{"id":"HHS-OASH-2026-0397-1955","number":"1955","name":"P G","organization":"","posted":"2026-10-09T04:00Z","received":"2026-10-08T04:00Z","body":"See attached file(s)\n\nMobile telephony radiation exerts genotoxic action and significantly\nenhances the effects of gamma radiation in human cells\n2024\n\nAbstract. I previously reported chromosomal damage in human peripheral blood lymphocytes\n(HPBLs) induced by: a) mobile telephony (MT) electromagnetic fields (EMFs)/electromagnetic\nradiation (EMR), b) a high caffeine dose, and c) the combination of the two stressors. HPBLs\nfrom the same subjects exposed to gamma radiation at doses 0.1, 0.3, or 0.5 Gy, displayed more\naberrations than those exposed to MT EMFs or the high caffeine dose in a dose-dependent\nmanner. When the cells exposed to these gamma radiation doses were pre-exposed to a single\n15-min MT EMF exposure, the number of aberrations increased significantly more than the\nsum number of aberrations induced by the individual stressors in all subjects. Thus, MT EMF\nexposure at a power density ~136 times below the latest International Commission on Non-\nIonizing Radiation Protection (ICNIRP) exposure limit, apart from the fact that it is genotoxic\nby itself, significantly enhanced the genotoxic action of gamma radiation. Since gamma radiation\nat similar doses is applied for diagnostic and therapeutic purposes, people should be aware of the\nincreased risk during treatment periods. Comparison of the genotoxic action between MT EMF\nand gamma radiation shows that the ICNIRP limits are, at least, ~4.5×104 times less stringent\nthan the limits for gamma radiation.\n\nKey words: Electromagnetic fields — Mobile phone radiation — Gamma radiation — Human lym-\nphocytes — Chromatid aberrations — DNA damage","attachments":["https://downloads.regulations.gov/HHS-OASH-2026-0397-1955/attachment_1.pdf"],"attachment_inventory":true,"withheld":false,"source":"https://www.regulations.gov/comment/HHS-OASH-2026-0397-1955","tags":["biology-metabolism","policy-standards"],"source_hash":"1c240c8db644a4c43a544318d9bfbdbdf3fd1bb2ac11f797bf1d1299f7e6038a","slug":"biology-metabolism-comment-1955","classification":{"id":"HHS-OASH-2026-0397-1955","body_sha256":"66c4e0a7202c99ca8fdee37fb5f9dfad0de8178ff2cae386dbfd52bcac51e479","status":"ai_reviewed","primary_topic":"research","topics":[{"id":"research","evidence":"ects of gamma radiation in human cells\n2024\n\nAbstract. I previously reported chromosomal damage in human per"},{"id":"mechanisms","evidence":"uman lym-\nphocytes — Chromatid aberrations — DNA damage"},{"id":"standards","evidence":"en MT EMF\nand gamma radiation shows that the ICNIRP limits are, at least, ~4.5×104 times less stringent\nthan the "}],"summary":"Provides an abstract reporting chromosomal damage and enhanced gamma-radiation effects in exposed human blood cells, with criticism of exposure limits. The full attachment is unread.","reviewed_at":"2026-10-10T00:02:05Z","review_method":"Complete published comment-body review; identical previously reviewed bodies reused with separate official IDs preserved. Attachments and external links not reviewed.","review_source_sha256":"39eb499225ac3288439a59442f5826f8fab14b44fbcde2b7898c9a0db573f96f","source_url":"https://rfsafe.net/hhs-comments/data/catalog.json","scope":"Original comment body; attachments excluded"},"forum_topics":["research","mechanisms","standards"],"primary_topic":"research","forum_title":"Provides an abstract reporting chromosomal damage and enhanced gamma-radiation effects in exposed human b…"}