Bioassay\xa0or biological standardization is a\xa0type\xa0of scientific experiment typically conducted to measure the effects of a substance on a living organism and is essential in the development of new drugs and in monitoring environmental pollutants. Bioassay is used to detect biological hazards or give a quality assessment of a mixture. Bioassay is often used to monitor\xa0water\xa0quality and also sewage discharge and its impact on surrounding. It is also used to assess the environmental impact and safety of new technologies and facilities.