Variable
copper
precipitation_amount_1
dibenzo_ah_anthracene
benzo_ghi_perylene
zinc
chromium
arsenic
lead
benzo_j_fluoranthene
precipitation_amount_0
nickel
benzo_a_pyrene
cadmium
benzo_b_fluoranthene
inden_123cd_pyrene
benz_a_anthracene
benzo_k_fluoranthene