Plant in Zhangzhou , Fujian province , is used to make a toxic chemical . Nineteen people required medical treatment after blast caused by oil leak . Comment: It is the second accident at the controversial plant in 20 months . It took 177 fire engines and 829 firefighters to bring blaze under control .
Plant in Zhangzhou , Fujian province , is used to make a toxic chemical . Nineteen people required medical treatment after blast caused by oil leak . Plant produces paraxylene , which can cause eye , nose and throat irritation . It is the second accident at the controversial plant in 20 months . It took 177 fire engines and 829 firefighters to bring blaze under control .