Pollen dynamics of the family cereals (Poaceae) in the Ivano-Frankivsk atmosphere air
M. Mylenka, G. Melnichenko
Institute of Natural Sciences of the Vasyl Stefanyk Precarpathian National University
201, Galytsca St., Ivano-Frankivsk 77008, Ukraine
The contribution of Poaceae pollen in the aeropalinospectrum of Ivano-Frankivsk urboecosystem has been analyzed. The percentage of pollen grains in the qualitative composition of annual pollen precipitation was 16.9. The dynamics of the pollen concentration in the air of the city has been investigated. The beginning and the end of pollination, the appearance of the first and the last pollen grains, the days with the biggest contents of pollen and also the pollination duration was determined. Poaceae season duration in the urboecosystem of Ivano-Frankivsk was calculated by means of «the 95% method». It lasted 69 days; the beginning of pollen season – May, 21 the end – July, 28. The biggest pollen concentrations were observed from the second decade of May till the middle of July, the exception was the days with high humidity and precipitation. Maximum pollen concentration (285, p.g / m³) was recorded on June, 28. Random pollen grains were found in the air of the city till September, 20. A positive correlation between the content of pollen grains and air temperature has been determined.
Keywords: pollen, Poaceae, airborne pollen spectrum, pollen season, Ivano-Frankivsk