Smoke billows from the site of an explosion in Tianjin, August 13, 2015. [Photo/CFP]

The young man from Central China's Hunan province also sustained a broken bone in his foot and bruises on his arms.

Despite the tragedy, Liao said he wants to continue his profession, because he was "loath to part with my comrades-in-arms."

Zhou Ti, a 19-year-old firefighter who was rescued on Friday morning, is in stable condition after being treated in thoracic surgery department of TEDA. He can have liquid food starting from Sunday morning.

Han Fengqun, a 50-something man who was rescued 50 meters away from a burst point on Saturday afternoon, however, is in critical condition for respiratory failure caused by serious lung damage, according to sources with the No. 254 hospital in Tianjin.

Local authorities are working on a compensation plan for residents in a community worst hit by the blasts, according to Zhang Chuanjie, an official with the Binhai New Area, where the warehouse was located.

The subsidies are expected to help the residents to take temporary dwellings in the next quarter, Zhang said, adding that it would take a long time for the damaged apartments to be revamped.

Located only about 600 meters away from the blast site, the community had two residents killed and nearly all doors and windows destroyed.

Covering more than 40,000 square meters, the complex accommodates more than 3,100 households in 44 high-rises.

The residents will be allowed into homes to get their property in the following days, Zhang said.

OFFICIAL MISCONDUCT?

The Supreme People's Procuratorate announced on Sunday it has begun to investigate whether there is any dereliction of duty involved in the explosions.

As of Sunday, no officials nor the company handling the warehouse of Ruihai International Logistics Co. Ltd, has been held accountable for the explosions, but the procuratorate said it will look into possible illegal acts, such as abuse of power or dereliction of duty and deal with those acts which may constitute crimes.

A Saturday commentary published by the newspaper affiliated to the top anti-graft watchdog said industrial tragedies revealed loopholes in China's law enforcement, urban planning and supervision, as it went on to question why several communities of over 5,600 households were located within 1,000 meters of the warehouse for dangerous chemicals.

"Until the moment of the explosions, the communities' developers and residents did not know they had lived right beside a 'volcano'," the commentary said.

"The sputtering flames engulfed not only lives and property, but also the sense of security," it said. "It again called public attentions to the question of 'how to guarantee people's lives and property'."