Pollen anomalies in Scots pine (Pinus sylvestris L.) were studied under different ecological conditions. The results obtained testified to an adverse effect of technogenic pollution on the grain quality in Scots pine. The comparison of anomaly/fertility values using χ2-criterion revealed the significant differences between the test plots located under contrasting ecological conditions. The cytological method applied is considered as a very sensitive one for the assessment of the influence of unfavorable factors on Scots pine ecosystems.