AQI

Port Arthur Air Quality Index & Realtime Air Pollution

Live AQI
48(AQI-US)
Air Quality is
Good
PM2.5 :9.9µg/m³
PM10 :11.1µg/m³
Good
Moderate
Poor
Unhealthy
Severe
Hazardous
050100150200300301+
Good air quality mascot

Primary Air Pollutants Port Arthur (Texas)

PM2.510µg/m³
PM2.5
Fine particles
PM1011µg/m³
PM10
Coarse particles
SO₂3µg/m³
SO₂
Sulphur dioxide
CO117µg/m³
CO
Carbon monoxide
NO₂4µg/m³
NO₂
Nitrogen dioxide
O₃97µg/m³
O₃
Ozone

Hourly forecast Port Arthur (Texas)

Now26°
Partly cloudy
20:0025°
Moderate rain showers
21:0025°
Light drizzle
22:0024°
Mostly clear
23:0024°
Light drizzle
00:0024°
Light drizzle
01:0023°
Partly cloudy
02:0023°
Overcast
03:0023°
Overcast
04:0023°
Mostly clear
05:0023°
Slight rain showers
06:0023°
Overcast
07:0023°
Overcast
08:0024°
Overcast
09:0025°
Overcast
10:0025°
Moderate rain showers
11:0026°
Overcast
12:0026°
Overcast
13:0027°
Overcast
14:0027°
Overcast
15:0027°
Overcast
16:0025°
Overcast
17:0026°
Overcast
18:0026°
Overcast

Health Recommendations for Port Arthur Residents

Based on current air quality: Good · AQI 48

Good
Air Purifier
Air PurifierTurn Off
Car Filter
Car FilterAdvisable
N95 Mask
N95 MaskAdvisable
Stay Indoor
Stay IndoorAdvisable

UV Index

0.15

Low

Safe to be outside. Minimal UV risk.

Wind

11.5 km/h

Light breeze — leaves rustling gently.

AQI Graph

Historical AQI Data Port Arthur (Texas)

43
Min. AQIat 8:00 AM on 3rd Jun
51
Max. AQIat 1:00 AM on 3rd Jun
03-06-2026Time04-06-2026

United States Major Cities AQI Overview


Most Polluted Cities by AQI United States

119
Poor3x above Standard
93
Moderate2x above Standard
81
Moderate2x above Standard
79
Moderate1x above Standard
75
Moderate1x above Standard
75
Moderate3x above Standard
75
Moderate3x above Standard
73
Moderate2x above Standard
72
Moderate1x above Standard
67
Moderate1x above Standard
Last Updated: 03 Jun 2026, 22:43

Health Advice For People Living in Port Arthur

0.5
Cigarettes
per day
Weekly3.5 Cigarettes
Monthly15 Cigarettes

Breathing the air in this location is equivalent to smoking 0.5 cigarettes a day.

Disclaimer: This cigarette-equivalent estimate is calculated using the average PM2.5 concentration from the past 24 hours, assuming constant exposure throughout that period.
Solutions for Port Arthur Current AQI (US)
Air Purifier
Air PurifierTurn Off
Car Filter
Car FilterAdvisable
N95 Mask
N95 MaskAdvisable
Stay Indoor
Stay IndoorAdvisable
Must turn on the air purifier to enjoy fresh air.Get an Air Purifier

Prevent Health Problems: Understand Your Risks

Port Arthur · Current air quality: Good · AQI 48

Low Trigger Risk

Headaches

Risk of Headaches symptoms is Low when AQI of Port Arthur is Good (0-50).

Common signs

Signs may include: Pressure or tightness around the forehead and temples, Sensitivity to light or smell, Fatigue or difficulty concentrating.

Do’s :
  • Opt for indoor, air with filtration when the AQI is poor.
  • Increase fluids and rest from digital screens or intense light if you are migraine-prone.
  • If you Use prescribed migraine meds, Keep them accessible.
Don’ts :
  • Don’t do intense outdoor exercise during elevated AQI periods.
  • Do not ignore worsening signs that feel unusual for you.

Disclaimer: The health risks mentioned above are precautionary recommendations based on current AQI levels. While you may not experience immediate effects, prolonged exposure to air pollution can lead to these health issues over time. This is not medical advice. Please consult a clinician if you experience severe, unusual, or worsening symptoms.

Air Quality FAQs at Port Arthur, Texas

The current real-time AQI (US) level in Port Arthur, Texas is 48 (Good). This was last updated recently.

The best AQI (US) level was generally lower during the early afternoon in the last 24 hours.

The worst AQI (US) level typically peaks during early morning or late evening hours due to temperature inversion.

The AQI (US) levels in Port Arthur, Texas have been fluctuating throughout the last 24 hours depending on traffic and weather conditions.

Current AQI (US) levels are good for everyone. It's advised to adjust your outdoor activities based on personal sensitivity.