ORIGINAL RESEARCH
Changes in Element Content of Birch Leaves
(Betula pendula Roth) in Polluted Air
Petr Hrdlička1, Emanuel Kula2
Pol. J. Environ. Stud. 2011;20(3):661-670
LETTERS TO EDITORS
The Content of Microelements and Trace Elements in Raw Milk from Cows in the Silesian Region
Z. Dobrzański1, R. Kołacz1, H. Górecka2, K. Chojnacka2, A. Bartkowiak1
Pol. J. Environ. Stud. 2005;14(5):685-689