The range of 60-70 decibels sound pressure level is about as loud as normal conversation in 1 meter distance.
Flammable, Radioactive Sinkholes. Lesser known in the mainstream media, however, is frackingâs link to massive sinkholes appearing overnight and leaking radiation across the nation.
Sinkholes occur worldwide; Texas is one of the U.S. âhot spotsâ for sinkholes. Structures built on limestone and sandstone bedrock can be especially vulnerable. Acidic water from rain and ruptured pipes can erode the bedrock, forming cavities. A sudden influx of rain after a dry period can trigger development of sinkholes.