Data Destruction Chemical and Physical Methods (Degaussing, Shredding Dust, Chemical Destruction — Occupational Exposure) — outdoor safety profile
Moderate riskNot medical, veterinary, or professional safety advice, and not a substitute for a qualified professional — consult one. Full disclaimer →
Data destruction services process millions of hard drives, SSDs, and storage media annually — the US data destruction market reached $5.4 billion in 2023.
What is this product?
Data destruction services process millions of hard drives, SSDs, and storage media annually — the US data destruction market reached $5.4 billion in 2023. Physical shredding of hard drives generates metallic dust containing aluminum, neodymium (rare earth magnets), cobalt (platter magnetic coating), and trace amounts of lead solder — particles 1-100 microns, respirable. OSHA PEL for aluminum dust: 15 mg/m3 total, 5 mg/m3 respirable. Industrial hard drive shredders process 500-2000 drives/hour, generating significant dust loads. Degaussing (magnetic erasure) uses strong magnetic fields (7,000-20,000 Gauss) — no chemical hazard but does not physically destroy media. Chemical data destruction methods (used for SSDs where degaussing is ineffective) include acid dissolution and incineration. NIST SP 800-88 Rev. 1 defines three levels: Clear, Purge, and Destroy. SSD destruction is more complex than HDD — standard shredding may leave recoverable NAND flash chips if particle size exceeds 2mm.
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Platter Coating
Solder
Platter Substrate
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Sources (9)
Citations carried on this product's ALETHEIA record. A bracketed number in the text links to its entry here.
- ALETHEIA Safety Database — expert_curation
- NIST SP 800-88 Rev. 1 + OSHA Metal Dust Exposure Limits (NIST SP 800-88 Rev. 1 (2014); 29 CFR 1910.1000 Table Z-1 (PELs)) (2014) · USA — regulation
- IARC Monographs Volume 86: Cobalt in Hard Metals and Cobalt Sulfate, Gallium Arsenide, Indium Phosphide and Vanadium Pentoxide (2006) — regulatory (inherited from a compound record)
- ATSDR Toxicological Profile for Cobalt (2004) — report (inherited from a compound record)
- CDC - Lead Poisoning Prevention — cdc (inherited from a compound record)
- WHO - Lead Poisoning Fact Sheet (2024) — who (inherited from a compound record)
- ATSDR: Toxicological Profile for Manganese — Manganism, Occupational Exposure, Drinking Water Health Advisory, Neurological Endpoints, and Welding Fume Context (2012) — regulatory (inherited from a compound record)
- US EPA IRIS: Manganese — Reference Dose, Inhalation Reference Concentration, Neurotoxicity Profile, and Drinking Water Health Advisory (0.3 mg/L, 0.1 mg/L chronic) (2010) — regulatory (inherited from a compound record)
- US Occupational Safety and Health Administration (OSHA) · USA — regulatory
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