Air Quality Index - Washington State Department of Ecology (2024)

TheAir Quality Index(AQI) reportsair quality. We use AQI information to advise you about air quality levels. When there is too much air pollution, your health could be at risk.

I want to...

  • Check current air quality conditions (map)
  • Find out about health effects from smoke
  • Download the air quality mobile app

Using the Air Quality Index

The AQI tells us if the air is polluted. It specifically gives usinformation about how recent levels measured in the air relate to health concerns.The bigger the number, the more air pollution and the higher the risk for health problems.

The AQI measures these air pollutants:

  • Carbon monoxide
  • Nitrogen dioxide
  • Ozone
  • Particle pollution
  • Sulfur dioxide

The table shows the possible health effects of air quality at different levels. Each level is a different color with its own set of health problems.

Color (Values)

Meaning – What You Can Do

Air Quality Index - Washington State Department of Ecology (1)Green
(0-50)

Good – It’s a great day to be active outside and a good time to make a plan if worse air quality is in the forecast.

Air Quality Index - Washington State Department of Ecology (2)Yellow
(51-100)

Moderate – Some people are especially sensitive to lower levels of particle pollution and should reduce exposure.For example, limit time outside and avoid strenuous outdoor activity. All sensitive groups should watchfor symptoms.

Air Quality Index - Washington State Department of Ecology (3)Orange
(101-150)

Unhealthy for sensitive groups (USG) –Sensitive groups should take steps to reduce exposure. Limit time outside, avoid strenuous outdoor activity, and follow tips for cleaner indoorair. Everyone should watch for symptoms as a sign to reduce exposure.

Air Quality Index - Washington State Department of Ecology (4)Red
(151-200)

Unhealthy –Everyone should reduce exposure. Limit timeoutside, avoid strenuous outdoor activity, andfollow tips for cleaner indoor air.

Air Quality Index - Washington State Department of Ecology (5)Purple
(201-300)

Very unhealthy –Everyone should reduce exposure. Stay inside andfilter indoor air to keep it cleaner. Go elsewhere forcleaner air, if needed.

Air Quality Index - Washington State Department of Ecology (6)Dark red
(301+)

Hazardous –Everyone should reduce exposure. Stay inside andfilter indoor air to keep it cleaner. Go elsewhere forcleaner air, if needed.


Washington's Air Monitoring Network

Ecology and other air agencies maintainmonitoring stations to measure air pollution in Washington.The map below displays current AQI levels. For a bigger map with more features, go toWashington's Air Monitoring Network map.

Air quality mobile app

Download the air quality mobile app:

Translated content

Color
(números)

Significado –Qué puedes hacer

Air Quality Index - Washington State Department of Ecology (7)Verde
(0-50)

Buena – La contaminación del aire es baja, por lo que hay poco riesgo para la salud. No es necesario tomar precauciones.

Air Quality Index - Washington State Department of Ecology (8)Amarillo
(51-100)

Moderada – Limite las actividades al aire libre si tiene asma, infección respiratoria, diabetes, enfermedad pulmonar o cardíaca, o ha tenido un derrame cerebral. O realice actividades que requieran menos esfuerzo, como caminar en lugar de correr.

Air Quality Index - Washington State Department of Ecology (9)Anaranjado
(101-150)

No saludable para Grupos sensibles (USC) – Los grupos sensibles incluyen personas con asma, infecciones respiratorias, diabetes, enfermedades pulmonares o cardíacas, quienes han sufrido un derrame cerebral, bebés, niños, mayores de 65 años y mujeres embarazadas. Estas personas deben limitar el tiempo que pasan al aire libre.

Air Quality Index - Washington State Department of Ecology (10)Rojo
(151-200)

Insalubre – Nocivo para la salud: todos deben limitar el tiempo que pasan al aire libre. Evite hacer ejercicio al aire libre (incluidos los equipos deportivos) y elija actividades en interiores que no sean extenuantes. Estas personas deben permanecer en el interior: cualquier persona con asma, infección respiratoria, diabetes, enfermedad pulmonar o cardíaca, o quienes hayan sufrido un derrame cerebral, bebés, niños, mayores de 65 años y mujeres embarazadas.

Air Quality Index - Washington State Department of Ecology (11)Púrpura
(201-300)

Muy insalubre –Todo el mundo debería permanecer en el interior, realizar solo actividades ligeras y mantener las ventanas cerradas si no hace demasiado calor. Haga funcionar los acondicionadores de aire en recirculación y cierre la entrada de aire exterior. Utilice limpiadores de aire para interiores con filtros HEPA, si están disponibles. Si debe estar al aire libre, use una máscara de respiración N-95. Las personas con enfermedades crónicas deben consultar con su médico antes de usar una máscara.

Air Quality Index - Washington State Department of Ecology (12)Rojo oscuro
(301+)

Peligroso – Todos deben permanecer adentro, realizar solo actividades ligeras y mantener las ventanas cerradas si no hace demasiado calor. Haga funcionar los acondicionadores de aire en recirculación y cierre la entrada de aire exterior. Utilice limpiadores de aire para interiores con filtros HEPA, si están disponibles. Si debe estar al aire libre, use una máscara de respiración N-95. Las personas con enfermedades crónicas deben consultar con su médico antes de usar una máscara.

We offer free language services about our programs and services for people whose primary language is not English. We can provide written information in your preferred language and interpreters in person or over the telephone.

Contact our Language Access team: civilrights@ecy.wa.gov

  • Servicios de Idiomas
  • 語言服務
  • 통역/번역 서비스
  • Dịch vụ thông dịch

Related links

Contact information

Matt Kadlec
Toxicologist
matt.kadlec@ecy.wa.gov
360-522-0701

Air Quality Index - Washington State Department of Ecology (2024)
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