Volcanic ash pollution from Mt Spurr eruption, August 1992, and man selling face masks to filter the ash.
Volcanic ash pollution from Mt Spurr eruption, August 1992, and man selling face masks to filter the ash.
Keywords: air pollution, AK, Alaska, America, Anchorage, ash, dust mask, ecology, environment, geology, masks, Mt. Spurr, nature, North America, outdoors, pollution, rim of fire, United States of America, USA, volcanic ash, entrepreneur, mask, dust
