Saharan Dust Forecast: Moderate Air Quality Across T&T, Concentrations on the Decrease

Saharan Dust concentrations are on the decrease across Trinidad and Tobago. Mild to moderate concentrations are across T&T presently, reducing air quality to moderate levels and producing hazy skies across the islands. Much of the Eastern Caribbean, though hazy skies persist, air quality has returned to good levels.

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Presently, mild to moderate concentrations of Saharan Dust is present across Trinidad and Tobago, reducing air quality to moderate levels. This plume of Saharan Dust has caused moderate air quality across the Eastern Caribbean and the Greater Antilles over the last few days. However, as of 7:30 AM Wednesday 15th May 2019, most islands have now returned to good air quality levels. Over the next 5 days, Saharan Dust is forecast to fluctuate, gradually decreasing as the week progresses across Trinidad and Tobago. In areas near the vicinity of bushfires, air quality can near levels that are unhealthy for sensitive groups.

Air Quality Across the Eastern Caribbean as of 7:30AM Wednesday 15th May 2019.
Air Quality Across the Eastern Caribbean as of 7:30 AM Wednesday 15th May 2019.

At moderate air quality levels, unusually sensitive groups should consider reducing prolonged or heavy exertion.

At unhealthy for sensitive groups: There is an increasing likelihood of respiratory symptoms in sensitive individuals. Aggravation of heart or lung disease and possible premature mortality in persons with cardiopulmonary disease and the elderly. People with respiratory or heart disease, the elderly and children should limit prolonged exertion.

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Larger, more concentrated plumes of Saharan dust begin to occur in April and continue through November. This is due to stronger thunderstorms, typically associated with tropical waves, across interior Africa sending dust into the upper atmosphere.

5-Day Air Quality Index For Trinidad and Tobago.
5-Day Air Quality Index For Trinidad and Tobago.
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12Z 14th May 2019 CAMS Copernicus Atmospheric Monitoring Tropical Atlantic Dust Aerosol Optical Depth showing the plume of Saharan Dust across Trinidad and Tobago, decreasing in concentrations as the week progresses. However, a slight increase in dust levels is forecast by Sunday 19th May 2019 across T&T. Credit: Weathermodels.com
12Z 14th May 2019 CAMS Copernicus Atmospheric Monitoring Tropical Atlantic Dust Aerosol Optical Depth showing the plume of Saharan Dust across Trinidad and Tobago, decreasing in concentrations as the week progresses. However, a slight increase in dust levels is forecast by Sunday 19th May 2019 across T&T. Credit: Weathermodels.com

Related: Saharan Dust

With dry conditions persisting, bush fires will be on the rise. As Saharan Dust is forecast to persist across T&T throughout the week, sensitive groups such as persons with respiratory ailments, children, the elderly and cardiopulmonary disease should take the necessary precautions.

Saharan Dust Precautions
Saharan Dust Precautions
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