Variable
fluorene
dibenzo_ah_anthracene
acenaphthene
acenaphthylene
fluoranthene
benzo_ghi_perylene
naphthalene
pyrene
phenanthrene
gamma_HCH
benzo_a_pyrene
anthracene
inden_123cd_pyrene
precipitation_amount
benzo_bjk_fluoranthenes
benz_a_anthracene
chrysene