id	keyword
esrj-34299	species
esrj-34299	metal
esrj-34299	site
esrj-34299	metal species
esrj-34299	organic
esrj-34299	fraction
esrj-34299	figure
esrj-34299	sediments
esrj-34299	carbonate
esrj-34299	oil
esrj-34299	area
esrj-34299	crude