Aqi color code

Each color corresponds to a different level of health concern. Below are the color codes , from best to worst, with their corresponding health warnings. You can think of the AQI as a yardstick that runs from to 500. 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.

Ozone (O ) AQI scale. Air Quality Index Scale and Color Legend. When the AQI Color Code is GREEN or YELLOW , the air quality is considered acceptable and is not expected to have widespread health impacts. Sensitive groups include people with lung or heart disease, older adults, active people,. An AQI reading of 1corresponds to a level that is above the national air quality standard—the higher the AQI rating, the greater the health impact.

The AQI is divided into color-coded categories, and each category is identified by a simple informative descriptor. An air quality index ( AQI ) is used by government agencies to communicate to the public how polluted the air currently is or how polluted it is forecast to become. Public health risks increase as the AQI rises.

Different countries have their own air quality indices, corresponding to different national air quality standards. AQI : Unhealthy for Sensitive Groups (1- 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. Where can I find the AQI ? Checking local air quality is as easy as checking the weather.

The AQI is a national index, so the values and colors used to show local air quality and the levels of health concern are the same everywhere in the United States. Government that Works. Protect clean air, clean water, and public health and conserve working farms.

The default settings display each of the ozone and PM 2. To display either the AQI values or the concentration values, use radio buttons under the Layers tab on the left of the display of the map of Florida. The legend for the AQI is available on the Controls tab, also on the left of the display of the map of Florida. Air quality affects how you live and breathe. RGB color space or RGB color system, constructs all the colors from the combination of the Re Green and Blue colors. The re green and blue use bits each, which have integer values from to 255.

The “AQI” is an index used for reporting forecasted and daily air quality. The AQI uses color-codes and a numerical scale to report how clean or polluted the air is and what associated health effects might be of concern. The AQI focuses on health effects people may experience within a few hours or days after breathing polluted air.

The descriptors are intended to convey information to the public about how air quality relates to public health. The table below defines the AQI categories. Extremely sensitive individuals with existing respiratory or heart conditions may experience adverse health effects and may need to take appropriate precautions. NOTE: For Delhi NCR with multiple monitoring locations, average value is used to indicate air quality.

Each range is assigned a descriptor, a color code , and a standardized public health advisory. The AQI can increase due to an increase of air emissions (for example, during rush hour traffic or when there is an upwind forest fire) or from a lack of dilution of air pollutants. Our helpful guide uses the U. Healthy air quality is reflected in Code Green, while poor air quality is reflected in Code Orange, Re and Purple (very unhealthy). As seen in the table below, the AQI is a numbered and color coded way to report the daily air quality. The AQI is not a specific unit of measurement, rather it is scaled indication of general air quality.

This color -coded table shows generically how AQI values correlate with levels of health concern.