Air quality worsening across the Northeast
As of Friday, June 6, air quality continues to deteriorate across several regions of the United States, primarily due to a renewed influx of smoke from Canadian wildfires. This pattern, driven by upper-level winds, is steering smoke into the Great Lakes region and the Northeast, leading to air quality advisories in multiple states.
The National Weather Service has issued alerts for much of the Midwest, including Nebraska, Wisconsin, Indiana, and Michigan, as well as for New York, Connecticut, New Jersey, and Maryland in the Northeast. The majority of the fires are currently burning in Western Canada, but the jet stream pattern is funneling smoke east and south.
Delaware not under alert — but at risk
As of now, Delaware remains outside the officially declared alert zones, but conditions are changing rapidly. According to AirNow, the Environmental Protection Agency’s real-time monitoring platform, smoke is drifting steadily southward through New Jersey, where northern areas were under a Code Orange air quality alert as early as Wednesday morning, June 5. That alert has since been extended all the way to the Jersey Shore.
Most of Pennsylvania is currently registering moderate air quality, and parts of Maryland, especially those west of Delaware, have also been under Code Orange alerts since early June 5. Given this regional trend, it is highly plausible that Delaware’s air quality may deteriorate further in the coming hours.
Understanding the Code Orange alert
A Code Orange designation means that air pollution levels may be unhealthy for sensitive groups, including children, older adults, and individuals with respiratory or cardiac conditions. Under such circumstances, these populations should reduce prolonged outdoor exertion and stay indoors when possible, especially during peak pollution hours.
Current air quality levels in Delaware
At present, the Air Quality Index (AQI) in Delaware is still in the “good” range, hovering in the mid-40s. However, the EPA forecast anticipates a noticeable increase to an AQI of 80 by the end of June 5, placing it in the moderate zone. On June 6, the index is expected to remain elevated, around 58, still within moderate levels, but moving closer to potentially unhealthy territory.
What is the Air Quality Index?
The AQI is a standardized system used by U.S. agencies to assess and communicate the level of airborne pollutants, such as ozone, particulate matter, carbon monoxide, and others. The scale ranges from 0 to 500:
- 0–50: Good
- 51–100: Moderate
- 101–150: Unhealthy for sensitive groups
- 151–200: Unhealthy
- 201–300: Very unhealthy
- 301–500: Hazardous
The higher the number, the worse the air quality and the greater the health risk, particularly during events like wildfire smoke episodes.
Monitoring conditions in real time
Residents of Delaware, especially in northern counties and coastal zones, should remain attentive to real-time air quality data from AirNow and National Weather Service bulletins, as smoke from Canadian wildfires may continue moving into the region through the weekend.
