Everyone may begin to experience some adverse health effects, and members of the sensitive groups may experience more serious effects. An AQI value of 100 generally corresponds to the national air quality standard for the pollutant, which is the level EPA has set to protect public health. The entire population is more likely to be affected.

When AQI values are above 100, air quality is considered to be unhealthy-at first for certain sensitive groups of people, then for everyone as AQI values get higher.

Although general public is not likely to be affected at this AQI range, people with lung disease, older adults and children are at a greater risk from exposure to ozone, whereas persons with heart and lung disease, older adults and children are at greater risk from the presence of particles in the air.

It tells you how clean or polluted your air is, and what associated health effects might be a concern for you. Millions of people live in areas where air pollution can cause serious health problems. For example, people who are unusually sensitive to ozone may experience respiratory symptoms.

It tells you how clean or polluted your air is, and what associated health effects might be a concern for you. Mumbai’s 2019 annual average is set to decrease. To navigate to the current AirNow website, please go to airnow.gov. The AQI is an index for reporting daily air quality.

This website is no longer updated and links to external websites and some internal pages may not work.

EPA calculates the AQI for five major air pollutants regulated by the Clean Air Act: ground-level ozone, particle pollution (also known as particulate matter), carbon monoxide, sulfur dioxide, and nitrogen dioxide.

Air quality is considered satisfactory, and air pollution poses little or no risk. Additional information on reducing exposure to extremely high levels of particle pollution is available here. "Very Unhealthy" AQI is 201 to 300. "Hazardous" AQI greater than 300. The Air Quality Index (AQI) is a color-coded index EPA uses to communicate daily air pollution for ozone, particle pollution, NO 2, CO and SO 2. Air Quality Index (AQI) & Health. "Unhealthy" AQI is 151 to 200. The United States places 27th in the 2018 EPI, with strong scores on some issues, such as sanitation and air quality, but weak performance on others, including deforestation and greenhouse gas emissions. AIRNow - Eugene/Springfield, OR Air Quality - AQI: Unhealthy for Sensitive Groups (101 - 150) Although general public is not likely to be affected at this AQI range, people with lung disease, older adults and children are at a greater risk from exposure to ozone, whereas persons with heart and lung disease, older adults and children are at greater risk from the presence of particles in the air.

Note: Values above 500 are considered Beyond the AQI.

For example, an AQI value of 50 represents good air quality with little potential to affect public health, while an AQI value over 300 represents hazardous air quality. Health alert: everyone may experience more serious health effects. "Moderate" AQI is 51 to 100.

Local air quality can affect our daily lives.

"Good" AQI is 0 to 50.

AQI values below 100 are generally thought of as satisfactory. Of the emerging economies, China and Ind…

Each category corresponds to a different level of health concern. The AQI is an index for reporting daily air quality. The higher the AQI value, the greater the level of air pollution and the greater the health concern. A value in the unhealthy range, above the national air quality standard for any pollutant, is of concern first for sensitive … This would trigger a health warnings of emergency conditions. This is not the current AirNow website. This page was last updated on Tuesday, June 18, 2019, Air Quality Index - A Guide to Air Quality and Your Health. AQI India provides air pollution data with real-time Air Quality Index (AQI), PM2.5, PM10, temperature, humidity and noise data of your location, city and state. Accessibility at Yale, Wellness at Yale: Promoting wellbeing through research and outreach, Office of Public Affairs & Communications. In 2019, only four months experienced unhealthy air quality, as compared to seven months in 2018. Order any of our AirNow publications from.

Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people. For each of these pollutants, EPA has established national air quality standards to protect public health .Ground-level ozone and airborne particles are the two pollutants that pose the greatest threat to human health in this country. AirNow and the U.S. Forest Service have launched a pilot project to show data from low-cost sensors on the Fire and Smoke Map.

To make it easier to understand, the AQI is divided into six categories: Note: Values above 500 are considered Beyond the AQI.

The entire population is more likely to be affected. The AQI focuses on health effects you may experience within a few hours or days after breathing polluted air. Health warnings of emergency conditions. Additional information on reducing exposure to extremely high levels of particle pollution is available here. Follow recommendations for the Hazardous category.

The general public is not likely to be affected. The purpose of the AQI is to help you understand what local air quality means to your health. The goal of the project is to provide additional air quality information during wildfires – especially in areas with no AirNow monitors.

Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Think of the AQI as a yardstick that runs from 0 to 500. For example, the color orange means that conditions are "unhealthy for sensitive groups," while red means that conditions may be "unhealthy for everyone," and so on. The Air Quality Index is a daily index of air quality that reports how clean the air is and provides information on potential health risks.

Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects. The financial center of India, Mumbai’s air quality worsened from 2017 to 2018 with an increase in the annual average PM2.5 levels by 4.4 µg/m³, from 54.2 µg/m³ to 58.6 µg/m³. "Unhealthy for Sensitive Groups" AQI is 101 to 150. The AQI focuses on health effects you may experience within a few hours or days after breathing polluted air.

Oregon’s index is based on three pollutants regulated by the federal Clean Air Act: ground-level ozone, particle pollution and nitrogen dioxide.

Follow recommendations for the "Hazardous category."

Members of sensitive groups may experience health effects. Air quality is considered satisfactory, and air pollution poses little or no risk. This would trigger a health alert signifying that everyone may experience more serious health effects. Like the weather, it can change from day to day. This website is historical material reflecting the AirNow website as it existed on April 15, 2020.

The six levels of health concern and what they mean are: EPA has assigned a specific color to each AQI category to make it easier for people to understand quickly whether air pollution is reaching unhealthy levels in their communities. This ranking puts the United States near the back of the industrialized nations, behind France (2nd), the United Kingdom (6th), Germany (13th), Italy (16th), Japan (20th), and Canada (25th).