Late Summer/Early Fall Allergies

The mid-August through September period has persistent hot temperatures and an upsurge in allergic pollen. This can be classed as a moderate pollen season. Typically Chenopod or tumbleweed pollen increases in mid-August, lasting two to three weeks. Chenopod, namely Lamb’s Quarters, releases small numbers of pollen May through August. The increase in August pollen is due mainly to Kochia, Russian Thistle, Pigweed, Western Waterhemp, and other related weeds. For about a week, Ragweed appears during the Labor Day holiday. This pollen season can be aggravated by dust from grain or alfalfa harvest. At times, smoke from range or forest fires will produce an irritant factor which can further increase hayfever or asthmatic symptoms. Chenopod counts at peak levels range from 30 to 60 per 24-hour sampling period.


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