Is there any specific guideline about the microbiological environmental monitoring in hazardous manufacturing sites (Only in operation state). I want to know the required regulatory about monitoring such these places. Is that necessary or not? Because in during manufacturing and processing these products, the operator must be taken rough specific suit protection. and also the air and surface of these sites have many hazardous aerosol and If microbial monitoring was performed, the whole of plates, air sampler and etc, were contaminated with dangerous powder. I want some documents that guide me about the issues. My means about the hazardous products are especially Those products that be used for cure cancers (like Capecitabine, Imatinib, Lenalidomide and etc). Thanks