Bioindication using Scots pine for assessing environmental pollution Grigorii Kozlov, Mikhail Pushkarev, Petr Reuf, Roman Pau, Anastasia Orlova, Danila Solovev, Yaroslav Ionov, Stepan Shvidkoi, Artemiy Kozlov and Anastasia Romanova E3S Web of Conf., 215 (2020) 03003 Published online: 02 December 2020 DOI: 10.1051/e3sconf/202021503003