Freight carried dangerous cargo

Hydrochloric acid
Use: Metal cleaner Danger: Highly corrosive. If inhaled, can cause a burning sensation, cough, labored breathing and shortness of breath. Contact with skin or eyes can cause severe burns.

Fluorosilicic acid
Uses: Fluoridating drinking water, electroplating Danger: Severe burns to skin, lungs, nose Serious inhalation or contact burns might not be apparent for hours.

Glacial acetic acid
Use: Glass solvent Danger: If inhaled, can cause a burning sensation, headache, dizziness and shortness of breath. Contact with skin can cause pain, redness and severe burns.

Ethyl hexyl phthalate
Uses: Plasticizer in making flexible products such as PVC piping Danger: Causes cough or sore throat if inhaled.

Propylene glycol
Uses: Metal de-icer, solvent used in food Danger: Irritates skin, throat, eyes. A colorless liquid. Less harmful if splashed or inhaled, but ingestion can be fatal

Tripropylene
Uses: Detergents and some plastics Danger: Irritating to eyes, nose and throat; if inhaled, the chemical can cause dizziness and unconsciousness. Sources: National Institutes of Health, Cornell University