A review of properties, occurrence, fate, and transportation mechanisms of contaminants of emerging concern in sewage sludge, biosolids, and soils: recent advances and future trends
A review of properties, occurrence, fate, and transportation mechanisms of contaminants of emerging concern in sewage sludge, biosolids, and soils: recent advances and future trends
From pharmaceuticals to rubber antioxidants, emerging contaminants are everywhere. This comprehensive review dives into over than 400 contaminants detected in sewage sludge, biosolids and soils. Discover the auhtors’ valuable insights into their complexity, environmental fate and the urgent need for smarter detection and regulation
July 31, 2025
Emerging contaminants in our environment present a growing concern as their prevalence continues to rise. This comprehensive review sheds light on 419 different types of contaminants detected in sewage sludge, biosolids, soils, and dust. Among these are commonly encountered substances such as pharmaceuticals and personal care products, alongside specialized compounds like rubber antioxidants, bisphenols, and neonicotinoid insecticides. These pollutants are not only diverse but often also persistent, posing challenges for environmental management.
To address these challenges, advanced analytical techniques such as matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI) have proven invaluable. These methods enable researchers to detect and map the presence of contaminants in complex environmental samples with greater precision. Despite these advancements, significant knowledge gaps remain, particularly concerning the interactions between various contaminants and their long-term effects on soil and water systems.
Looking forward, the authors of this review emphasize the critical need for further research into the degradation byproducts of these contaminants. They advocate for the development of even more sensitive detection methods to enhance monitoring capabilities. Additionally, smarter waste treatment strategies and targeted regulations are essential to mitigate the spread of these pollutants, ensuring that the reuse of biosolids remains both sustainable and safe.
Webinar 1 – 2026 The Australian PFAS Cauldron – Same Contaminants, Different Journey
Australia offers a highly relevant case study of how PFAS contamination challenges conventional approaches to environmental governance and risk assessment. This perspective was presented by Matthew Askeland, Principal Environmental Scientist at ADE Consulting Group, and Karl Bowles, Senior Principal Environmental Scientist at Jacobs and Adjunct Associate Professor at the University of Queensland (QAEHS), both representing ALGA’s Emerging Contaminants of Concern Special Interest Group.
Webinar 2 – 2026 Drivers in the management of PFAS contaminated sites
Sweden has taken a proactive, science-based approach to managing PFAS-contaminated sites, particularly those originating from historical use of aqueous film-forming foams (AFFF) at firefighting training areas. Since 2022, the Swedish Environmental Protection Agency (EPA) has coordinated a governmental assignment, in collaboration with other authorities, to enhance understanding of PFAS pollution and develop effective remediation strategies. This work remains ongoing with several years of funding secured. Niclas Johansson, project manager for the Swedish government’s national initiative on PFAScontaminated sites (RUPFO), shared the project findings during the webinar.
Webinar 3 – 2026 PFAS Risk Evaluation in Soils and Excavated Materials in Flanders
Flanders has developed a practical, science-driven system for setting PFAS limits in soil and excavated materials. This approach carefully balances the protection of human health and the environment with the practical need for soil reuse. The framework was presented by Kaat Touchant and Ingeborg Joris from VITO the Flemish institute for technological research.
Webinar 4 – 2026 Emerging Contaminant Challenges in the New European Soil Monitoring Law
The European Soil Monitoring Law (Directive), published in the Official Journal on 26 November 2025 and entering into force on 16 December 2025 was presented by Esther Goidts, who is a soil scientist and seconded policy officer at the European Commission. Soils deliver critical ecosystem services—including food and biomass production, water purification, nutrient cycling, carbon sequestration, and biodiversity support—yet most European soils are degraded, with contamination contributing to annual economic costs exceeding €50 billion. The Directive represents a landmark step toward achieving healthy soils across the European Union by 2050. Developed to address widespread soil degradation, the Directive establishes a coherent, integrated framework for monitoring soil health, enhancing resilience, and managing contamination.
Save the date for the EmConSoil Webinar Series on the 21st and 28th of April and the 5th and 12th of May!
A new EmConSoil webinar series is coming! Get ready for inspiring talks, cutting-edge insights, and practical solutions from leading experts in emerging contaminants, contaminated soils and environmental sustainability. Four sessions are planned at the end of April (21st and 28th) and beginning of May (5th and 12th) 2026 each time from 9:00 till 10:00 CET.
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