Houston: At least four workers have been killed and one seriously injured after an hazardous chemical leak at an industrial plant in the US state of Texas.
The accident occurred yesterday at a DuPont plant in La Porte on the eastern outskirts of Houston. Officials believe a leaky valve was partly to blame for chemical accident.
"There are no words to fully express the loss we feel or the concern and sympathy we extend to the families of the employees and their co-workers," manager of the plant in La Porte, Randall Clements said.
"We are in close touch with them and we are providing them every measure of support and assistance at this time", he said.
The chemical is used to produce the rotten-egg smell in natural gas, making natural gas leaks more noticeable, but in high doses it can cause vomiting, coma, and death, according to federal Agency for Toxic Substances & Disease Registry.
The foul-smelling gas spread throughout the area and put the region on edge, but officials said yesterday it had dissipated and was not dangerous.
Neighbours reported smelling the chemical's odour, but the company said it diffused in the air and did not pose a risk. Emergency responders monitored the air and concluded that a shelter-in-place order was not necessary.