The effects of Mount St. Helens volcanic ash on the pulmonary function of 120 elementary school children.

@article{Johnson1982TheEO,
  title={The effects of Mount St. Helens volcanic ash on the pulmonary function of 120 elementary school children.},
  author={K. G. Johnson and D O Loftsgaarden and R A Gideon},
  journal={The American review of respiratory disease},
  year={1982},
  volume={126 6},
  pages={1066-9}
}
The 1977 Montana legislature funded an extensive Montana Air Pollution Study (MAPS). One hundred and twenty children in the fourth and fifth grades in Missoula, Montana had their pulmonary functions tested on 6 days during the 1979-80 school year. On May 18, 1980, Mount St. Helens erupted, resulting in very high total suspended particulates (TSP) levels due to ash (peak day = 11,054 micrograms/m3 24-hour average) through May 22. When these children returned to school on May 23, they had their… CONTINUE READING