Hebei Xingbai Pharmaceutical Group Co., Ltd. main products enramycin and aureomycin. In the pharmaceutical production process, extraction, separation, solvent distillation, transportation, storage and recovery of volatile gases, hydrogen sulfide, carbon dioxide, ammonia and other harmful gases, direct emissions will cause air pollution, people contact for a long time, will produce dizziness, headache, vomiting and other symptoms, serious will endanger life.