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The Big Air Quality Index (AQI) | Air Pollution

Real-time PM2.5, PM10 air pollution level in La Grande

Last Updated: 2026-08-15 04:31 (Local Time)

Live AQI

71AQI (US)

Air Quality is

Moderate

PM2.5 : 22 µg/m³

pm10 : 26 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

18 °C

Last Updated: 2026-08-15 04:31 (Local Time)

Rank341^st

Currently, La Grande ranks 341^st among the cities with the highest AQI levels in the world.

Map

The Big

Major Air Pollutants
The Big

Particulate Matter(PM₂.₅)

22µg/m³

Particulate Matter(PM₁₀)

26µg/m³

Carbon Monoxide(CO)

198ppb

Sulfur Dioxide(SO₂)

2ppb

Nitrogen Dioxide(NO₂)

4ppb

Ozone(O₃)

27ppb

AQI Graph

Historical Air Quality Data
The Big

24 Hours

AQI (US)

The Big

AQI (US)

14-08-2026Time15-08-2026

Time	The Big
4:31am	78
5:01am	78
5:31am	73
6:01am	80
6:31am	71
7:01am	75
7:31am	80
8:01am	78
8:31am	75
9:01am	75
9:31am	78
10:01am	73
10:31am	69
11:01am	69
11:31am	71
12:01pm	65
12:31pm	60
1:01pm	60
1:31pm	67
2:01pm	58
2:31pm	56
3:01pm	58
3:31pm	60
4:01pm	54
4:31pm	56
5:01pm	56
5:31pm	58
6:01pm	52
6:31pm	52
7:01pm	54
7:31pm	56
8:01pm	56
8:31pm	56
9:01pm	63
9:31pm	67
10:01pm	67
10:31pm	71
11:01pm	73
11:31pm	78
12:01am	88
12:31am	86
1:01am	73
1:31am	69
2:01am	69
2:31am	73
3:01am	73
3:31am	71
4:01am	63
4:31am	71

Min. AQI (US)6:01pm

Max. AQI (US)12:01am

Want air quality data?

AQI (US) Trends - Annual Air Quality Changes
The Big, La Grande, Oregon, United States

AQI (US)

United States's Metro Cities
Air Quality Index

Chicago

Los Angeles

Minneapolis

Nashville

New Orleans

New York City

San Francisco

Washington

Air Quality Calendar 2026
The Big

2026

AQI (US)

Health Advice For People Living In
The Big

0Cigarettes per day

Weekly 0 Cigarettes

Monthly 0 Cigarettes

Breathe easy and get active! The air quality is perfect for enjoying outdoor activities.

Source:

Berkeley Earth

Disclaimer: This cigarette-equivalent estimate is based on the average PM2.5 concentration over the last 24 hours, assuming continuous exposure during that time.

Solutions for Current AQI (US)

Air PurifierTurn On

Car FilterMust

N95 MaskMust

Stay IndoorMust

Prevent Health Problems: Understand Your Risks

The Big

Asthma

Heart Issues

Allergies

Sinus

Cold/Flu

Chronic (COPD)

Disclaimer: The above health risks are precautionary suggestions based on current AQI levels. You may not feel the effects immediately, but prolonged exposure to air pollution can contribute to these health conditions over time. AQI.IN is neither a medical expert nor a provider of medical advice. Please consult a doctor if you experience any of the above similar symptoms.

Most Polluted Cities 2026
United States

Analyze the real-time most air polluted cities in the country.

Most Polluted Cities Live Ranking 2026

World's Most PollutedCity Rankings (2025)

World's Most PollutedCountry Rankings(2025)

RankCityAQI Status

Standard Value

Cleveland, Mississippi

Moderate

2xabove Standard

Wenatchee, Washington

Moderate

2xabove Standard

Chelan, Washington

Moderate

2xabove Standard

The Dalles, Oregon

Moderate

2xabove Standard

Quincy, Washington

Moderate

2xabove Standard

Fargo, North Dakota

Moderate

2xabove Standard

Jackson, Mississippi

Moderate

2xabove Standard

Little Rock, Arkansas

Moderate

2xabove Standard

Pendleton, Oregon

Moderate

1xabove Standard

10.

Albany, Oregon

Moderate

1xabove Standard

Last Updated: 15 Aug 2026, 11:48 AM

AQI City Rankings

Air Quality Solutions For The Big
Explore the solutions of air quality monitoring & clean air.

Here are some applications that you can go through to find out the solutions.

Air Quality Monitor

Monitor the air quality

Air Quality Sensors

Sensors to measure the air quality

Fresh Air Machine

Clean the air you breathe

Car Cabin Filter

Purify the air in your car

N95 Mask

Shield yourself from pollution

Prana Air offers the solutions of air quality monitoring and clean air machine for The Big

Air Quality Solution For Offices

A complete solution for air quality monitoring, data analysis, and fresh air solutions in workplaces prioritizing employee's health and productivity.

Air Quality Solutions For Smart City

Prana Air smart city project provides air quality monitors, drones, outdoor air purifiers, and data dashboards solution to improve air quality.

Air Quality Solutions for Schools | Institutes

Prana Air provides the air quality solutions for schools by air monitoring & fresh air machine that help the students to breather clean air.

Air Quality Solutions For Hotels

Prana Air air quality solutions are suited for hotel businesses. The occupancy of hotels is the main reasons for bad air quality.

Air Quality Solutions for Restaurants

Prana Air has the air quality solutions for restaurant, cafes, and gives you the power to know what your customers and staff breathe.

Air Quality Solutions for RMC Plants

Prana Air provides air quality monitoring solutions for RMC plants. Improve compliance, protect workers and community, and reduce emissions.

Air Quality Solutions for Fitness Center

Prana Air provides the air quality solutions of pollution monitoring and fresh air for fitness center - gym.

Air Quality Solutions for Parking Lot

A complete solution for air monitoring, data analysis, and fresh air solutions for enclosed car parking areas and car lots.

Air Quality Solutions for Retail Stores

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets.

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets

Prana Air provides the air quality solutions for airport. Gathering of many passengers is the main reasons of bad air quality in airport.

Air Quality Solutions For Construction Sites

Prana Air offers air quality monitoring solutions for construction sites with data cloud storage, web-dashboard, mobile apps, TV display.

Air Quality Solutions For Hospitals

Prana Air provides air quality monitoring and fresh air solutions for hospitals to ensure clean and healthy indoor air.

Air Quality Solutions For Washroom | Bathroom

Improve washroom and bathroom air quality with Prana Air air quality monitoring devices and fresh air machine. Breathe easy and stay healthy.

Air Quality Solutions for Banks

Prana Air provides air quality solutions of pollution monitoring and fresh air for banks and financial institutions.

Air Quality Solutions for Cinema

Air quality solutions for cinema halls or theatres will help the customers to get the good experience, comfort and breathe clean air.

Air Quality Solutions For Real Estates

Prana Air provides the air quality solutions of pollution monitoring and fresh air for real estates - residential and commercial.

The Big's AQI Data Analytics Solutions
Air quality data monitoring platforms

Mobile App

Smart TV App

Web Dashboard

API

Widgets

Air Quality FAQs
at The Big

Frequently Asked Questions About Air Quality

1. What is the current AQI (US) level in The Big?

The current real-time AQI (US) level in The Big is 71 (Moderate). This was last updated 2026-08-15 04:31 (Local Time).

2. When was the best AQI (US) level in The Big in the last 24 hours?

The best AQI (US) level was 52 (Moderate) at 6:01 PM, Aug 14, 2026 (Local Time) during the last 24 hours.

3. When was the worst AQI (US) level in The Big in the last 24 hours?

The worst AQI (US) level was 88 (Moderate) at 12:01 AM (Local Time) during the last 24 hours.

4. What is the current trend of AQI (US) levels in The Big during last 24 hours?

The AQI (US) levels in The Big have been fluctuating throughout the last 24 hours. The levels have increased by highest 88 at 12:01 AM (Local Time), lowest 52 at 6:01 PM, Aug 14, 2026 (Local Time).

5. What actions are recommended as per the current AQI (US) level in The Big?

Current AQI (US) levels are acceptable; however, some pollutants may be a concern for a small number of sensitive individuals.