Sequential distribution, potential sources, and health risk assessment of persistent toxic substances in sewage sludge used as organic fertilizer in Indo-Gangetic region. - Balkrishna, Acharya; Ghosh, Sourav; Kaushik, Ilika; Arya, VedPriya; Joshi, Divya; Semwal, Diksha; Saxena, Aditi; Singh, Shelly (Environmental Science & Pollution Research, 2025)