Complex sentence: The asbestos fibre count at the mine and other facilities was regularly measured at 1000 parts per cm 3 this is in stark contrast to the health department guidelines of the 1950s that required less than 176 parts per cm 3.
Split into simpler sentences: The asbestos fibre count at the mine and other facilities was regularly measured at 1000 parts per cm 3 or more. This is in stark contrast to the health department guidelines of the 1950s that required less than 176 parts per cm 3.