Paraquat, a herbicide banned in 74 countries, encounters growing scrutiny in Australia after reports linked it to incurable illnesses. The chemical continues to be used despite international limits. India implemented a countrywide prohibition. Studies show exposure to the chemical may heighten Parkinson’s disease risks. Australian farmers now seek safer alternatives as international bans expand. The controversies follow calls for tighter domestic regulations. Health groups press for stricter controls amid fears of long-term damage. Paraquat’s ongoing use here contrasts with its worldwide withdrawal. Debate deepens over its risk profile.