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Hill St Air Quality Index (AQI) | Air Pollution

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

Last Updated: 21 Sep 2025, 12:39am (Local Time)

location image
Live AQI
45(AQI-US)
Air Quality is
Good
pm10 :  26 µg/m³
PM2.5 :  8 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi good level.webp in Hill St
clear

17 °C

Clear
Humidity
Humidity52 %

Wind Speed
Wind Speed12 km/h

UV Index
UV Index0
Last Updated: 21 Sep 2025, 12:39am (Local Time)


Map

Hill St

Major Air Pollutants

Hill St

AQI Graph

Historical Air Quality Data

Hill St

Hill St
AQI
.
20-09-2025Time21-09-2025
44
Min.at 1:39 AM on 20th Sep
54
Max.at 9:09 AM on 20th Sep

Download 2024 Annual Data

World Air Quality Report

Globe

AQI Trends - Annual Air Quality Changes

Hill St, Pullman, Washington, United States

Year
.
AQI


Annual AQI Trends

2020
23AQI
2021
22AQI
-4%
Fall
2022
21AQI
-5%
Fall
2023
21AQI
0%
No Change
2024
22AQI
5%
Rise
2025
25AQI
14%
Rise
Overall Annual Percentage (%) change of AQI in (2020 to 2025)
2%
Rise (Worsened AQI)

Most & Least Polluted Months

Most PollutedSeptember, 202068AQI

Least PollutedMarch, 20249AQI

* This data analysis is from year 2020 - 2025

United States's Metro Cities

Air Quality Index

Health Advice For People Living In

Hill St

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

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


As per the current AQI, turn off the air purifier.

Get an Air Purifier

Prevent Health Problems: Understand Your Risks

Hill St

  • asthma due to air pollution in Hill StAsthma
  • heart due to air pollution in Hill StHeart Issues
  • allergy due to air pollution in Hill StAllergies
  • sinus due to air pollution in Hill StSinus
  • flu due to air pollution in Hill StCold/Flu
  • copd due to air pollution in Hill StChronic (COPD)
asthma due to air pollution in Hill St

Low Chances of Asthma

Asthma

Risk of Asthma symptoms is Low when AQI is Good (0-50)

Mild symptoms such as slight wheezing, occasional cough, and minor shortness of breath

Do's :

  • Keep track of air quality to plan outdoor activities safely.

  • Drink water to keep airways moist and reduce irritation.

  • Include non-allergenic fruits and vegetables that support overall lung health, like apples, pears, and spinach.

Don'ts :

  • Skip medications that is prescribed by your doctor.

  • Engage in outdoor activities in early morning during high pollen hours.

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 2025

United States

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

Hill St's AQI Data Analytics Solutions

Air quality data monitoring platforms

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aqi air quality app for Hill St
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Empower Your Decisions with Reliable Data

Your area’s real-time data with detailed parameters.

Your area’s real-time data with detailed parameters.


Personalized health advice as per current AQI.

Personalized health advice as per current AQI.


Analytical data to identify trends and conditions.

Analytical data to identify trends and conditions.


Connect and control your air quality devices.

Connect and control your air quality devices.


Air Quality FAQs

at Hill St

Frequently Asked Questions About Air Quality

What is the current AQI level in Hill St?

The current real-time AQI level in Hill St is 45 (Good). This was last updated 21 Sep 2025, 12:39am (Local Time).

When was the best AQI level in Hill St in the last 24 hours?

The best AQI level was 44 (Good) at 1:39 AM, Sep 20, 2025 (Local Time) during the last 24 hours.

When was the worst AQI level in Hill St in the last 24 hours?

The worst AQI level was 54 (Moderate) at 9:09 AM, Sep 20, 2025 (Local Time) during the last 24 hours.

What is the current trend of AQI levels in Hill St during last 24 hours?

The AQI levels in Hill St have been fluctuating throughout the last 24 hours. The levels have increased by highest 54 at 9:09 AM, Sep 20, 2025 (Local Time), lowest 44 at 1:39 AM, Sep 20, 2025 (Local Time).

What actions are recommended as per the current AQI level in Hill St?

The air quality is satisfactory, and air pollution poses little or no risk. No special precautions are needed; enjoy outdoor activities freely.