Poisoned people receive treatment in a local hospital in Chifeng City of north China's Inner Mongolia Autonomous Region, August 5, 2009. A tank truck spilled ammonia while transmitting liquid ammonia into the workshop in the Chifeng Pharmacy Plant on Wednesday, with over 30 people poisoned as local source reported. Local rescue departments have blocked the leakage and evacuated personnel in 2 kilometers leeward of the venue.[Xinhua]