id	keyword
binhm-421	et al
binhm-421	metals
binhm-421	rigidus
binhm-421	plant
binhm-421	roots
binhm-421	area
binhm-421	accumulation
binhm-421	lead
binhm-421	station
binhm-421	juncus
binhm-421	pollution
binhm-421	study
binhm-421	soil
binhm-421	culm