Unhealthy air quality meaning

What is unhealthy air quality? How is AQI calculated? When AQI values are above 10 air quality is considered to be unhealthy-at first for certain sensitive groups of people, then for everyone as AQI values get higher.

Understanding the AQI The purpose of the AQI is to help you understand what local air quality means to your health. When air quality is unhealthy , you can protect your health by reducing how much time you spend on this type of activity. This means intense outdoor activities that cause you to breathe hard. On February the air quality in New York City and other parts of the state, as well as New Jersey and parts of Pennsylvania, was unhealthy for sensitive groups. That rating falls between 1and 1and is generally safe for healthy members.

This kind of classification is normally used to describe colors used in an air quality index, and usually refer to end negative color (re brown) pointing to very polluted air , where there is no doubt that there is a negative impact on health of the whole population. Moderate” range, which is between and 100. When air is unhealthy outside, you can reduce intake of unhealthy air by reducing how much time you spend on this type of activity.

Heavy Exertion: Heavy exertion means intense outdoor activities that cause you to breathe hard. Exposure to poor indoor air quality can cause short-term eye, nose and throat irritation as well as headaches, dizziness and fatigue. It can also exacerbate the effects of asthma, particularly in children. Over time, this exposure can lead to respiratory disease, cardiovascular disease or even cancer.

A red air quality alert indicates it is starting to become dangerous for everyone. Purple and maroon air quality alerts—though rare—are extremely hazardous for all groups. The CAQI is a number on a scale from to 10 where a low value means good air quality and a high value means bad air quality. The index is defined in both hourly and daily versions, and separately near roads (a roadside or traffic index) or away from roads (a background index). The Environmental Protection Agency (EPA) has developed an air quality index which gives us a quick sense of how polluted the air is.

The values range from 0-500. Limit the amount of time your child spends playing outdoors if the air quality is unhealthy. Always avoid exercising near high-traffic areas. Even when air quality forecasts are green, the vehicles on busy highways can create high pollution levels up to one-third a mile away.

Use less energy in your home. The combination of high temperatures, few winds and breezes, pollution and airborne particles can brew up an unhealthful mixture in the air , just waiting to enter your lungs. These substances can make it hard to breathe and can sap your energy.

If the air quality is especially poor, it may take a few days for your body to recover. Poor air quality is a problem all over the world. Polluted air is linked to a variety of health concerns, ranging from short-term irritation to serious diseases or even death.

It is a result of manufacturing,. The Air Quality Index, or AQI, is the system used to warn the public when air pollution is dangerous. As the air quality gets worse, the numbers go up, and the color linked with it goes from orange, to re to purple,. However, some pollutants may pose a moderate health concern for those who are unusually sensitive to air pollution. Unhealthy for Sensitive Groups – Members of sensitive groups may experience health effects.

An AQI between and is good. At 1to 15 the air is considered unhealthy for sensitive groups: The elderly, children,. The World Air Quality Index project has exercised all reasonable skill and care in compiling the contents of this information and under no circumstances will the World Air Quality Index project team or its agents be liable in contract, tort or otherwise for any loss, injury or damage arising directly or indirectly from the supply of this data.