Microplastic in the Food Chain - Food Safety and Environmental Aspects József Lehel and Sadhbh Murphy Toxicity of Graphene: An Update Thiyagarajan Devasena, Arul Prakash Francis, and Sundara Ramaprabhu Multi-level Gene Expression in Response to Environmental Stress in Aquatic Invertebrate Chironomids: Potential Applications in Water Quality Monitoring Kiyun Park and Ihn-Sil Kwak Role of Structural Morphology of Commodity Polymers in Microplastic and Nanoplastics Formation: Fragmentation, Effects, and Associated Toxicity in the Aquatic Environment Cassandra Johannessen and Shegufa Shetranjiwalla Prioritization of Pesticides for Assessment of Risk to Aquatic Ecosystems in Canada and Identification of Knowledge Gaps Julie C Anderson, Sarah C Marteinson, and Ryan Scott Prosser Chapter "Prioritization of Pesticides for Assessment of Risk to Aquatic Ecosystems in Canada and Identification of Knowledge Gaps" is available open access under a Creative Commons Attribution 4.0 International License via springer.com.