> 173 fatalities
> Destruction of civil infrastructure within a 1-km radius
> Cyanide pollution
> Site rehabilitation
Fire broke out at 10:50 pm at the site of a logistics company, operating since 2011 in the Tianjin port sector with a floor area covering 46,000 m². At the time of the accident, the company had been storing on-site several types of hazardous substances: calcium carbide, toluene diisocyanate, ammonium nitrates, potassium and sodium, as well as 700 tonnes of sodium cyanide.
As fire-fighters were attacking the blaze with water, 2 expl [...]
Two explosions ripped through a petrochemical complex at night
The blasts occurred around 3 am in the storage zone of a petrochemical plant: 2 tanks ignited and their floating roofs were damaged. The 1st tank contained 11,300 m³ of pyrolysis gasoline (a mix of diesel, butene, toluene and butadiene). The 2nd tank, located 300 m away, was holding 48,000 m³ of naphtha. On-site fire-fighters, backed up by neighbouring facilities' response teams, arrived on the scene in large numbers. The complex operator activated the internal emergency plan and n [...]
In a chemical plant, a leak of effluents containing acetonitrile (a harmful and flammable solvent) from the process wastewater system lead to groundwater contamination. As the network was used only sporadically, the duration of the leak could not be accurately determined. A maximal estimate gave 557 days. The potential loss is estimated to be 61 t of acetonitrile.
Wells were established to try to recover the pollutant through pumping and to sample the groundwater. Three tonnes of acetonitrile were recovered by pumping operations over a period [...]
For 30 hours, 66 t of nickel sulphate, from a metallurgical plant producing nickel cathodes and 50,000 t of nickel-based chemicals, spilt into the Kokemaki River. The highest concentration of nickel measured in the river was 8,800μg/l for an instant environmental standard of 34μg/l, and an average concentration limited to 1μg/l. Significant mortality of mussels was observed. Mortality of the species Unio crassus (listed in the Habitats Directive) occurred 5-7 days after the pollution release. It was estimated that between 1 and 1.1 million spec [...]
A longitudinal rupture occurred at approximately 6 a.m. on a crude oil pipeline (DN 500, buried depth: 1 m in clayey soil; commissioning date: 1965; pressure: 69 bar) at 1.5 km from a nature reserve. No disturbance or pressure surges in the pumping operation were observed before the accident. The pipeline was shut down and isolated when alarms sounded in the control room. Soil and trees over 6.4 ha were polluted by hydrocarbons.
After locating the leak, the operator initiated its safety and intervention plan (SPI) at around 8 a.m. A safet [...]