155 air quality index

Last update atJan Free iOS and Android air quality app.

Are you at risk? Do you know what to do? An air quality alert like this informs the public about pollution levels in the air and advises vulnerable groups—such as the elderly, children, and people with lung disease—to take precautions. The U. Monitors record pollution at over locations in the U. A level of is deemed safe for each pollutant.

155 air quality index

AirNow will reflect the updates when they become effective -- 60 days after the rule is published in the Federal Register. Read about the AQI updates. Think of the AQI as a yardstick that runs from 0 to The higher the AQI value, the greater the level of air pollution and the greater the health concern. For example, an AQI value of 50 or below represents good air quality, while an AQI value over represents hazardous air quality. For each pollutant an AQI value of generally corresponds to an ambient air concentration that equals the level of the short-term national ambient air quality standard for protection of public health. AQI values at or below are generally thought of as satisfactory. When AQI values are above , air quality is unhealthy: at first for certain sensitive groups of people, then for everyone as AQI values get higher. The AQI is divided into six categories. Each category corresponds to a different level of health concern. Each category also has a specific color. The color makes it easy for people to quickly determine whether air quality is reaching unhealthy levels in their communities. Each of these pollutants has a national air quality standard set by EPA to protect public health:.

Each state and territory publishes air quality data for individual monitoring locations, and most states and territories publish air quality indexes for each monitoring location.

Once connected, your real time air pollution levels are instantaneously available in on our maps. The station comes together with meter water-proof power cables, a power supply, mounting equipment and an optional solar panel. North America. South America. Middle East. South Korea.

AirNow will reflect the updates when they become effective -- 60 days after the rule is published in the Federal Register. Read about the AQI updates. Every day the Air Quality Index AQI tells you how clean or polluted your outdoor air is, along with associated health effects that may be of concern. Local air quality affects how you live and breathe. Like the weather, it can change from day to day or even hour to hour. Ground-level ozone and airborne particles are the two pollutants that pose the greatest threat to human health in this country. Millions of people live in areas where air pollution can cause serious health problems. Local air quality can affect our daily lives. Like the weather, it can change from day to day. EPA developed the Air Quality Index, or AQI, to make information available about the health effects of the five most common air pollutants, and how to avoid those effects.

155 air quality index

What does the AQI mean? The scale goes from 0 to It can be dangerous for people with lung conditions like asthma or COPD at lower levels. The daily AQI measures air pollution from ozone, particle matter, carbon monoxide, sulfur dioxide, and nitrogen dioxide.

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Children, active adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion. Photo: David Beach Ground level ozone is produced when emissions from vehicles, power plants, industrial boilers and other fossil fuel burning facilities react with sunlight. It can cause coughing, wheezing, shortness of breath, palpitations, and fatigue; it can also aggravate asthma and chronic bronchitis, and has been linked to cardiac arrhythmia and heart attacks. Individuals, communities, cities and local authorities are changing laws, transforming the cities in which they live, fitting their own renewable energy installations in their homes and businesses. Most of the pollution there is due to traffic and smog from power plants and industry. Particulate matter Particulate matter PM refers to small particles, both solid and liquid, that can enter the lungs and cause respiratory problems. People unusually sensitive to air pollution: Plan strenuous outdoor activities when air quality is better. All air quality data and information is derived from a separate set of air monitoring data values based on recorded concentrations of the major pollutants for each day. AccuWeather hereby disclaims any and all representations and warranties with respect to the air quality data and information, including but not limited to any implied warranties of accuracy, fitness for use, and merchantability. Exposure to Sulfur Dioxide can lead to throat and eye irritation and aggravate asthma as well as chronic bronchitis. PMC Each state and territory publishes air quality data for individual monitoring locations, and most states and territories publish air quality indexes for each monitoring location. North America.

AirNow will reflect the updates when they become effective -- 60 days after the rule is published in the Federal Register.

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. For around 70 of those days, the air quality was far in excess of the permissible levels. Air pollution data of states in Bulgaria. Light Ecological light pollution Overillumination Radio spectrum pollution. It is showing a drastic change in decrease of pollution. Biological hazard Genetic Introduced species Invasive species. The health effects of pollution are worsened over extended periods of exposure, and by the deep, rapid breathing that comes with exercise. On average, the heating season lasts for approximately days. People are starting to rethink their behaviour and their actions. Select your location to view local American Lung Association events and news near you. Like it was mentioned in the report , EPA is working with states and tribes to limit common air pollutants and helping states to meet standards for them with the help of issuing federal and national emissions standards. Archived from the original on 11 June An AQI between 0 and 50 is good. Archived from the original on 4 March You will now receive email updates from the American Lung Association.