After two days of excavation, police in Dong Nai Province, Vietnam, had discovered more than 42 metric tons of hazardous waste at a lamp factory in the provincial capital.
The waste included more than 27 metric tons of contaminated glass pieces in the yard and nearly 15 metric tons of wastewater in a concrete cellar. Tests showed that the wastewater had a pH reading seven times the permitted level and that the glass pieces contained mercury and sulfur, which can become highly toxic if not handled properly.