Allergies & Pollen Count for San Jose, California

Today's Condition

2.8Low-Medium

Top Allergens:

Elm, Grass, Chenopods

Pollen Index

9.7 - 12 - High

Very high pollen levels. Symptoms are likely for most people with pollen allergies.

7.3 - 9.6 - Medium - High

High enough pollen levels that most allergy sufferers will notice symptoms.

4.9 - 7.2 - Medium

Moderate pollen levels. Many people with allergies may start experiencing symptoms.

2.5 - 4.8 - Low - Medium

Small amounts of pollen present. Highly sensitive individuals may notice mild symptoms.

0.0 - 2.4 - Low

Very little pollen in the air. Most people with pollen allergies will not experience symptoms.

Discussion

Concentration of pollen grains in the air for Friday will be falling in the low range. This relief in pollen levels is caused in part by falling temperatures, rising relative humidity and weaker winds.

Allergy Facts

Although most people only associate algae with green scum on the surface of ponds, algal cells are often found in the atmosphere in high concentrations. Some of these algae have even been shown to cause hay fever.