|2||Sylvan Springs, Alabama|
|3||Union Springs, Alabama|
|5||Rice Lake, Wisconsin|
|8||Lancaster, South Carolina|
(local time)SEE WORLD AQI RANKING
live AQI index
|Air pollution level||Air quality index||Main pollutant|
|Good|| 14 US AQI||PM2.5|
|PM2.5|| 3.5 µg/m³|
|pm10|| 7.5 µg/m³|
|Open your windows to bring clean, fresh air indoors|
|Enjoy outdoor activities|
|Saturday, Apr 10|
Good 25 US AQI
|Sunday, Apr 11|
Good 17 US AQI
|Monday, Apr 12|
Good 29 US AQI
|Tuesday, Apr 13|
Good 21 US AQI
Good 34 US AQI
|Thursday, Apr 15|
Good 24 US AQI
|Friday, Apr 16|
Good 39 US AQI
|Saturday, Apr 17|
Moderate 56 US AQI
|Sunday, Apr 18|
Good 49 US AQI
|Monday, Apr 19|
Moderate 57 US AQI
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Miami, officially the City of Miami, is a coastal metropolis located in south-eastern Florida in the United States. Surprisingly, the city has the third tallest skyline in the U.S. with over 300 high-rise buildings. The 2010 population figure was almost 400,000 for the metropolitan city, but over 6 million for the entire metropolis.
The Port of Miami is the busiest cruise centre in the world for both passenger numbers and vessels. It refers to itself as “The Cruise Capital” of the world.
In early 2021, Miami was enjoying a period of “Good” quality air with a US AQI number of just 15. This classification is in line with recommendations from the World Health Organisation (WHO). The concentrations of the measured pollutants were PM2.5 - 3.7 µg/m³ and PM10 - 7.2 µg/m³.
With levels as relatively low as these, doors and windows can be opened to allow fresh air to enter and all forms of outdoor activity can be enjoyed without fear.
The World Health Organisation has a recommended target when it comes to air pollution. Whilst no form of air pollution is safe, it is thought that anything less than 10 µg/m³ is acceptable. During the whole of 2020, Miami achieved the WHO target every single month. The months of November and December were exceptionally low with figures of 5.4 and 4.9 µg/m³respectively.
Unfortunately, there are no figures before 2019 but since then the air quality in Miami has remained very stable with 7.8 µg/m³ in 2019 and 7.9 µg/m³ in 2020.
The period from April to mid-June sees an increase in ground-level ozone, better known as smog. The main reasons for this are the abundance of vehicles using the roads, relatively low humidity and increasing levels of sunlight.
The American Lung Association’s annual report found several cities earned mixed rankings for the nation’s most widespread air pollutants, mainly ozone and particle pollution, both of which can be deadly.
Some cities experienced zero days when excess ozone was recorded, yet others suffered an increase in excess days. It is said to be due to the higher temperatures which have been recorded over the last couple of years.
Changing climate patterns with higher temperatures also lead to an increase in wildfires due to the vegetation being so dry. Smoke from these fires results in higher levels of PM2.5 and PM10.
One of the major components of Florida’s polluted air is ozone which is formed when emissions from chimneys and exhausts interact with ultraviolet light. The level of ozone tends to increase throughout the day as the sun gets stronger over lunchtime.
South Florida suffered heavily in the 1970s and 80s when large gas-guzzling cars were popular. The modern trend is for smaller, more efficient cars which have much smaller engines and are therefore much more efficient and economical.
South Florida is in a fortunate position due to its geographical location. Winds blow from both the east and the west at different times and as such blow away any stagnant air that may be trapping ozone. One day can see relatively high levels of ozone, but the following day there is nothing as the winds have blown it away.
Even though looks can be deceiving, there really are too many cars, delivery vehicles and buses on the city streets now. Between them, they produce more and more pollutants in the form of ozone and particulate matter (PM2.5). Together they exacerbate asthma attacks and this leads to lost days due to sickness.
As with most cities in any country, electric vehicles are looked at as a way out of the conundrum. It is estimated that Miami will save billions of dollars through increased public health benefits and hundreds of premature deaths could also be avoided.
Florida seems to be a very popular area in which to retire as more and more vehicles are appearing on the roads, annually. This alone makes total sense to commit to electric vehicles, sooner rather than later.
Several air pollutants can cause damage to health, but there are six major air pollutants (carbon monoxide, lead, nitrogen dioxide, ozone, particulate matter and sulphur dioxide) that have been identified as causing health effects at concentrations in the ambient air (the outside air we breathe) above thresholds established at levels known to be safe.
Individuals most at risk from respiratory problems when near-ground ozone levels are high include children under the age of 14 years, senior citizens, and people with asthma, congestive heart failure, coronary artery disease, and lung diseases such as chronic obstructive pulmonary disease or COPD. In other words, people with existing respiratory problems.
The actual risk of adverse effects depends on your current state of health, the type of pollutant and concentration, and the length of your exposure to the polluted air.
High levels of air pollution can cause immediate effects such as the aggravation of cardiovascular and respiratory illnesses. It adds stress to the heart and lungs as they try to keep a constant supply of much-needed oxygen to the body. Cells within the respiratory system can soon become damaged.
Longer-term exposure can lead to the ageing of the lungs with loss of capacity and a decrease in their efficiency. Diseases such as asthma, bronchitis, emphysema and possibly cancer develop easier under such conditions.
Fortunately for most people, the effects of ozone and the other common pollutants appear to be short-term, according to the most recent studies cited by the EPA. These irritate the airways and lungs during exposure and for up to several hours afterwards, before breathing returns to normal. In the respiratory tract, research has shown that cells affected by ozone pollution and environmental pollution "shed the skin", similar to the skin when burned by the sun, and are replaced by new cells. But for people with the underlying conditions mentioned above, that process can be slower and they may need medical attention or medications to restore their breathing to normal.
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