow publishes from the monitor network, the same numbers local air quality apps and health advisories report. Switch to modeled to see what a global forecast model made of the same days; it disagrees, sometimes by a whole band. Hover any square for the day's numbers.

The window at a glance

Everything on this page responds to the year filter above.

The calendar

Each column is a week, each row a weekday. Gray squares are days the archive does not cover. The bar above each year is that year's mix of AQI bands.

What the data says

Findings recomputed from whichever years are selected.

Seasonality

Mean AQI for every month of every year, on the same color scale as the calendar. Air quality in New York is a summer story.

What drives the index, by month

Share of days each pollutant set the day's AQI.

Distribution of daily AQI

How many days landed in each 10-point band.

Mean AQI by day of week

Traffic has a weekly rhythm; the air records it.

The worst days on record

Ranked by daily AQI across the selected years.