Nano-platinum (PGM nanoparticles) in the yard and garden
Moderate risk for your yardEmitted from catalytic converters (0.02-5 ng/m³ roadside air). Accumulates in roadside soil, dust, and stormwater. Bulk platinum is biologically inert but nano-form shows catalytic activity in biological systems — both antioxidant (ROS scavenging) and pro-oxidant depending on size and surface chemistry. Used in luxury skincare (La Prairie, claims antioxidant). Occupational exposure in automotive/jewelry industry.
What is nano-platinum (pgm nanoparticles)?
The IUPAC name is platinum.
Also known as: PLATINUM, 7440-06-4, Platinum Black, Platinum sponge.
- IUPAC name
- platinum
- CAS number
- 7440-06-4
- Molecular formula
- Pt
- Molecular weight
- 195.08 g/mol
- SMILES
- [Pt]
- PubChem CID
- 23939
Risk for people, pets,
Moderate riskEmitted from catalytic converters (0.02-5 ng/m³ roadside air). Accumulates in roadside soil, dust, and stormwater. Bulk platinum is biologically inert but nano-form shows catalytic activity in biological systems — both antioxidant (ROS scavenging) and pro-oxidant depending on size and surface chemistry. Used in luxury skincare (La Prairie, claims antioxidant). Occupational exposure in automotive/jewelry industry.
Regulatory consensus
2 regulatory and scientific bodies have classified Nano-platinum (PGM nanoparticles). The classifications differ — that's the data.
| Agency | Year | Classification | Notes |
|---|---|---|---|
| EU | 2013 | Cosmetics Regulation (EC) 1223/2009 — nano-Pt must be notified to CPNP if used in cosmetics | |
| OSHA | 2024 | PEL 0.002 mg/m³ (soluble Pt salts); metallic Pt nanoparticles not specifically regulated |
Regulators apply different standards of evidence — animal-data weighting, exposure-pattern assumptions, epidemiological power thresholds — which is why two scientific bodies can review the same data and reach different conclusions. The disagreement is the data.
Where your yard encounter nano-platinum (pgm nanoparticles)
- Cosmetics
- Automotive
- Supplement
- Industrial
Safer alternatives
Lower-risk approaches that achieve a similar outcome to Nano-platinum (PGM nanoparticles):
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Palladium nanoparticles
Trade-offs: Less thermally stable. Susceptible to sulfur poisoning. Different selectivity for some reactions.Relative cost: 0.3-0.5× platinum
-
Cerium oxide nanoparticles (nanoceria)
Trade-offs: Lower catalytic activity. Potential pulmonary toxicity at high exposure. Self-regenerating redox properties.Relative cost: 0.01× platinum
Frequently asked questions
Is nano-platinum (pgm nanoparticles) safe for your yard?
Emitted from catalytic converters (0.02-5 ng/m³ roadside air). Accumulates in roadside soil, dust, and stormwater. Bulk platinum is biologically inert but nano-form shows catalytic activity in biological systems — both antioxidant (ROS scavenging) and pro-oxidant depending on size and surface chemistry. Used in luxury skincare (La Prairie, claims antioxidant). Occupational exposure in automotive/jewelry industry.
See Nano-platinum (PGM nanoparticles) in the outdoor app
Look up products containing nano-platinum (pgm nanoparticles), compare to alternatives, and explore the full data record.
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Reference data, not professional advice. Aggregates publicly available regulatory and scientific data; not a substitute for veterinary, medical, legal, or regulatory advice. Why we built ALETHEIA →