No Surges of Saharan Dust Forecast This Week. Good Air Quality Continues.

Air quality across the entire Eastern Caribbean, including Trinidad and Tobago are at good levels, with no surges of Saharan Dust forecast through the next 7 days. Enjoy the outdoors!

All islands across the Eastern Caribbean are experiencing good air quality levels, based on U.S. standards as of 3:00 PM Sunday 10th November 2019. No surges of Saharan Dust is forecast to move across the region through the next 7 days, though minimal concentrations will remain in our atmosphere throughout the week. This is normal. Air quality is forecast to remain at good levels throughout the week.

Air Quality Across the Eastern Caribbean and the Greater Antilles, according to Air Quality Monitoring Stations in the region, with the AQI based on U.S. Standards.
Air Quality Across the Eastern Caribbean and the Greater Antilles, according to Air Quality Monitoring Stations in the region, with the AQI based on U.S. Standards.

The Environmental Management Agency (EMA) air quality monitoring stations are presently recording AQI values at good levels, based on T&T’s air quality standards, while other air quality monitoring stations are reporting air quality at good levels, based on United States standards.

Visibility across Trinidad and Tobago remains at 10 Kilometers and above.

Air Quality Index at Environmental Management Agency's (EMA) Air Quality Monitoring Stations Across Trinidad. Note these AQI values are to Trinidad and Tobago air quality standards.
Air Quality Index at Environmental Management Agency‘s (EMA) Air Quality Monitoring Stations Across Trinidad. Note these AQI values are to Trinidad and Tobago air quality standards.

What we expect

Based on the latest dust modeling, no surges of dust are forecast to move across the region over the next 5-7 days.

00Z November 10th, 2019 CAMS Copernicus Atmospheric Monitoring Tropical Atlantic Dust Aerosol Optical Depth showing the thicker plumes of Saharan Dust mainly remaining across the Eastern Atlantic. Credit: Weathermodels.com
00Z November 10th, 2019 CAMS Copernicus Atmospheric Monitoring Tropical Atlantic Dust Aerosol Optical Depth showing the thicker plumes of Saharan Dust mainly remaining across the Eastern Atlantic. Credit: Weathermodels.com
5-Day Air Quality Index (based on United States EPA Standards), Saharan Dust Forecast For Trinidad and Tobago. With no Saharan Dust forecast to surge across the region, air quality remains at good levels.
5-Day Air Quality Index (based on United States EPA Standards), Saharan Dust Forecast For Trinidad and Tobago. With no Saharan Dust forecast to surge across the region, air quality remains at good levels.

Generally, through the next 5 days, air quality is forecast to remain at good levels across Trinidad and Tobago.

What does this mean for you?

For the general population through the end of the week, little to no impacts are forecast. For very sensitive groups, particularly those that have respiratory ailments, you may still continue to experience some difficulty in breathing, particularly during peak traffic periods.

Good Air Quality

Good Air Quality

AQI – 0 to 50

What does this mean for you?

At this level, air quality is considered satisfactory, and air pollution poses little or no risk to public health. It’s a great day to be active outside.

Who needs to be concerned?

No one.

What should you do?

Sensitive Groups: Sensitive groups, children and the elderly do not need special protection.

Air purification: It is recommended to run an air purifier in auto-mode, so it automatically reacts to changes in air quality.

Ventilation: It is good for ventilation.

Masks: No masks are needed.

Outdoor Activity: Very suitable for outdoor exercise and activities.  

The concentration of the dust that follows tropical waves depends on the strength of the wave as it moves off the West African Coast. This is because of stronger thunderstorms across Central Africa. As strong winds move downward and outward from these thunderstorms, the wind kicks up dust as it moves across parts of the Saharan Desert and transports it into the upper atmosphere. This “plume” of dust follows the axis of the wave as it progresses westward into the Atlantic.

Larger, more concentrated plumes of Saharan dust begin to occur in April and continue through November.

We’re in a period where the ITCZ and tropical waves shield Trinidad and Tobago from the Saharan Dust events. While tropical waves play a notable role in moving dust across the Atlantic and the Eastern Caribbean, as we move through July into September, these frequent tropical waves also aid in improving air quality.

Sensitive groups such as persons with respiratory ailments, children, the elderly and cardiopulmonary disease should take the necessary precautions during periods of reduced air quality.

Saharan Dust Precautions
Saharan Dust Precautions
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