Modifiers matching pollutant:

• liquid,
• organic,
• airborne,
• typical,
• nutrient,
• harmful,
• external,
• gross,
• particulate,
• occupational,
• agricultural,
• inert,
• fine,
• microscopic,
• harmless,
• important,
• out,
• atmospheric,
• clean,
• dissolved,
• industrial,
• toxic,
• separate,
• sized,
• outside,
• possible,
• regulated,
• chemical,
• persistent,
• common,
• wet,
• primary,
• real,
• environmental,
• hazardous,
• major,
• visible,
• hydrophobic,
• additional,
• tiny,
• outdoor,
• large,
• floating,
• soluble,
• everyday,
• up,
• estrogenic,
• lipophilic,
• smaller,
• urban,
• solid,
• potential,
• coarse,
• size,
• gaseous,
• damaging,
• home,
• conventional,
• specified,
• dangerous,
• unwanted,
• natural,
• undesirable,
• anthropogenic,
• indoor,
• biodegradable,
• old,
• powdery,
• irritating,
• insoluble,

Simple categories matching outdoor:

• application,
• activity,
• antenna,
• implement,
• game,
• area,
• gear,
• critter,
• sport,
• event,
• training,
• crop,
• pursuit,
• entertainment,
• modification,
• subject,
• bath,
• umbrella,
• apparel,
• possession,
• resource,
• material,
• cover,
• illumination,
• task,
• location,
• decor,
• thing,
• works,
• structure,
• site,
• wrap,
• optics,
• surface,
• item,
• machinery,
• instrument,
• fun,
• worker,
• table,
• piece,
• track,
• pet,
• wall,
• contest,
• usage,
• instruction,
• stadium,
• care,
• balcony,
• appliance,
• glove,
• medium,
• sound,
• leather,
• stuff,
• work,
• condition,
• shelter,
• source,
• garment,
• planting,
• flower,
• environment,
• cookware,
• treatment,
• system,
• bird,
• pastime,
• space,
• job,
• substance,
• predator,
• injury,
• affair,
• lover,
• feature,
• speaker,
• ornamentation,
• excursion,
• court,
• occupation,
• device,
• protection,
• occurrence,
• communication,
• experience,
• occasion,
• facility,
• information,
• adventure,
• object,
• lamp,
• tank,
• jacket,
• profession,
• place,
• advertising,
• obstruction,
• industry,
• labor,
• pest,
• clothes,
• skill,
• organization,
• tent,
• antigen,
• club,
• building,
• seeker,
• property,
• person,
• amphitheater,
• unit,
• sign,
• chair,
• recreation,
• use,
• artifact,
• covering,
• ornament,
• home,
• clothing,
• business,
• container,
• fire,
• season,
• graphics,
• carnival,
• article,
• part,
• user,
• enclosure,
• lighting,
• construction,
• attraction,
• tag,
• loudspeaker,
• module,
• art,
• amusement,
• animal,
• firework,
• installation,
• function,
• noise,
• zone,
• picture,
• exhibition,
• venue,
• product,
• workplace,
• employee,
• danger,
• group,
• plant,
• party,
• publicity,
• pavement,
• performance,
• equipment,
• situation,
• outerwear,
• paving,
• celebration,
• advertisement,
• color,
• cat,
• variable,
• elements,
• opening,
• ceremony,
• market,
• insect,
• maintenance,
• impact,
• enjoyment,
• trade,
• support,
• pollutant,
• arena,
• obstacle,
• tool,
• soil,
• vehicle,
• gathering,
• setting,
• barrier,
• project,
• duty,
• education,
• waste,
• enthusiast,
• contaminant,
• show,
• atmosphere,
• furnishing,
• position,
• endeavor,
• water,
• particle,
• attire,
• theme,
• shoes,
• shrub,
• scene,
• road,
• allergen,
• chemical,
• assembly,
• ornamental,
• furniture,
• wood,
• package,
• room,
• lot,
• fabric,
• service,
• accessory,
• hazard,
• footwear,
• ride,
• program,
• adventurer,
• power,
• light,
• production,
• toy,
• festival,
• sportsman,
• component,
• display,
• substrate,
• fixture,
• drain,
• decoration,
• arrangement,
• concert,
• play,
• professional,