Hazardous chemicals have been found in water samples collected from the site of a persistent underground fire in the Korangi Creek area of Karachi, according to a preliminary report by Pakistan Petroleum Limited (PPL).
The fire, on March 29 during a 1,200 feet drilling operation, has not yet been extinguished. Experts suspect that the fire was caused by the accidental release of biogenic methane, caused by underground plaque disturbances.
The initial chemical analysis detected high levels of benzene, toluene and tetrachlorethylene, said Express News.
The tetrachlorethylene was measured to 33 micrograms per liter, six times the safe limit of 5 micrograms. The benzene was recorded at 19 micrograms per liter, while Toluene reached 15 micrograms, both on triple the prescribed thresholds.
A slightly greater amount of O-Xylene was also present in the sample, although within a relatively marginal excess.
Despite these findings, it was found that the concentration of hydrocarbons was within the acceptable limits, which suggests that there is no row of immediate oil or gas in the water.
Experts warned that these chemicals are toxic and potentially flammable, warning that the situation could represent long -term risks for residents nearby.
Currently, fire brigade units are not implemented on the scene, and foam techniques are not being used to suppress the fire. The authorities said the district administration has sealed the affected area and is monitoring the fire, which according to the reports has increased by volume by 5% to 10% since last week.
The Sindh Ministry of Energy has not issued any statement on the matter. Meanwhile, Sui Southern Gas Company confirmed that none of its facilities is near the fire zone.
