2015年CRI 天津爆炸仓库内化学品尚未查明

（单词翻译）

There are now 56 confirmed deaths, including 21 firemen, from the massive explosions and fire in the port city of Tianjin.

Of the 721 people who were injured during the incident on Wednesday, 25 remain in critical condition.

As of this evening, four sites are still on fire, but authorities say each situation is basically under control.

There was a small explosion at noon today.

More than 500 firefighters are still trying to put off the fires and the rescue operation is ongoing¹.

Rescuers found a survivor² earlier this morning.

The 19-year-old firefighter, named Zhou Ti, is from the Binhai New Area brigade of Tianjin's fire department.

He is said to be in stable condition.

Meanwhile authorities are still trying to find out what is exactly inside the warehouse³.

Designed to house dangerous and toxic⁴ chemicals, the warehouse was storing mainly ammonium nitrate, potassium nitrate and calcium⁵ carbide at the time of the blasts.

Gao Huaiyou, deputy director of Tianjin's work safety watchdog, says the company which owns the warehouse suffered severe damage and there are major discrepancies⁶ between the accounts of company management and customs records, which makes it difficult for them to identify the chemicals.

Authorities did find toxic chemicals at the explosion site, including cyanide stored in the area.

Hazardous⁷ substances have been detected from two drainage outlets⁸ near the blast site.

The concentration of Cyanide found in the water is said to be eight times higher than the national standards.

Liu Zuohong, an inspector⁹ from the environmental protection ministry¹⁰, says they are now taking steps to process the contaminated water.

"First, we have to close this cofferdam, the isolating¹¹ space between two adjacent steel bulkheads or decks, and then use the cement to fill it up. And we can see both these two water cubes have also been filled with cement."

In the meantime the municipal authorities of Tianjin also say that air pollutants¹² monitored around the blast sites reduced to normal level yesterday.

For more on the pollution conditions caused by the blast, we spoke¹³ earlier with He Jingjing from the Institute of international environmental law of the Academy of Social Sciences.