pollution, smoke, factory
city, sun, clouds
banner, protection, pollution
earth, globe, protection
contaminated, water, glass
ink, water, paint
air pollution, smoke, environment
factory, chimney, smoke
pollution, rubbish, waste
environmental, pollution, environment
earth, globe, protection
fishing nets, networks, fishing
dock, cable innovator, air pollution
tire, rubber, pollution
industry, environmental pollution, smog
