By KHT Staff. Images via Taiwan City Govt/local news sources.
TAINAN — Fourteen people were injured after a fire at an empty lot in Tainan’s Anan District (安南區) triggered repeated explosions just after 1 a.m. Saturday, at an empty lot in Tainan’s Anan District. The fires damaged 11 homes, 13 civilian vehicles and 11 emergency vehicles.
The fire broke out near Haidian Road Section 2 (海佃路二段) and was extinguished at 5:20 a.m., according to the Tainan City Government.
The fire began at an empty lot, not a registered factory
The site was in a residential area, not an operating factory. Officials say industrial waste had been stored there, including aluminum-magnesium alloy waste, aluminum materials and used industrial oil.
Police and environmental officials are investigating the owner, the person who used the land, and intermediaries linked to the waste. The city said it had identified a company registered in Kaohsiung and involved in metal-related business, but has not said that company was responsible for the fire or named a suspect.
Early reports suggesting that a property developer had left the material at the site have not been confirmed by authorities.
The explosion came nearly two hours after the initial call
Firefighters received the first report at 1:12 a.m. and initially treated the incident as a waste fire. The Fire Bureau sent 53 vehicles and 109 personnel.
At 2:47 a.m., a powerful explosion tore through the site as crews were fighting the blaze. Officials said the variety of materials present made the scene unusually dangerous. Firefighters used foam and fixed water monitors, while withdrawing personnel from the immediate area.
The blast damaged homes within roughly 100 meters. Residents reported shattered windows, buckled metal doors and flying debris.
Three firefighters and 11 civilians were injured. The city said all were taken or presented themselves for medical treatment. No deaths have been reported.
Why the materials were so dangerous
Officials have confirmed the presence of aluminum-magnesium alloy waste and used oil, but have not yet released a full inventory or the precise quantities involved.
Magnesium-containing metal waste can be dangerous when it has been reduced to shavings or powder. Chemical specialists say fine metal particles have much more surface area than solid pieces of metal and can burn intensely. At high temperatures, contact with water or water vapor can produce violent reactions, including flammable hydrogen gas.
That helps explain why firefighters treated the scene as a possible water-reactive-material fire. It does not, however, establish that rainwater or firefighting water caused Friday’s explosion. The exact ignition source and sequence of chemical reactions remain under investigation.
The damage was extensive
The city’s latest count lists damage to 11 row houses, eight fire engines, two fire-investigation vehicles, one ambulance and 13 civilian vehicles.
About 40 households may have been affected. The Anan District Office said a nearby temple was available for temporary shelter, while officials compile damage reports and help residents pursue compensation.
Air monitoring found no broader emergency, but residents were warned
The Environmental Protection Bureau and a technical team from the Ministry of Environment monitored air quality and took pollution samples around the site.
The city said handheld monitoring equipment found no abnormal readings for the gases it tested. However, ammonia levels in dense smoke reached 20 parts per million, a concentration that can strongly irritate the eyes, nose and throat.
Because the wind was blowing toward Anan and Yongkang districts, officials advised residents downwind to keep windows closed, limit time outdoors and wear masks if they needed to go outside.
What investigators still need to establish
Key unanswered questions include:
- Who brought the waste to the lot, and under what arrangement?
- What materials were present, in what amounts and from where?
- Was the storage illegal, and which environmental or fire-safety rules were breached?
- What started the original fire?
- What caused the later explosion or explosions?
Hazardous industrial waste appears to have been stored in a residential neighborhood, and done so without any notice to anyone who could have alerted firefighters about what they were walking into. The city says violations could lead to penalties under the Air Pollution Control Act and Waste Disposal Act, while police and prosecutors determine whether criminal charges are warranted.
Sources: Tainan City Government; United Daily News; United Daily News chemical explainer
