The Effects of Forest Litter and Waterlogging on the Ecotoxicity of Soils Strongly Enriched in Arsenic in a Historical Mining Site
Katarzyna Szopka , Iwona Gruss , Dariusz Gruszka , Anna Karczewska , Krzysztof Gediga , Bernard Gałka , Agnieszka Dradrach
AbstractThis study examined the effects of waterlogging and forest litter introduced to soil on chemical properties of soil pore water and ecotoxicity of soils highly enriched in As. These effects were examined in a 21-day incubation experiment. Tested soil samples were collected from Złoty Stok, a historical centre of arsenic and gold mining: from a forested part of the Orchid Dump (19,600 mg/kg As) and from a less contaminated site situated in a neighboring forest (2020 mg/kg As). An unpolluted soil was used as control. The concentrations of As, Fe and Mn in soil pore water were measured together with a redox potential Eh. A battery of ecotoxicological tests, including a bioassay with luminescence bacteria Vibrio fischeri (Microtox) and several tests on crustaceans (Rapidtox, Thamnotox and Ostracodtox tests), was used to assess soil ecotoxicity. The bioassays with crustaceans (T. platyurus, H. incongruens) were more sensitive than the bacterial test Microtox. The study confirmed that the input of forest litter into the soil may significantly increase the effects of toxicity. Waterlogged conditions facilitated a release of As into pore water, and the addition of forest litter accelerated this effect thus causing increased toxicity.
|Journal series||Forests, ISSN 1999-4907, (N/A 100 pkt)|
|Publication size in sheets||0.6|
|Keywords in English||mine dump; forest; beech litter; pore water; incubation; toxicity; microbiotests; Microtox; Rapidtox; Thamnotox; Ostracodtox|
|License||Journal (articles only); published final; ; with publication|
|Score||= 100.0, 22-04-2021, ArticleFromJournal|
|Publication indicators||= 0; = 0; : 2018 = 0.943; : 2018 = 2.116 (2) - 2018=2.453 (5)|
|Citation count*||1 (2021-05-15)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.