Description:
<jats:title>ABSTRACT</jats:title><jats:p>In this paper we present data from the measurements of carbon isotopes (Δ<jats:sup>14</jats:sup>C and δ<jats:sup>13</jats:sup>C) from α-cellulose extracted from pine tree-rings. The samples were collected in four forests located in the most industrialized part of Poland, where coal mining and coal-based energy are an important branch of industry. The investigated period of time (1975–2012) covers the period of development in coal mining and other industry sectors. Stable isotope composition has been determined with using IRMS and radiocarbon concentration was determinate by AMS.</jats:p>