Top-Ranked Fine-Grained Categories of perchlorate: =>see poetic categories

• ionic:waste,
• new:contaminant,
• ionic:material,
• toxic:contaminant,
• toxic:chemical,
• harmful:contaminant,
• nasty:contaminant,
• anionic:material,
• soluble:contaminant,
• toxic:substance,
• toxic:waste,
• toxic:compound,
• inorganic:contaminant,
• unregulated:substance,
• sensitive:material,
• toxic:goitrogen,
• charged:contaminant,
• hydrated:salt,
• ionic:system,
• active:salt,
• polar:compound,
• anthropogenic:contaminant,
• explosive:material,
• explosive:residue,
• explosive:salt,
• soluble:compound,
• inorganic:salt,
• harmful:compound,
• undesirable:contaminant,
• environmental:chemical,
• explosive:chemical,
• ionic:substance,
• waterborne:contaminant,
• inorganic:compound,
• neutral:salt,
• energetic:material,
• energetic:compound,
• environmental:contaminant,
• explosive:constituent,
• toxic:residue,
• reactive:waste,
• toxic:halide,
• potential:contaminant,
• mobile:contaminant,
• sensitive:substance,
• conductive:substance,
• reactive:material,
• metal:salt,
• nonvolatile:compound,
• silver:salt,
• conductive:material,
• inorganic:constituent,
• inert:salt,
• soluble:chemical,