Advection fogs over Newfoundland typically form when warm moist air from the ocean moves across cold water near the coast, causing the warm air to cool and condense into fog. The source of condensation nuclei for these advection fogs is primarily sea salt aerosols. Sea salt aerosols are tiny particles produced when waves break and send water droplets into the air. These water droplets then evaporate, leaving behind the salt particles, which can act as cloud condensation nuclei. In addition to sea salt aerosols, other sources of condensation nuclei for advection fogs over Newfoundland include smoke particles, dust particles, and pollution particles.