HHS-OASH-2026-0397-4952 https://www.regulations.gov/comment/HHS-OASH-2026-0397-4952 I submit this comment as healthcare professional Question 14 What scientific evidence exists regarding potential adverse environmental effects associated with RF radiation? Observation and documentation of trees in the vicinity of over 1,500 mobile phone base stations (2005 to 2026) and studies (2016, 2021) suggest a causal relationship between RF radiation and tree damage. The reason for the tree observation: After the Bamberg Appeal was published in 2004 – in which 130 medical doctors warned against expanding mobile phone networks – many residents living near mobile phone base stations contacted the initiative for help with health issues. We visited affected individuals at home, documented their symptoms, and took RF radiation measurements. We learned that many people became sick far below the legal limits. We urged all responsible authorities to start health investigations of the long-term-exposed residents. One example (see attached): https://mdsafetech.org/wp-content/uploads/2021/04/cell-tower-letter-2005-dr.-cornelia-waldmann-selsam-to-german-state-chancellery-.pdf But the desperately needed investigations have not been carried out. During our visits, the affected residents showed us that changes and damage to the trees started around the same time as their symptoms appeared. People and trees got sick at the same time! The tree damage was visible. Because we hoped to be able to show quickly the causal relationship between RF radiation and tree damage we started to document trees around mobile phone base stations. Please see the whole comment attached. Dr. med. Cornelia Waldmann-Selsam, Germany