Overview The Tamil Nadu government has requested the Indian Institute of Technology - Madras (IIT-M) to conduct a scientific study on the harmful effects of microplastics on human health. This decision was communicated to the Madras High Court and stems from concerns about the consumption of food products like milk, coffee, tea, and hot sambar sold in plastic pouches. Key Developments Government Action Request to IIT-M: The government has formally requested IIT-M to investigate the impact of microplastics. Communication to High Court: Health Secretary P. Senthilkumar informed the court about the request on January 22, 2026 . Focus on Food Products: The study will specifically examine food items sold in plastic pouches. Research Findings PSG Institute Report: An interim report by PSG Institute of Medical Sciences and Research in Coimbatore highlighted the presence of Bisphenol A (BPA) in microplastics. BPA as Endocrine Disruptor: BPA is identified as an endocrine disruptor, raising concerns about potential health impacts. Cord Blood Analysis: Analysis of 10 cord blood samples revealed BPA concentrations ranging from 0.43 to 1.1578 µg/kg body weight (bw) . Exceeding Tolerable Limits: The average concentration of BPA exceeded the recommended tolerable daily intake (TDI) value of 0.2 ng/kg bw/day . Court Intervention Suo Motu Action: The judges suo motu impleaded the Union Health and Family Welfare Ministry and the State health department as respondents. Directive to Study Ill Effects: Both departments were directed to study the ill effects of microplastics on human health. UPSC Relevance This issue is relevant to GS3 (Environment and Ecology) , specifically concerning pollution and its effects on human health. It also touches upon GS2 (Health) and the role of government policies in addressing health hazards. The involvement of IIT-M highlights the importance of scientific research in informing policy decisions, aligning with GS3 (Science and Technology) . Potential Exam Questions Discuss the potential health impacts of microplastics and endocrine disruptors like BPA. Evaluate the role of government regulations in mitigating plastic pollution and protecting public health. Analyze the significance of scientific studies in informing environmental policy decisions. Key Facts for Prelims IIT-M is commissioned to study microplastic effects. BPA is an endocrine disruptor found in plastics. Cord blood samples showed BPA levels exceeding recommended limits. The Madras High Court intervened in the matter.