Table 1 The detailed information on sample origin.
Sampling place | Sewage sludge ash (SSA) samples | Air pollution control system residues (APC) samples | Fluidized bed samples (FB) |
|---|---|---|---|
“Gdańsk Wschód” Acronym: Gda | Sample 1: July 2014 Sample 2: November 2015 Sample 3: November 2016 Sample 4: September 2018 Sample 5: February 2019 Sample 6: March 2021 Sample 7: June 2021 | Sample 1: November 2015 Sample 2: April 2016 Sample 3: November 2016 Sample 4: September 2018 Sample 5: February 2019 Sample 6: November 2019 Sample 7: June 2021 | Sample 1: September 2018 Sample 2: June 2021 |
“GOŚ Łódź” Acronym: Lod | Sample 1: June 2015 Sample 2: November 2015 Sample 3: April 2016 Sample 4: April 2016 Sample 5: July 2016 Sample 6: May 2018 Sample 7: February 2021 | Sample 1: November 2015 Sample 2: February 2016 Sample 3: April 2016 Sample 4: July 2016 Sample 5: February 2021 | Sample 1: June 2018 |
“GOŚ Dębogórze” Acronym: Gdy | Sample 1: June 2016 Sample 2: March 2021 Sample 3: June 2021 | no samples collected | Sample 1: June 2021 |