Modifiers matching pollution:

• industrial,
• particulate,
• airborne,
• environmental,
• local,
• hazardous,
• up,
• urban,
• solid,
• adverse,
• atmospheric,
• ambient,
• marine,
• significant,

Simple categories matching ambient:

• force,
• contaminant,
• condition,
• light,
• hazard,
• fumes,
• quantity,
• change,
• energy,
• sound,
• display,
• noise,
• data,
• interference,
• medium,
• event,
• genre,
• signal,
• water,
• fluid,
• illumination,
• gas,
• particle,
• lighting,
• pollution,
• source,
• track,
• information,
• stimulus,
• environment,
• air,
• debris,
• particulate,
• temperature,
• feature,