Photograph credits

• National Institute for Occupational Safety and Health (NIOSH) from USA, Public domain
• National Institute for Occupational Safety and Health (NIOSH) from USA, Public domain
• Newfoundlandguy, CC BY-SA 4.0
• Kyu3a, CC BY-SA 4.0
• Savannah River Site, Public domain
• darkday from Brisbane, Australia, CC BY 2.0
• Publishing, CSIRO, CC BY 3.0
• Jdvillalobos, CC BY-SA 3.0