Alessandro MorettiPh.D.Italy
Laser-Based Additive ManufacturingPublished
Dec 16, 2025
Pesticide Chemical Residue Contamination
Pesticide-residue contamination arises from organic and inorganic deposits, which settle via sprays on surfaces. This layer, it clings tenaciously to metals like steel or aluminum, setting it apart from mere dust through chemical stubbornness that resists water. Laser cleaning proves effective here, vaporizing residues selectively, influenced from the beam's precision that spares the base material.
Safety Information
Critical safety data for laser removal operations
Fire/Explosion Risk
low
Toxic Gas Risk
high
Visibility Hazard
moderate
Required Personal Protective Equipment
Respiratory Protection
PAPR
Eye Protection
goggles
Skin Protection
full_suit
Hazardous Fumes Generated
| Compound | Concentration | Exposure Limit | Hazard Class | Status |
|---|---|---|---|---|
| Hydrogen Cyanide | 2.5 mg/m³ | 5 mg/m³ | toxic | ✓ Within Limit |
| Hydrogen Chloride | 7 mg/m³ | 7 mg/m³ | corrosive | ✓ Within Limit |
| Phosgene | 0.4 mg/m³ | 0.4 mg/m³ | toxic | ✓ Within Limit |
| Polycyclic Aromatic Hydrocarbons (PAHs) | 1.2 mg/m³ | 0.2 mg/m³ | carcinogenic | ⚠️ Exceeds Limit |
Ventilation Requirements
Air Changes Per Hour
12
Exhaust Velocity
0.5 m/s
Filtration Type
carbon
Particulate Generation
Respirable Fraction
80%
Size Range
0.1 - 10 μm
Substrate Compatibility Warnings
- •Thermal decomposition may etch or discolor metal substrates
- •May generate corrosive residues on substrate surface
- •Avoid laser cleaning on thin or heat-sensitive materials
