IPCP Webinar Series: Part III: Day 1: Extraction, clean-up, and analysis of POPs in plastics скачать в хорошем качестве

IPCP Webinar Series: Part III: Day 1: Extraction, clean-up, and analysis of POPs in plastics

TIMESTAMPS 0:00:00 Opening remarks - Anna Soehl and Roland Weber (IPCP) 0:04:01 Protecting analytical instruments - Ludwig Gruber (Fraunhofer Institute, Germany) 0:57:12 Extraction of POPs - Ludwig Gruber (Fraunhofer Institute, Germany) 1:21:02 Q&As 1:45:55 Capacity building in Africa - Omotayo Sindiku (University, Ibadan, Nigeria) 2:03:30 Q&As 2:08:28 UV-activated TOP Assay - Jun Huang (Tsinghua University, China) 2:49:55 Brominated flame retardants in WEEE plastics - Nudjarin Ramungul (MTEC, Thailand) 3:09:06 SCCPs/MCCPs and other plasticizers in PVC - Nudjarin Ramungul (MTEC, Thailand) 3:34:21 Q&As DETAILS BACKGROUND: To promote a circular economy of plastics, hazardous chemicals used in plastics production need to be controlled or substituted. Several POPs newly listed in the Stockholm Convention since 2009 are plastic additives, including brominated flame retardants (PBDEs, HBCD, HBB), chlorinated flame retardant/plasticizer (SCCP) and plastic/polymer related fluorinated POPs (PFOS, PFOA, PFHxS). Two other plastic additives are proposed for listing as POPs at the Conference of Parties: the flame retardant Dechlorane Plus and the UV stabilizer UV-328. Furthermore, a recent study by UNEP(1) has found that 13,000 chemicals are associated with plastics and plastic production across a wide range of applications, of which over 3,200 substances are of potential concern due to their hazardous properties. Scientific knowledge and analytical capacity need to be strengthened to support effective decision making at the national and regional levels, and to address priority issues such as plastics/pellets and the health and environmental risks of POPs additives. Therefore, UNEP has initiated in the frame of the GEF-funded POPs Global Monitoring Plan (GMP) projects an initial capacity building and monitoring of POPs in plastics, in particular, in recycled plastic pellets. This includes a series of webinar organised by the International Panel on Chemical Pollution (IPCP). (1) UNEP (2023) Chemicals in plastics: a technical report, in press. OBJECTIVE: Part I of this webinar series (on April 24 and 25) provided an overview on relevant POP groups (and other chemicals of concern) in plastics and some insights into related human exposure and environmental pollution including biota. Part II (on May 19) introduced screening and sampling strategies of plastic categories potentially containing POPs, such as plastics in electronics and vehicles or recycled pellets. Part III (on May 22 and 23) focused on extraction and clean-up methods of plastic samples for POP analysis as well as the instrumental analysis of the major POP groups. AUDIANCE: Authorities in environmental ministries working on POPs, plastics, environmental monitoring or circular economy; researchers interested in chemicals in plastics and others interested in plastic management and assessment of POPs and related chemicals.