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E. COLI CONTAMINATION SPARKS WATERBORNE DISEASE EPIDEMIC IN INDORE

Why in the News?

  • Health emergency: An outbreak of waterborne diseases in Indore has been declared an epidemic, claiming at least 10 lives, highlighting the urgent need for a pollution-free environment.
  • Test findings: Over 50% of groundwater samples from Bhagirathpura locality tested positive for E. coli contamination, raising concerns about environmental clearances for local infrastructure.
  • Administrative action: Sale of food by street vendors banned, and residents advised to avoid tap and borewell water, emphasizing the precautionary principle in public health measures.

FINDINGS FROM WATER TESTING

  • Sample results: 35 out of 69 borewell samples showed faecal coliform contamination, indicating potential violations of environmental clearances.
  • Multiple pathogens: Tap water contained E. coli, Salmonella, Vibrio cholerae, along with viruses, fungi, and protozoa, necessitating a thorough environmental impact assessment.
  • Localised issue: Authorities suggest contamination is due to damaged borewells, not widespread groundwater pollution, but this requires verification through proper environmental jurisprudence.
  • Infrastructure concern: Area has 514 borewells, mostly privately owned, used for drinking and household purposes, raising questions about ex post facto approvals.

IMPACT AND RESPONSE MEASURES

  • Scale of impact: Around 3,000 people affected, with 327 hospitalised over the past 10 days, underscoring the importance of the polluter pays principle.
  • Containment steps: 35 contaminated borewells under repair; others being chlorinated, in line with environmental democracy principles.
  • Safe water advisory: Residents instructed to use tanker-supplied water after boiling, adhering to the precautionary principle.
  • Surveillance drive: A digital survey launched to track household water sources and identify infection links, supporting efforts towards a pollution-free environment.

WATERBORNE DISEASES IN INDIA

● Common causes: Linked to contaminated drinking water and poor sanitation, often due to inadequate environmental clearances.

● Major pathogens: Include E. coli, cholera, typhoid, and viral infections, highlighting the need for strict environmental impact assessments.

● Urban risk: Old pipelines and unsafe borewells heighten risks in urban settlements, necessitating adherence to the Forest Conservation Act and Coastal Regulation Zone norms.

● Public health response: Requires early detection, clean water supply, and sanitation control, guided by environmental jurisprudence.

● Preventive focus: Emphasis on water quality monitoring and rapid outbreak management, in line with the precautionary principle and environmental democracy.