Correction: Strzałek et al. Activity of ¹³⁷Cs and ⁴⁰K Isotopes in Pine (Pinus sylvestris L.) and Birch (Betula pendula Roth) Stands of Different Ages in a Selected Area of Eastern Poland. Forests 2021, 12, 1205

The authors wish to make the following corrections to their paper [1]. In the original publication, there was a mistake in Figure 2 as published. On page 6—Figure 2A—on the y axis, the unit ⁴⁰K [Bq/kg wood] correctly reads ⁴⁰K [Bq/Mg wood]. The corrected Figure 2 appears below. The authors apologize for any inconvenience caused and state that the scientific conclusions are unaffected.