Silvers W S, Ledoux R A, Dolen W K, Morrison M R, Nelson H S, Weber R W
Allergy/Immunology Service, Fitzsimons Army Medical Center, Aurora, Colorado.
Ann Allergy. 1992 Nov;69(5):421-6.
Pollen patterns were compared between Vail, CO (8,200 feet elevation), Aspen, CO (7,900 feet) and Denver, CO (5,280 feet) from 1984 through 1988. Counts were obtained at all sites with a volumetric intermittent cycling rotating impaction sampler. Aspen and Denver were compared in 1984, and Vail and Denver from 1985 through 1988. While counts were generally lower in the mountain sites than Denver, certain pollens, especially trees, were quite high. Ragweed was essentially absent from Aspen and Vail, and chenopod-amaranth counts were very low. Cedar, pine, and aspen frequently pollinated despite active snowfall.
1984年至1988年期间，对科罗拉多州韦尔（海拔8200英尺）、阿斯彭（海拔7900英尺）和丹佛（海拔5280英尺）的花粉模式进行了比较。所有地点均使用容积式间歇循环旋转冲击采样器进行计数。1984年对阿斯彭和丹佛进行了比较，1985年至1988年对韦尔和丹佛进行了比较。虽然山区的花粉计数通常低于丹佛，但某些花粉，尤其是树木花粉，含量相当高。阿斯彭和韦尔基本没有豚草，藜科-苋科花粉计数也非常低。尽管有降雪，雪松、松树和白杨仍频繁授粉。
