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What is Aeroallergens?

Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.

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Glossary

A cold core low is a low-pressure system where the coldest temperatures are found near the center. These systems are often...

Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...

A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.

Local winds that blow from slopes to peaks as a result of the heating of the top slopes without being affected by general...