Worst air pollution Downtown New Castle - New Castle, today and tomorrow

Today (30 August): Air quality in Downtown New Castle is moderate. AQI, NO2, and O3 are moderate; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 AM (NO2: 47.3/100).
Tomorrow (31 August 2026): Air quality in Downtown New Castle is moderate. O3 decreases to fair; all other pollutants stay as today. Pollution peaks around 12:00 AM (NO2: 41.5/100). Airmine updates local air quality forecasts four times daily.

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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

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Air quality at Downtown New Castle, the city's compact courthouse-square downtown, generally follows the pattern seen across New Castle, shaped by the same local and regional factors. Local traffic and immediate surroundings can shift day-to-day readings slightly from the citywide figure.

Today - 30 August | Pollution peaks at 00:00

AQI:

Moderate

47.3/100

PM2.5 (fine particles):

Good

14.7/100

PM10 (coarse particles):

Good

11.3/100

NO2 (nitrogen dioxide):

Moderate

47.3/100

O3 (ozone):

Moderate

41.8/100

SO2 (sulfur dioxide):

Good

13.9/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

3.6/100

PM1 (ultrafine particles):

Good

10.5/100

Levels show the poorest local air quality during the day

Tomorrow - 31 August | Pollution peaks at 00:00

AQI:

Moderate

41.5/100

PM2.5 (fine particles):

Good

18.3/100

PM10 (coarse particles):

Good

14.2/100

NO2 (nitrogen dioxide):

Moderate

41.5/100

O3 (ozone):

Fair

30.5/100

SO2 (sulfur dioxide):

Good

8.3/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

3.3/100

PM1 (ultrafine particles):

Good

10.5/100

Other Landmarks in New Castle

Frequently Asked Questions

Is air quality bad in Downtown New Castle right now?

On 30 August 2026, overall air quality in Downtown New Castle is moderate. AQI is the main air quality indicator at 47.3/100. Pollution peaks around 12:00 AM (NO2: 47.3/100).

Will air quality be worse tomorrow in Downtown New Castle?

On 31 August 2026, air quality conditions in Downtown New Castle will be similar to today, with AQI forecast at moderate at 41.5/100. Pollution peaks around 12:00 AM (NO2: 41.5/100).

When is air pollution at its worst in Downtown New Castle?

Air quality around Downtown New Castle changes with the seasons. Typically, a brief stretch in early autumn is often the year's cleanest, once summer ozone season fades, while extended stretches of summer humidity, combined with light winds, tend to bring the worst air of the year. Fast-moving weather systems typical of the region usually keep pollution from lingering too long.

Are air quality levels in Downtown New Castle based on measurements or forecasts?

It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.

Why doesn’t the forecast always reflect wildfire impacts?

Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.

During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.

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Data provided by Airmine — Last update: 30 August 2026 at 14:32 CEST (Data is updated four times daily.)

This forecast is produced independently using Airmine's own atmospheric data and models.

Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.

Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.

Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.

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